From f30b317003cf3d816e561f31c4f19cf7e7f72678 Mon Sep 17 00:00:00 2001 From: Miguel Eduardo Gil Biraud Date: Sat, 6 Dec 2025 14:53:12 +0000 Subject: [PATCH 01/13] Add ClickHouse engine: parser, converter, and catalog Introduces ClickHouse SQL parser integration using github.com/AfterShip/clickhouse-sql-parser. Includes AST converter to sqlc's internal representation, catalog initialization, and type resolver. Foundation for ClickHouse support. --- go.mod | 19 + go.sum | 97 + internal/engine/clickhouse/catalog.go | 355 +++ internal/engine/clickhouse/convert.go | 2430 +++++++++++++++++++ internal/engine/clickhouse/parse.go | 402 +++ internal/engine/clickhouse/type_resolver.go | 95 + 6 files changed, 3398 insertions(+) create mode 100644 internal/engine/clickhouse/catalog.go create mode 100644 internal/engine/clickhouse/convert.go create mode 100644 internal/engine/clickhouse/parse.go create mode 100644 internal/engine/clickhouse/type_resolver.go diff --git a/go.mod b/go.mod index 630795248e..36dba5eb74 100644 --- a/go.mod +++ b/go.mod @@ -34,6 +34,14 @@ require ( require ( cel.dev/expr v0.24.0 // indirect filippo.io/edwards25519 v1.1.0 // indirect + github.com/AfterShip/clickhouse-sql-parser v0.4.16 // indirect + github.com/ClickHouse/ch-go v0.68.0 // indirect + github.com/ClickHouse/clickhouse-go/v2 v2.40.3 // indirect + github.com/andybalholm/brotli v1.2.0 // indirect + github.com/dustin/go-humanize v1.0.1 // indirect + github.com/go-faster/city v1.0.1 // indirect + github.com/go-faster/errors v0.7.1 // indirect + github.com/google/uuid v1.6.0 // indirect github.com/inconshreveable/mousetrap v1.1.0 // indirect github.com/jackc/chunkreader/v2 v2.0.1 // indirect github.com/jackc/pgconn v1.14.3 // indirect @@ -43,18 +51,29 @@ require ( github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 // indirect github.com/jackc/pgtype v1.14.0 // indirect github.com/jackc/puddle/v2 v2.2.2 // indirect + github.com/klauspost/compress v1.18.0 // indirect + github.com/mattn/go-isatty v0.0.20 // indirect + github.com/ncruces/go-strftime v0.1.9 // indirect + github.com/paulmach/orb v0.11.1 // indirect + github.com/pierrec/lz4/v4 v4.1.22 // indirect github.com/ncruces/julianday v1.0.0 // indirect github.com/pingcap/errors v0.11.5-0.20240311024730-e056997136bb // indirect github.com/pingcap/failpoint v0.0.0-20240528011301-b51a646c7c86 // indirect github.com/pingcap/log v1.1.0 // indirect github.com/rogpeppe/go-internal v1.10.0 // indirect + github.com/segmentio/asm v1.2.0 // indirect + github.com/shopspring/decimal v1.4.0 // indirect github.com/stoewer/go-strcase v1.2.0 // indirect github.com/wasilibs/wazero-helpers v0.0.0-20240620070341-3dff1577cd52 // indirect github.com/xeipuuv/gojsonpointer v0.0.0-20180127040702-4e3ac2762d5f // indirect github.com/xeipuuv/gojsonreference v0.0.0-20180127040603-bd5ef7bd5415 // indirect + go.opentelemetry.io/otel v1.38.0 // indirect + go.opentelemetry.io/otel/trace v1.38.0 // indirect go.uber.org/atomic v1.11.0 // indirect go.uber.org/multierr v1.11.0 // indirect go.uber.org/zap v1.27.0 // indirect + go.yaml.in/yaml/v3 v3.0.4 // indirect + golang.org/x/exp v0.0.0-20250620022241-b7579e27df2b // indirect golang.org/x/crypto v0.45.0 // indirect golang.org/x/exp v0.0.0-20250620022241-b7579e27df2b // indirect golang.org/x/net v0.47.0 // indirect diff --git a/go.sum b/go.sum index 002020f15c..44a0692f4a 100644 --- a/go.sum +++ b/go.sum @@ -2,8 +2,16 @@ cel.dev/expr v0.24.0 h1:56OvJKSH3hDGL0ml5uSxZmz3/3Pq4tJ+fb1unVLAFcY= cel.dev/expr v0.24.0/go.mod h1:hLPLo1W4QUmuYdA72RBX06QTs6MXw941piREPl3Yfiw= filippo.io/edwards25519 v1.1.0 h1:FNf4tywRC1HmFuKW5xopWpigGjJKiJSV0Cqo0cJWDaA= filippo.io/edwards25519 v1.1.0/go.mod h1:BxyFTGdWcka3PhytdK4V28tE5sGfRvvvRV7EaN4VDT4= +github.com/AfterShip/clickhouse-sql-parser v0.4.16 h1:gpl+wXclYUKT0p4+gBq22XeRYWwEoZ9f35vogqMvkLQ= +github.com/AfterShip/clickhouse-sql-parser v0.4.16/go.mod h1:W0Z82wJWkJxz2RVun/RMwxue3g7ut47Xxl+SFqdJGus= github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= +github.com/ClickHouse/ch-go v0.68.0 h1:zd2VD8l2aVYnXFRyhTyKCrxvhSz1AaY4wBUXu/f0GiU= +github.com/ClickHouse/ch-go v0.68.0/go.mod h1:C89Fsm7oyck9hr6rRo5gqqiVtaIY6AjdD0WFMyNRQ5s= +github.com/ClickHouse/clickhouse-go/v2 v2.40.3 h1:46jB4kKwVDUOnECpStKMVXxvR0Cg9zeV9vdbPjtn6po= +github.com/ClickHouse/clickhouse-go/v2 v2.40.3/go.mod h1:qO0HwvjCnTB4BPL/k6EE3l4d9f/uF+aoimAhJX70eKA= github.com/Masterminds/semver/v3 v3.1.1/go.mod h1:VPu/7SZ7ePZ3QOrcuXROw5FAcLl4a0cBrbBpGY/8hQs= +github.com/andybalholm/brotli v1.2.0 h1:ukwgCxwYrmACq68yiUqwIWnGY0cTPox/M94sVwToPjQ= +github.com/andybalholm/brotli v1.2.0/go.mod h1:rzTDkvFWvIrjDXZHkuS16NPggd91W3kUSvPlQ1pLaKY= github.com/antlr4-go/antlr/v4 v4.13.1 h1:SqQKkuVZ+zWkMMNkjy5FZe5mr5WURWnlpmOuzYWrPrQ= github.com/antlr4-go/antlr/v4 v4.13.1/go.mod h1:GKmUxMtwp6ZgGwZSva4eWPC5mS6vUAmOABFgjdkM7Nw= github.com/benbjohnson/clock v1.1.0/go.mod h1:J11/hYXuz8f4ySSvYwY0FKfm+ezbsZBKZxNJlLklBHA= @@ -20,6 +28,10 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= github.com/fatih/structtag v1.2.0 h1:/OdNE99OxoI/PqaW/SuSK9uxxT3f/tcSZgon/ssNSx4= github.com/fatih/structtag v1.2.0/go.mod h1:mBJUNpUnHmRKrKlQQlmCrh5PuhftFbNv8Ys4/aAZl94= +github.com/go-faster/city v1.0.1 h1:4WAxSZ3V2Ws4QRDrscLEDcibJY8uf41H6AhXDrNDcGw= +github.com/go-faster/city v1.0.1/go.mod h1:jKcUJId49qdW3L1qKHH/3wPeUstCVpVSXTM6vO3VcTw= +github.com/go-faster/errors v0.7.1 h1:MkJTnDoEdi9pDabt1dpWf7AA8/BaSYZqibYyhZ20AYg= +github.com/go-faster/errors v0.7.1/go.mod h1:5ySTjWFiphBs07IKuiL69nxdfd5+fzh1u7FPGZP2quo= github.com/go-kit/log v0.1.0/go.mod h1:zbhenjAZHb184qTLMA9ZjW7ThYL0H2mk7Q6pNt4vbaY= github.com/go-logfmt/logfmt v0.5.0/go.mod h1:wCYkCAKZfumFQihp8CzCvQ3paCTfi41vtzG1KdI/P7A= github.com/go-logr/logr v1.4.3 h1:CjnDlHq8ikf6E492q6eKboGOC0T8CDaOvkHCIg8idEI= @@ -29,11 +41,14 @@ github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY= github.com/gofrs/uuid v4.0.0+incompatible h1:1SD/1F5pU8p29ybwgQSwpQk+mwdRrXCYuPhW6m+TnJw= github.com/gofrs/uuid v4.0.0+incompatible/go.mod h1:b2aQJv3Z4Fp6yNu3cdSllBxTCLRxnplIgP/c0N/04lM= +github.com/gogo/protobuf v1.3.2/go.mod h1:P1XiOD3dCwIKUDQYPy72D8LYyHL2YPYrpS2s69NZV8Q= github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk= github.com/golang/protobuf v1.5.4 h1:i7eJL8qZTpSEXOPTxNKhASYpMn+8e5Q6AdndVa1dWek= github.com/golang/protobuf v1.5.4/go.mod h1:lnTiLA8Wa4RWRcIUkrtSVa5nRhsEGBg48fD6rSs7xps= +github.com/golang/snappy v0.0.1/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q= github.com/google/cel-go v0.26.1 h1:iPbVVEdkhTX++hpe3lzSk7D3G3QSYqLGoHOcEio+UXQ= github.com/google/cel-go v0.26.1/go.mod h1:A9O8OU9rdvrK5MQyrqfIxo1a0u4g3sF8KB6PUIaryMM= +github.com/google/go-cmp v0.5.2/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE= github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE= github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8= github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU= @@ -95,7 +110,11 @@ github.com/jackc/puddle/v2 v2.2.2 h1:PR8nw+E/1w0GLuRFSmiioY6UooMp6KJv0/61nB7icHo github.com/jackc/puddle/v2 v2.2.2/go.mod h1:vriiEXHvEE654aYKXXjOvZM39qJ0q+azkZFrfEOc3H4= github.com/jinzhu/inflection v1.0.0 h1:K317FqzuhWc8YvSVlFMCCUb36O/S9MCKRDI7QkRKD/E= github.com/jinzhu/inflection v1.0.0/go.mod h1:h+uFLlag+Qp1Va5pdKtLDYj+kHp5pxUVkryuEj+Srlc= +github.com/kisielk/errcheck v1.5.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI2bnpBCr8= github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck= +github.com/klauspost/compress v1.13.6/go.mod h1:/3/Vjq9QcHkK5uEr5lBEmyoZ1iFhe47etQ6QUkpK6sk= +github.com/klauspost/compress v1.18.0 h1:c/Cqfb0r+Yi+JtIEq73FWXVkRonBlf0CRNYc8Zttxdo= +github.com/klauspost/compress v1.18.0/go.mod h1:2Pp+KzxcywXVXMr50+X0Q/Lsb43OQHYWRCY2AiWywWQ= github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ= github.com/konsorten/go-windows-terminal-sequences v1.0.2/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ= github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo= @@ -117,12 +136,22 @@ github.com/mattn/go-colorable v0.1.6/go.mod h1:u6P/XSegPjTcexA+o6vUJrdnUu04hMope github.com/mattn/go-isatty v0.0.5/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s= github.com/mattn/go-isatty v0.0.7/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s= github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU= +github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY= +github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y= +github.com/montanaflynn/stats v0.0.0-20171201202039-1bf9dbcd8cbe/go.mod h1:wL8QJuTMNUDYhXwkmfOly8iTdp5TEcJFWZD2D7SIkUc= +github.com/ncruces/go-strftime v0.1.9 h1:bY0MQC28UADQmHmaF5dgpLmImcShSi2kHU9XLdhx/f4= +github.com/ncruces/go-strftime v0.1.9/go.mod h1:Fwc5htZGVVkseilnfgOVb9mKy6w1naJmn9CehxcKcls= +github.com/paulmach/orb v0.11.1 h1:3koVegMC4X/WeiXYz9iswopaTwMem53NzTJuTF20JzU= +github.com/paulmach/orb v0.11.1/go.mod h1:5mULz1xQfs3bmQm63QEJA6lNGujuRafwA5S/EnuLaLU= +github.com/paulmach/protoscan v0.2.1/go.mod h1:SpcSwydNLrxUGSDvXvO0P7g7AuhJ7lcKfDlhJCDw2gY= github.com/ncruces/go-sqlite3 v0.30.2 h1:1GVbHAkKAOwjJd3JYl8ldrYROudfZUOah7oXPD7VZbQ= github.com/ncruces/go-sqlite3 v0.30.2/go.mod h1:AxKu9sRxkludimFocbktlY6LiYSkxiI5gTA8r+os/Nw= github.com/ncruces/julianday v1.0.0 h1:fH0OKwa7NWvniGQtxdJRxAgkBMolni2BjDHaWTxqt7M= github.com/ncruces/julianday v1.0.0/go.mod h1:Dusn2KvZrrovOMJuOt0TNXL6tB7U2E8kvza5fFc9G7g= github.com/pganalyze/pg_query_go/v6 v6.1.0 h1:jG5ZLhcVgL1FAw4C/0VNQaVmX1SUJx71wBGdtTtBvls= github.com/pganalyze/pg_query_go/v6 v6.1.0/go.mod h1:nvTHIuoud6e1SfrUaFwHqT0i4b5Nr+1rPWVds3B5+50= +github.com/pierrec/lz4/v4 v4.1.22 h1:cKFw6uJDK+/gfw5BcDL0JL5aBsAFdsIT18eRtLj7VIU= +github.com/pierrec/lz4/v4 v4.1.22/go.mod h1:gZWDp/Ze/IJXGXf23ltt2EXimqmTUXEy0GFuRQyBid4= github.com/pingcap/errors v0.11.0/go.mod h1:Oi8TUi2kEtXXLMJk9l1cGmz20kV3TaQ0usTwv5KuLY8= github.com/pingcap/errors v0.11.5-0.20240311024730-e056997136bb h1:3pSi4EDG6hg0orE1ndHkXvX6Qdq2cZn8gAPir8ymKZk= github.com/pingcap/errors v0.11.5-0.20240311024730-e056997136bb/go.mod h1:X2r9ueLEUZgtx2cIogM0v4Zj5uvvzhuuiu7Pn8HzMPg= @@ -147,9 +176,13 @@ github.com/rs/zerolog v1.13.0/go.mod h1:YbFCdg8HfsridGWAh22vktObvhZbQsZXe4/zB0OK github.com/rs/zerolog v1.15.0/go.mod h1:xYTKnLHcpfU2225ny5qZjxnj9NvkumZYjJHlAThCjNc= github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM= github.com/satori/go.uuid v1.2.0/go.mod h1:dA0hQrYB0VpLJoorglMZABFdXlWrHn1NEOzdhQKdks0= +github.com/segmentio/asm v1.2.0 h1:9BQrFxC+YOHJlTlHGkTrFWf59nbL3XnCoFLTwDCI7ys= +github.com/segmentio/asm v1.2.0/go.mod h1:BqMnlJP91P8d+4ibuonYZw9mfnzI9HfxselHZr5aAcs= github.com/shopspring/decimal v0.0.0-20180709203117-cd690d0c9e24/go.mod h1:M+9NzErvs504Cn4c5DxATwIqPbtswREoFCre64PpcG4= github.com/shopspring/decimal v1.2.0 h1:abSATXmQEYyShuxI4/vyW3tV1MrKAJzCZ/0zLUXYbsQ= github.com/shopspring/decimal v1.2.0/go.mod h1:DKyhrW/HYNuLGql+MJL6WCR6knT2jwCFRcu2hWCYk4o= +github.com/shopspring/decimal v1.4.0 h1:bxl37RwXBklmTi0C79JfXCEBD1cqqHt0bbgBAGFp81k= +github.com/shopspring/decimal v1.4.0/go.mod h1:gawqmDU56v4yIKSwfBSFip1HdCCXN8/+DMd9qYNcwME= github.com/sirupsen/logrus v1.4.1/go.mod h1:ni0Sbl8bgC9z8RoU9G6nDWqqs/fq4eDPysMBDgk/93Q= github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE= github.com/spf13/cobra v1.10.1 h1:lJeBwCfmrnXthfAupyUTzJ/J4Nc1RsHC/mSRU2dll/s= @@ -168,22 +201,49 @@ github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXf github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI= github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4= github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA= +github.com/stretchr/testify v1.6.1/go.mod 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+go.opentelemetry.io/otel/trace v1.37.0/go.mod h1:TlgrlQ+PtQO5XFerSPUYG0JSgGyryXewPGyayAWSBS0= go.opentelemetry.io/auto/sdk v1.2.1 h1:jXsnJ4Lmnqd11kwkBV2LgLoFMZKizbCi5fNZ/ipaZ64= go.opentelemetry.io/auto/sdk v1.2.1/go.mod h1:KRTj+aOaElaLi+wW1kO/DZRXwkF4C5xPbEe3ZiIhN7Y= go.opentelemetry.io/otel v1.38.0 h1:RkfdswUDRimDg0m2Az18RKOsnI8UDzppJAtj01/Ymk8= @@ -221,6 +281,8 @@ go.uber.org/zap v1.13.0/go.mod h1:zwrFLgMcdUuIBviXEYEH1YKNaOBnKXsx2IPda5bBwHM= go.uber.org/zap v1.19.0/go.mod h1:xg/QME4nWcxGxrpdeYfq7UvYrLh66cuVKdrbD1XF/NI= go.uber.org/zap v1.27.0 h1:aJMhYGrd5QSmlpLMr2MftRKl7t8J8PTZPA732ud/XR8= go.uber.org/zap v1.27.0/go.mod h1:GB2qFLM7cTU87MWRP2mPIjqfIDnGu+VIO4V/SdhGo2E= +go.yaml.in/yaml/v3 v3.0.4 h1:tfq32ie2Jv2UxXFdLJdh3jXuOzWiL1fo0bu/FbuKpbc= +go.yaml.in/yaml/v3 v3.0.4/go.mod h1:DhzuOOF2ATzADvBadXxruRBLzYTpT36CKvDb3+aBEFg= golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w= golang.org/x/crypto v0.0.0-20190411191339-88737f569e3a/go.mod h1:WFFai1msRO1wXaEeE5yQxYXgSfI8pQAWXbQop6sCtWE= golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= @@ -230,6 +292,11 @@ golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPh golang.org/x/crypto v0.0.0-20201203163018-be400aefbc4c/go.mod h1:jdWPYTVW3xRLrWPugEBEK3UY2ZEsg3UU495nc5E+M+I= golang.org/x/crypto v0.0.0-20210616213533-5ff15b29337e/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc= golang.org/x/crypto v0.0.0-20210711020723-a769d52b0f97/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc= +golang.org/x/crypto v0.0.0-20220622213112-05595931fe9d/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4= +golang.org/x/crypto v0.40.0 h1:r4x+VvoG5Fm+eJcxMaY8CQM7Lb0l1lsmjGBQ6s8BfKM= +golang.org/x/crypto v0.40.0/go.mod h1:Qr1vMER5WyS2dfPHAlsOj01wgLbsyWtFn/aY+5+ZdxY= +golang.org/x/crypto v0.42.0 h1:chiH31gIWm57EkTXpwnqf8qeuMUi0yekh6mT2AvFlqI= +golang.org/x/crypto v0.42.0/go.mod h1:4+rDnOTJhQCx2q7/j6rAN5XDw8kPjeaXEUR2eL94ix8= golang.org/x/crypto v0.45.0 h1:jMBrvKuj23MTlT0bQEOBcAE0mjg8mK9RXFhRH6nyF3Q= golang.org/x/crypto v0.45.0/go.mod h1:XTGrrkGJve7CYK7J8PEww4aY7gM3qMCElcJQ8n8JdX4= golang.org/x/exp v0.0.0-20250620022241-b7579e27df2b h1:M2rDM6z3Fhozi9O7NWsxAkg/yqS/lQJ6PmkyIV3YP+o= @@ -237,11 +304,28 @@ golang.org/x/exp v0.0.0-20250620022241-b7579e27df2b/go.mod h1:3//PLf8L/X+8b4vuAf golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc= golang.org/x/mod v0.0.0-20190513183733-4bf6d317e70e/go.mod h1:mXi4GBBbnImb6dmsKGUJ2LatrhH/nqhxcFungHvyanc= golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg= +golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA= +golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA= +golang.org/x/mod v0.27.0 h1:kb+q2PyFnEADO2IEF935ehFUXlWiNjJWtRNgBLSfbxQ= +golang.org/x/mod v0.27.0/go.mod h1:rWI627Fq0DEoudcK+MBkNkCe0EetEaDSwJJkCcjpazc= golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg= golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg= golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= golang.org/x/net v0.0.0-20190813141303-74dc4d7220e7/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= +golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= +golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU= golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg= +golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y= 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v0.47.0/go.mod h1:/jNxtkgq5yWUGYkaZGqo27cfGZ1c5Nen03aYrrKpVRU= golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= @@ -257,7 +341,9 @@ golang.org/x/sys v0.0.0-20190813064441-fde4db37ae7a/go.mod h1:h1NjWce9XRLGQEsW7w golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.38.0 h1:3yZWxaJjBmCWXqhN1qh02AkOnCQ1poK6oF+a7xWL6Gc= golang.org/x/sys v0.38.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks= @@ -268,6 +354,11 @@ golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk= golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ= golang.org/x/text v0.3.4/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ= golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ= +golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ= +golang.org/x/text v0.27.0 h1:4fGWRpyh641NLlecmyl4LOe6yDdfaYNrGb2zdfo4JV4= +golang.org/x/text v0.27.0/go.mod h1:1D28KMCvyooCX9hBiosv5Tz/+YLxj0j7XhWjpSUF7CU= +golang.org/x/text v0.29.0 h1:1neNs90w9YzJ9BocxfsQNHKuAT4pkghyXc4nhZ6sJvk= +golang.org/x/text v0.29.0/go.mod h1:7MhJOA9CD2qZyOKYazxdYMF85OwPdEr9jTtBpO7ydH4= golang.org/x/text v0.31.0 h1:aC8ghyu4JhP8VojJ2lEHBnochRno1sgL6nEi9WGFGMM= golang.org/x/text v0.31.0/go.mod h1:tKRAlv61yKIjGGHX/4tP1LTbc13YSec1pxVEWXzfoeM= golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= @@ -278,7 +369,12 @@ golang.org/x/tools v0.0.0-20190823170909-c4a336ef6a2f/go.mod h1:b+2E5dAYhXwXZwtn golang.org/x/tools v0.0.0-20191029041327-9cc4af7d6b2c/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo= golang.org/x/tools v0.0.0-20191029190741-b9c20aec41a5/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo= golang.org/x/tools v0.0.0-20191108193012-7d206e10da11/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo= +golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo= golang.org/x/tools v0.0.0-20200103221440-774c71fcf114/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28= +golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE= +golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA= +golang.org/x/tools v0.36.0 h1:kWS0uv/zsvHEle1LbV5LE8QujrxB3wfQyxHfhOk0Qkg= +golang.org/x/tools v0.36.0/go.mod h1:WBDiHKJK8YgLHlcQPYQzNCkUxUypCaa5ZegCVutKm+s= golang.org/x/xerrors v0.0.0-20190410155217-1f06c39b4373/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= golang.org/x/xerrors v0.0.0-20190513163551-3ee3066db522/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= @@ -294,6 +390,7 @@ google.golang.org/genproto/googleapis/rpc v0.0.0-20251022142026-3a174f9686a8/go. google.golang.org/grpc v1.77.0 h1:wVVY6/8cGA6vvffn+wWK5ToddbgdU3d8MNENr4evgXM= google.golang.org/grpc v1.77.0/go.mod h1:z0BY1iVj0q8E1uSQCjL9cppRj+gnZjzDnzV0dHhrNig= google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw= +google.golang.org/protobuf v1.27.1/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc= google.golang.org/protobuf v1.31.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I= google.golang.org/protobuf v1.36.10 h1:AYd7cD/uASjIL6Q9LiTjz8JLcrh/88q5UObnmY3aOOE= google.golang.org/protobuf v1.36.10/go.mod h1:HTf+CrKn2C3g5S8VImy6tdcUvCska2kB7j23XfzDpco= diff --git a/internal/engine/clickhouse/catalog.go b/internal/engine/clickhouse/catalog.go new file mode 100644 index 0000000000..8cc5339363 --- /dev/null +++ b/internal/engine/clickhouse/catalog.go @@ -0,0 +1,355 @@ +package clickhouse + +import ( + "github.com/sqlc-dev/sqlc/internal/sql/ast" + "github.com/sqlc-dev/sqlc/internal/sql/catalog" +) + +// NewCatalog creates a new ClickHouse catalog with default settings +func NewCatalog() *catalog.Catalog { + // ClickHouse uses "default" as the default database + defaultSchemaName := "default" + + cat := &catalog.Catalog{ + DefaultSchema: defaultSchemaName, + Schemas: []*catalog.Schema{ + newDefaultSchema(defaultSchemaName), + }, + Extensions: map[string]struct{}{}, + } + + // Register ClickHouse built-in functions with fixed return types + registerBuiltinFunctions(cat) + + return cat +} + +// newDefaultSchema creates the default ClickHouse schema +func newDefaultSchema(name string) *catalog.Schema { + return &catalog.Schema{ + Name: name, + Tables: make([]*catalog.Table, 0), + Funcs: make([]*catalog.Function, 0), + } +} + +// registerBuiltinFunctions registers ClickHouse built-in functions in the default schema +func registerBuiltinFunctions(cat *catalog.Catalog) { + // Find the default schema + var schema *catalog.Schema + for _, s := range cat.Schemas { + if s.Name == cat.DefaultSchema { + schema = s + break + } + } + if schema == nil { + return + } + + if schema.Funcs == nil { + schema.Funcs = make([]*catalog.Function, 0) + } + + // Aggregate functions that always return uint64 + uint64Type := &ast.TypeName{Name: "uint64"} + int64Type := &ast.TypeName{Name: "int64"} + anyType := &ast.TypeName{Name: "any"} + for _, name := range []string{"count", "uniqexact", "countif", "uniq", "uniqcombined", "uniquehll12"} { + schema.Funcs = append(schema.Funcs, &catalog.Function{ + Name: name, + ReturnType: uint64Type, + Args: []*catalog.Argument{ + { + Name: "arg", + Type: anyType, + Mode: ast.FuncParamVariadic, + }, + }, + }) + } + + // Statistical aggregate functions + float64Type := &ast.TypeName{Name: "float64"} + for _, name := range []string{"varsamp", "varpop", "stddevsamp", "stddevpop", "corr", "covariance", "avg", "avgif"} { + schema.Funcs = append(schema.Funcs, &catalog.Function{ + Name: name, + ReturnType: float64Type, + Args: []*catalog.Argument{ + { + Name: "arg", + Type: anyType, + Mode: ast.FuncParamVariadic, + }, + }, + }) + } + + // Date/Time functions + dateType := &ast.TypeName{Name: "date"} + timeType := &ast.TypeName{Name: "timestamp"} + + // Functions returning Date + for _, name := range []string{"todate", "todate32", "today", "yesterday"} { + schema.Funcs = append(schema.Funcs, &catalog.Function{ + Name: name, + ReturnType: dateType, + Args: []*catalog.Argument{ + {Name: "arg", Type: anyType, Mode: ast.FuncParamVariadic}, + }, + }) + } + + // Functions returning Timestamp (DateTime/DateTime64) + for _, name := range []string{"now", "todatetime", "todatetime64", "parseDateTime", "parseDateTimeBestEffort", "parseDateTime64BestEffort"} { + schema.Funcs = append(schema.Funcs, &catalog.Function{ + Name: name, + ReturnType: timeType, + Args: []*catalog.Argument{ + {Name: "arg", Type: anyType, Mode: ast.FuncParamVariadic}, + }, + }) + } + + // Functions returning integers (components) + int32Type := &ast.TypeName{Name: "int32"} + for _, name := range []string{"toyear", "tomonth", "todayofmonth", "tohour", "tominute", "tosecond", "tounixtimestamp"} { + schema.Funcs = append(schema.Funcs, &catalog.Function{ + Name: name, + ReturnType: int32Type, + Args: []*catalog.Argument{ + {Name: "arg", Type: anyType, Mode: ast.FuncParamIn}, + }, + }) + } + + // String functions + stringType := &ast.TypeName{Name: "text"} + for _, name := range []string{ + "concat", "substring", "lower", "upper", "trim", "ltrim", "rtrim", "reverse", + "replace", "replaceall", "replaceregexpone", "replaceregexpall", + "format", "tostring", "base64encode", "base64decode", "hex", "unhex", + "extract", "extractall", "splitbychar", "splitbystring", "splitbyregexp", + "domain", "domainwithoutwww", "topleveldomain", "protocol", "path", + "cutquerystring", "cutfragment", "cutwww", "cutquerystringandfragment", + } { + schema.Funcs = append(schema.Funcs, &catalog.Function{ + Name: name, + ReturnType: stringType, + Args: []*catalog.Argument{ + { + Name: "arg", + Type: anyType, + Mode: ast.FuncParamVariadic, + }, + }, + }) + } + + // Hashing functions (returning strings usually, or numbers) + for _, name := range []string{"md5", "sha1", "sha224", "sha256", "halfmd5"} { + schema.Funcs = append(schema.Funcs, &catalog.Function{ + Name: name, + ReturnType: stringType, + Args: []*catalog.Argument{{Name: "arg", Type: anyType, Mode: ast.FuncParamVariadic}}, + }) + } + for _, name := range []string{"siphash64", "siphash128", "cityhash64", "inthash32", "inthash64", "farmhash64", "metrohash64"} { + schema.Funcs = append(schema.Funcs, &catalog.Function{ + Name: name, + ReturnType: uint64Type, // hashes are often uint64 + Args: []*catalog.Argument{{Name: "arg", Type: anyType, Mode: ast.FuncParamVariadic}}, + }) + } + + // JSON Functions + // JSONExtract is special (handled by type resolver), but we register it with anyType fallback + // JSONHas, JSONLength, JSONType, JSONExtractString, etc. + + // JSON functions returning generic/string + for _, name := range []string{"jsonextract", "jsonextractstring", "jsonextractraw", "tojsonstring"} { + schema.Funcs = append(schema.Funcs, &catalog.Function{ + Name: name, + ReturnType: stringType, // Fallback to string/text + Args: []*catalog.Argument{{Name: "arg", Type: anyType, Mode: ast.FuncParamVariadic}}, + }) + } + + // JSON functions returning bool + boolType := &ast.TypeName{Name: "bool"} + for _, name := range []string{"jsonhas", "jsonextractbool", "isvalidjson"} { + schema.Funcs = append(schema.Funcs, &catalog.Function{ + Name: name, + ReturnType: boolType, + Args: []*catalog.Argument{{Name: "arg", Type: anyType, Mode: ast.FuncParamVariadic}}, + }) + } + + // JSON functions returning int/float + for _, name := range []string{"jsonlength", "jsonextractint", "jsonextractuint"} { + schema.Funcs = append(schema.Funcs, &catalog.Function{ + Name: name, + ReturnType: int64Type, + Args: []*catalog.Argument{{Name: "arg", Type: anyType, Mode: ast.FuncParamVariadic}}, + }) + } + for _, name := range []string{"jsonextractfloat"} { + schema.Funcs = append(schema.Funcs, &catalog.Function{ + Name: name, + ReturnType: float64Type, + Args: []*catalog.Argument{{Name: "arg", Type: anyType, Mode: ast.FuncParamVariadic}}, + }) + } + + // Array Functions (generic return) + // Many array functions return arrays, which sqlc handles as generic "any" mostly unless resolved + for _, name := range []string{ + "array", "arrayconcat", "arrayslice", "arraypushback", "arraypushfront", + "arraypopback", "arraypopfront", "arrayresize", "arrayfilter", "arraymap", + "arrayreverse", "arraysort", "arraydistinct", "arrayuniq", "arrayjoin", + "arrayenumerate", "arrayenumerateuniq", "arrayflatten", "arraycompact", + "arrayzip", "arrayreduce", "arrayfold", + } { + schema.Funcs = append(schema.Funcs, &catalog.Function{ + Name: name, + ReturnType: anyType, + Args: []*catalog.Argument{{Name: "arg", Type: anyType, Mode: ast.FuncParamVariadic}}, + }) + } + // Array functions returning bool + for _, name := range []string{"has", "hasall", "hasany", "hassubstr", "arrayexists", "arrayall"} { + schema.Funcs = append(schema.Funcs, &catalog.Function{ + Name: name, + ReturnType: boolType, + Args: []*catalog.Argument{{Name: "arg", Type: anyType, Mode: ast.FuncParamVariadic}}, + }) + } + // Array functions returning int/uint + for _, name := range []string{"length", "empty", "notempty", "arraycount", "indexof"} { + schema.Funcs = append(schema.Funcs, &catalog.Function{ + Name: name, + ReturnType: uint64Type, + Args: []*catalog.Argument{{Name: "arg", Type: anyType, Mode: ast.FuncParamVariadic}}, + }) + } + + // Type Conversion + // toInt*, toUInt*, toFloat*, toDecimal* + for _, name := range []string{"toint8", "toint16", "toint32", "toint64", "toint128", "toint256"} { + // Simplified to int64 for now for sqlc mapping purposes, though could be specific + schema.Funcs = append(schema.Funcs, &catalog.Function{ + Name: name, + ReturnType: int64Type, + Args: []*catalog.Argument{{Name: "arg", Type: anyType, Mode: ast.FuncParamIn}}, + }) + } + for _, name := range []string{"touint8", "touint16", "touint32", "touint64", "touint128", "touint256"} { + schema.Funcs = append(schema.Funcs, &catalog.Function{ + Name: name, + ReturnType: uint64Type, + Args: []*catalog.Argument{{Name: "arg", Type: anyType, Mode: ast.FuncParamIn}}, + }) + } + for _, name := range []string{"tofloat32", "tofloat64"} { + schema.Funcs = append(schema.Funcs, &catalog.Function{ + Name: name, + ReturnType: float64Type, + Args: []*catalog.Argument{{Name: "arg", Type: anyType, Mode: ast.FuncParamIn}}, + }) + } + + // UUID + schema.Funcs = append(schema.Funcs, &catalog.Function{ + Name: "generateuuidv4", + ReturnType: &ast.TypeName{Name: "uuid"}, + }) + + // IP + schema.Funcs = append(schema.Funcs, &catalog.Function{ + Name: "ipv4stringtonum", + ReturnType: uint64Type, + Args: []*catalog.Argument{{Name: "arg", Type: anyType, Mode: ast.FuncParamIn}}, + }) + schema.Funcs = append(schema.Funcs, &catalog.Function{ + Name: "ipv4numtostring", + ReturnType: stringType, + Args: []*catalog.Argument{{Name: "arg", Type: anyType, Mode: ast.FuncParamIn}}, + }) + + // Functions with context-dependent return types + // These are registered with a placeholder return type and will be handled specially + // by the compiler when analyzing query output columns + + // arrayJoin(Array(T)) returns T + schema.Funcs = append(schema.Funcs, &catalog.Function{ + Name: "arrayjoin", + ReturnType: anyType, + Args: []*catalog.Argument{ + { + Name: "arr", + Type: anyType, + Mode: ast.FuncParamIn, + }, + }, + }) + + // argMin and argMax return the type of their first argument + for _, name := range []string{"argmin", "argmax"} { + schema.Funcs = append(schema.Funcs, &catalog.Function{ + Name: name, + ReturnType: anyType, + Args: []*catalog.Argument{ + {Name: "val", Type: anyType, Mode: ast.FuncParamIn}, + {Name: "arg", Type: anyType, Mode: ast.FuncParamIn}, + }, + }) + } + + // argMinIf and argMaxIf return the type of their first argument + for _, name := range []string{"argminif", "argmaxif"} { + schema.Funcs = append(schema.Funcs, &catalog.Function{ + Name: name, + ReturnType: anyType, + Args: []*catalog.Argument{ + {Name: "val", Type: anyType, Mode: ast.FuncParamIn}, + {Name: "arg", Type: anyType, Mode: ast.FuncParamIn}, + {Name: "cond", Type: anyType, Mode: ast.FuncParamIn}, + }, + }) + } + + // any, anyLast, anyHeavy return the type of their argument + for _, name := range []string{"any", "anylast", "anyheavy", "min", "max", "sum"} { + schema.Funcs = append(schema.Funcs, &catalog.Function{ + Name: name, + ReturnType: anyType, + Args: []*catalog.Argument{ + { + Name: "arg", + Type: anyType, + Mode: ast.FuncParamIn, + }, + }, + }) + } + + // anyIf, anyLastIf, anyHeavyIf, minIf, maxIf, sumIf return the type of their argument + for _, name := range []string{"anyif", "anylastif", "anyheavyif", "minif", "maxif", "sumif"} { + schema.Funcs = append(schema.Funcs, &catalog.Function{ + Name: name, + ReturnType: anyType, + Args: []*catalog.Argument{ + { + Name: "arg", + Type: anyType, + Mode: ast.FuncParamIn, + }, + { + Name: "cond", + Type: anyType, + Mode: ast.FuncParamIn, + }, + }, + }) + } +} diff --git a/internal/engine/clickhouse/convert.go b/internal/engine/clickhouse/convert.go new file mode 100644 index 0000000000..940e084a75 --- /dev/null +++ b/internal/engine/clickhouse/convert.go @@ -0,0 +1,2430 @@ +package clickhouse + +import ( + "log" + "strconv" + "strings" + + chparser "github.com/AfterShip/clickhouse-sql-parser/parser" + + "github.com/sqlc-dev/sqlc/internal/debug" + "github.com/sqlc-dev/sqlc/internal/sql/ast" + "github.com/sqlc-dev/sqlc/internal/sql/catalog" +) + +type cc struct { + paramCount int + subqueryCount int + catalog interface{} // *catalog.Catalog - using interface{} to avoid circular imports +} + +func todo(n chparser.Expr) *ast.TODO { + if debug.Active { + log.Printf("clickhouse.convert: Unsupported AST node type %T\n", n) + log.Printf("clickhouse.convert: This node type may not be fully supported yet. Consider using different query syntax or filing an issue.\n") + } + return &ast.TODO{} +} + +// identifier preserves the case of identifiers as ClickHouse is case-sensitive +// for table, column, and schema names +func identifier(id string) string { + return id +} + +// normalizeFunctionName normalizes function names to lowercase for comparison +// ClickHouse function names are case-insensitive, so we normalize them for lookups +func normalizeFunctionName(name string) string { + return strings.ToLower(name) +} + +func NewIdentifier(t string) *ast.String { + return &ast.String{Str: identifier(t)} +} + +// getCatalog safely casts the interface{} catalog to a *catalog.Catalog +func (c *cc) getCatalog() *catalog.Catalog { + if c.catalog == nil { + return nil + } + cat, ok := c.catalog.(*catalog.Catalog) + if !ok { + return nil + } + return cat +} + +// registerFunctionInCatalog registers or updates a function in the catalog with the given return type +func (c *cc) registerFunctionInCatalog(funcName string, returnType *ast.TypeName) { + cat := c.getCatalog() + if cat == nil { + return + } + + // Find the default schema + var schema *catalog.Schema + for _, s := range cat.Schemas { + if s.Name == cat.DefaultSchema { + schema = s + break + } + } + if schema == nil { + return + } + + // Check if function already exists + for i, f := range schema.Funcs { + if strings.ToLower(f.Name) == strings.ToLower(funcName) { + // Update existing function + schema.Funcs[i].ReturnType = returnType + return + } + } + + // Add new function + schema.Funcs = append(schema.Funcs, &catalog.Function{ + Name: strings.ToLower(funcName), + ReturnType: returnType, + }) +} + +// findColumnTypeInCatalog searches all tables in the catalog for a column and returns its type +// This is used for unqualified column references (no table prefix) +// Returns the type of the first matching column found, or empty string if not found +// If multiple tables have the same column name, this is ambiguous but we return the first match +// (relying on the query to be syntactically valid from ClickHouse's perspective) +// Column names are case-sensitive in ClickHouse +func (c *cc) findColumnTypeInCatalog(columnName string) string { + cat := c.getCatalog() + if cat == nil { + return "" + } + + // Search all schemas + for _, schema := range cat.Schemas { + if schema == nil || schema.Tables == nil { + continue + } + // Search all tables in this schema + for _, table := range schema.Tables { + if table == nil || table.Columns == nil { + continue + } + // Search all columns in this table + // Column names are case-sensitive + for _, col := range table.Columns { + if col.Name == columnName { + return col.Type.Name + } + } + } + } + + return "" +} + +// extractTypeFromColumnRef extracts the type of a column reference from the catalog +// Returns empty string if the column cannot be resolved +// Column names are case-sensitive in ClickHouse +func (c *cc) extractTypeFromColumnRef(colRef *ast.ColumnRef) string { + if colRef == nil || colRef.Fields == nil || len(colRef.Fields.Items) == 0 { + return "" + } + + cat := c.getCatalog() + if cat == nil { + return "" + } + + // Extract the parts of the column reference + var parts []string + for _, item := range colRef.Fields.Items { + if s, ok := item.(*ast.String); ok { + parts = append(parts, s.Str) + } + } + + if len(parts) == 0 { + return "" + } + + // Try to resolve: table.column or just column + var tableName, columnName string + if len(parts) == 2 { + tableName = parts[0] + columnName = parts[1] + } else if len(parts) == 1 { + columnName = parts[0] + // Unqualified column - search all tables in all schemas + return c.findColumnTypeInCatalog(columnName) + } else { + return "" + } + + // Qualified table.column - look up the specific table + tableRef := &ast.TableName{Name: tableName} + table, err := cat.GetTable(tableRef) + if err != nil { + return "" + } + + // Find the column - case-sensitive comparison + for _, col := range table.Columns { + if col.Name == columnName { + return col.Type.Name + } + } + + return "" +} + +// convert converts a ClickHouse AST node to a sqlc AST node +func (c *cc) convert(node chparser.Expr) ast.Node { + if node == nil { + return nil + } + + switch n := node.(type) { + case *chparser.SelectQuery: + result := c.convertSelectQuery(n) + if debug.Active { + if stmt, ok := result.(*ast.SelectStmt); ok && stmt != nil && stmt.TargetList != nil { + isUnion := len(stmt.TargetList.Items) == 0 && stmt.Larg != nil + log.Printf("[DEBUG] clickhouse.convert: SelectQuery converted, isUnion=%v, targets=%d", isUnion, len(stmt.TargetList.Items)) + } + } + return result + case *chparser.InsertStmt: + return c.convertInsertStmt(n) + case *chparser.AlterTable: + return c.convertAlterTable(n) + case *chparser.CreateTable: + return c.convertCreateTable(n) + case *chparser.CreateDatabase: + return c.convertCreateDatabase(n) + case *chparser.CreateView: + return c.convertCreateView(n) + case *chparser.CreateMaterializedView: + return c.convertCreateMaterializedView(n) + case *chparser.DropStmt: + return c.convertDropStmt(n) + case *chparser.OptimizeStmt: + return c.convertOptimizeStmt(n) + case *chparser.DescribeStmt: + return c.convertDescribeStmt(n) + case *chparser.ExplainStmt: + return c.convertExplainStmt(n) + case *chparser.ShowStmt: + return c.convertShowStmt(n) + case *chparser.TruncateTable: + return c.convertTruncateTable(n) + + // Expression nodes + case *chparser.Ident: + return c.convertIdent(n) + case *chparser.Path: + return c.convertPath(n) + case *chparser.ColumnExpr: + return c.convertColumnExpr(n) + case *chparser.FunctionExpr: + return c.convertFunctionExpr(n) + case *chparser.BinaryOperation: + return c.convertBinaryOperation(n) + case *chparser.NumberLiteral: + return c.convertNumberLiteral(n) + case *chparser.StringLiteral: + return c.convertStringLiteral(n) + case *chparser.QueryParam: + return c.convertQueryParam(n) + case *chparser.NestedIdentifier: + return c.convertNestedIdentifier(n) + case *chparser.OrderExpr: + return c.convertOrderExpr(n) + case *chparser.PlaceHolder: + return c.convertPlaceHolder(n) + case *chparser.JoinTableExpr: + return c.convertJoinTableExpr(n) + + // Additional expression nodes + case *chparser.CastExpr: + return c.convertCastExpr(n) + case *chparser.CaseExpr: + return c.convertCaseExpr(n) + case *chparser.WindowFunctionExpr: + return c.convertWindowFunctionExpr(n) + case *chparser.IsNullExpr: + return c.convertIsNullExpr(n) + case *chparser.IsNotNullExpr: + return c.convertIsNotNullExpr(n) + case *chparser.UnaryExpr: + return c.convertUnaryExpr(n) + case *chparser.MapLiteral: + return c.convertMapLiteral(n) + case *chparser.ParamExprList: + return c.convertParamExprList(n) + case *chparser.IndexOperation: + return c.convertIndexOperation(n) + case *chparser.ArrayParamList: + return c.convertArrayParamList(n) + case *chparser.TableFunctionExpr: + return c.convertTableFunctionExpr(n) + case *chparser.TernaryOperation: + return c.convertTernaryOperation(n) + + case *chparser.UsingClause: + return c.convertUsingClause(n) + + default: + // Return TODO for unsupported node types + return todo(n) + } +} + +func (c *cc) convertSelectQuery(stmt *chparser.SelectQuery) ast.Node { + selectStmt := &ast.SelectStmt{ + TargetList: c.convertSelectItems(stmt.SelectItems), + FromClause: c.convertFromClause(stmt.From), + WhereClause: c.convertWhereClause(stmt.Where), + GroupClause: c.convertGroupByClause(stmt.GroupBy), + HavingClause: c.convertHavingClause(stmt.Having), + SortClause: c.convertOrderByClause(stmt.OrderBy), + WithClause: c.convertWithClause(stmt.With), + } + + // Handle ARRAY JOIN by integrating it into the FROM clause + if stmt.ArrayJoin != nil { + selectStmt.FromClause = c.mergeArrayJoinIntoFrom(selectStmt.FromClause, stmt.ArrayJoin) + } + + // Handle DISTINCT + if stmt.HasDistinct { + selectStmt.DistinctClause = &ast.List{Items: []ast.Node{}} + } + + // Handle LIMIT + if stmt.Limit != nil { + selectStmt.LimitCount = c.convertLimitClause(stmt.Limit) + if stmt.Limit.Offset != nil { + selectStmt.LimitOffset = c.convert(stmt.Limit.Offset) + } + } + + // Handle UNION/EXCEPT + if stmt.UnionAll != nil || stmt.UnionDistinct != nil || stmt.Except != nil { + // For UNION/EXCEPT queries, create a wrapper SelectStmt with no targets + // The Larg points to the left SELECT, Rarg points to the right SELECT + wrapperStmt := &ast.SelectStmt{ + TargetList: &ast.List{}, // Empty list, not nil + FromClause: &ast.List{}, // Empty list, not nil + } + + // Set the left SELECT (current selectStmt with all its targets and clauses) + wrapperStmt.Larg = selectStmt + + // Determine the operation and set the right SELECT + if stmt.UnionAll != nil { + wrapperStmt.Op = ast.Union + wrapperStmt.All = true + wrapperStmt.Rarg = c.convertSelectQuery(stmt.UnionAll).(*ast.SelectStmt) + } else if stmt.UnionDistinct != nil { + wrapperStmt.Op = ast.Union + wrapperStmt.All = false + wrapperStmt.Rarg = c.convertSelectQuery(stmt.UnionDistinct).(*ast.SelectStmt) + } else if stmt.Except != nil { + wrapperStmt.Op = ast.Except + wrapperStmt.Rarg = c.convertSelectQuery(stmt.Except).(*ast.SelectStmt) + } + + return wrapperStmt + } + + return selectStmt +} + +func (c *cc) convertSelectItems(items []*chparser.SelectItem) *ast.List { + list := &ast.List{Items: []ast.Node{}} + for _, item := range items { + list.Items = append(list.Items, c.convertSelectItem(item)) + } + return list +} + +func (c *cc) convertSelectItem(item *chparser.SelectItem) *ast.ResTarget { + var name *string + if item.Alias != nil { + aliasName := identifier(item.Alias.Name) + name = &aliasName + } else { + // If no explicit alias, try to extract a default name from the expression + // For Path expressions like u.id, use the last part as the name + if path, ok := item.Expr.(*chparser.Path); ok && path != nil && len(path.Fields) > 0 { + lastName := identifier(path.Fields[len(path.Fields)-1].Name) + name = &lastName + } + } + + return &ast.ResTarget{ + Name: name, + Val: c.convert(item.Expr), + Location: int(item.Pos()), + } +} + +func (c *cc) convertFromClause(from *chparser.FromClause) *ast.List { + if from == nil { + return &ast.List{} + } + + list := &ast.List{Items: []ast.Node{}} + + // From.Expr can be a TableExpr, JoinExpr, or other expression + if from.Expr != nil { + list.Items = append(list.Items, c.convertFromExpr(from.Expr)) + } + + return list +} + +func (c *cc) convertFromExpr(expr chparser.Expr) ast.Node { + if expr == nil { + return &ast.TODO{} + } + + switch e := expr.(type) { + case *chparser.TableExpr: + return c.convertTableExpr(e) + case *chparser.JoinTableExpr: + // JoinTableExpr wraps a table with optional FINAL and SAMPLE clauses + // The Table field contains the actual table reference + if e.Table != nil { + return c.convertTableExpr(e.Table) + } + return &ast.TODO{} + case *chparser.JoinExpr: + return c.convertJoinExpr(e) + default: + return c.convert(expr) + } +} + +func (c *cc) convertTableExpr(expr *chparser.TableExpr) ast.Node { + if expr == nil { + return &ast.TODO{} + } + + if debug.Active { + log.Printf("[DEBUG] convertTableExpr called with expr type: %T", expr.Expr) + } + + // The Expr field contains the actual table reference + var baseNode ast.Node + var alias *string + + // Handle AliasExpr which wraps the actual table reference with an alias + exprToProcess := expr.Expr + if aliasExpr, ok := expr.Expr.(*chparser.AliasExpr); ok { + // Extract the alias name + if aliasExpr.Alias != nil { + if aliasIdent, ok := aliasExpr.Alias.(*chparser.Ident); ok { + aliasName := identifier(aliasIdent.Name) + alias = &aliasName + } + } + // Process the underlying expression + exprToProcess = aliasExpr.Expr + } + + if tableIdent, ok := exprToProcess.(*chparser.TableIdentifier); ok { + baseNode = c.convertTableIdentifier(tableIdent) + // Apply alias if we found one + if alias != nil { + if rangeVar, ok := baseNode.(*ast.RangeVar); ok { + rangeVar.Alias = &ast.Alias{ + Aliasname: alias, + } + } + } + } else if selectQuery, ok := exprToProcess.(*chparser.SelectQuery); ok { + // Subquery (SelectQuery) + convertedSubquery := c.convert(selectQuery) + if debug.Active { + if stmt, ok := convertedSubquery.(*ast.SelectStmt); ok && stmt != nil && stmt.TargetList != nil { + isUnion := len(stmt.TargetList.Items) == 0 && stmt.Larg != nil + log.Printf("[DEBUG] convertTableExpr: SelectQuery converted, isUnion=%v, targets=%d", isUnion, len(stmt.TargetList.Items)) + } + } + rangeSubselect := &ast.RangeSubselect{ + Subquery: convertedSubquery, + } + if alias != nil { + rangeSubselect.Alias = &ast.Alias{ + Aliasname: alias, + } + } else if expr.Alias != nil { + if aliasIdent, ok := expr.Alias.Alias.(*chparser.Ident); ok { + rangeSubselect.Alias = &ast.Alias{ + Aliasname: &aliasIdent.Name, + } + } + } else { + // Generate a synthetic alias for subqueries without explicit aliases + // This is necessary for the compiler to resolve columns from the subquery + c.subqueryCount++ + syntheticAlias := "sq_" + strconv.Itoa(c.subqueryCount) + // IMPORTANT: Copy the string to ensure the pointer persists + aliasCopy := syntheticAlias + rangeSubselect.Alias = &ast.Alias{ + Aliasname: &aliasCopy, + } + } + return rangeSubselect + } else if subQuery, ok := exprToProcess.(*chparser.SubQuery); ok { + // Subquery (SubQuery with Select field) + if subQuery.Select == nil { + return &ast.TODO{} + } + convertedSubquery := c.convert(subQuery.Select) + if debug.Active { + if stmt, ok := convertedSubquery.(*ast.SelectStmt); ok && stmt != nil && stmt.TargetList != nil { + isUnion := len(stmt.TargetList.Items) == 0 && stmt.Larg != nil + log.Printf("[DEBUG] convertTableExpr: SubQuery.Select converted, isUnion=%v, targets=%d", isUnion, len(stmt.TargetList.Items)) + } + } + rangeSubselect := &ast.RangeSubselect{ + Subquery: convertedSubquery, + } + if alias != nil { + rangeSubselect.Alias = &ast.Alias{ + Aliasname: alias, + } + } else if expr.Alias != nil { + if aliasIdent, ok := expr.Alias.Alias.(*chparser.Ident); ok { + rangeSubselect.Alias = &ast.Alias{ + Aliasname: &aliasIdent.Name, + } + } + } else { + // Generate a synthetic alias for subqueries without explicit aliases + // This is necessary for the compiler to resolve columns from the subquery + c.subqueryCount++ + syntheticAlias := "sq_" + strconv.Itoa(c.subqueryCount) + // IMPORTANT: Copy the string to ensure the pointer persists + aliasCopy := syntheticAlias + rangeSubselect.Alias = &ast.Alias{ + Aliasname: &aliasCopy, + } + } + return rangeSubselect + } else { + baseNode = c.convert(exprToProcess) + } + + return baseNode +} + +func (c *cc) convertTableIdentifier(ident *chparser.TableIdentifier) *ast.RangeVar { + var schema *string + var table *string + + if ident.Database != nil { + dbName := identifier(ident.Database.Name) + schema = &dbName + } + + if ident.Table != nil { + tableName := identifier(ident.Table.Name) + table = &tableName + } + + rangeVar := &ast.RangeVar{ + Schemaname: schema, + Relname: table, + Inh: true, + Location: int(ident.Pos()), + } + + return rangeVar +} + +func (c *cc) convertJoinExpr(join *chparser.JoinExpr) ast.Node { + // JoinExpr represents JOIN operations + // Left and Right are the expressions being joined + // Modifiers contains things like "LEFT", "RIGHT", "INNER", etc. + // Constraints contains either an ON clause expression or a USING clause + // + // Note: ClickHouse's parser sometimes creates nested JoinExpr structures: + // JoinExpr{Left: table1, Right: JoinExpr{Left: table2, Right: nil, Constraints: USING}} + // We normalize this to match PostgreSQL's flat structure during conversion. + + // Check if Right is a nested JoinExpr with USING clause and no Right itself + // This is a ClickHouse-specific pattern that we flatten to PostgreSQL-style + var rarg chparser.Expr = join.Right + var constraints chparser.Expr = join.Constraints + + if nestedJoin, ok := join.Right.(*chparser.JoinExpr); ok { + // If the nested join has no Right child and has USING constraints on it, + // we're looking at a ClickHouse nested structure that should be flattened + if nestedJoin.Right == nil && nestedJoin.Constraints != nil { + // Pull the table from the nested join's Left + rarg = nestedJoin.Left + // Pull the constraints from the nested join + constraints = nestedJoin.Constraints + + // Copy modifiers from nested join if the top-level has none + if len(join.Modifiers) == 0 && len(nestedJoin.Modifiers) > 0 { + join.Modifiers = nestedJoin.Modifiers + } + } + } + + joinNode := &ast.JoinExpr{ + Larg: c.convertFromExpr(join.Left), + Rarg: c.convertFromExpr(rarg), + } + + // Determine join type from modifiers + joinType := "JOIN" + for _, mod := range join.Modifiers { + modUpper := strings.ToUpper(mod) + if modUpper == "LEFT" || modUpper == "RIGHT" || modUpper == "FULL" || modUpper == "INNER" { + joinType = modUpper + " " + joinType + } + } + joinNode.Jointype = c.parseJoinType(joinType) + + // Handle constraints: either ON clause or USING clause + if constraints != nil { + // Check if this is a USING clause + if usingClause, ok := constraints.(*chparser.UsingClause); ok { + // Convert USING clause to ast.JoinExpr.UsingClause + joinNode.UsingClause = c.convertUsingClauseToList(usingClause) + } else { + // Handle ON clause (regular expression) + joinNode.Quals = c.convert(constraints) + } + } + + return joinNode +} + +func (c *cc) parseJoinType(joinType string) ast.JoinType { + upperType := strings.ToUpper(joinType) + switch { + case strings.Contains(upperType, "LEFT"): + return ast.JoinTypeLeft + case strings.Contains(upperType, "RIGHT"): + return ast.JoinTypeRight + case strings.Contains(upperType, "FULL"): + return ast.JoinTypeFull + case strings.Contains(upperType, "INNER"): + return ast.JoinTypeInner + default: + return ast.JoinTypeInner + } +} + +// convertUsingClause converts a ClickHouse UsingClause to an ast.List of String nodes +// This creates a representation compatible with PostgreSQL-style USING clauses +func (c *cc) convertUsingClause(using *chparser.UsingClause) ast.Node { + if using == nil || using.Using == nil { + return nil + } + return c.convertUsingClauseToList(using) +} + +// convertUsingClauseToList converts a ClickHouse UsingClause to an ast.List of String nodes +// representing the column names in the USING clause +func (c *cc) convertUsingClauseToList(using *chparser.UsingClause) *ast.List { + if using == nil || using.Using == nil || len(using.Using.Items) == 0 { + return nil + } + + list := &ast.List{Items: []ast.Node{}} + for _, item := range using.Using.Items { + // Each item should be a ColumnExpr wrapping an Ident + colExpr, ok := item.(*chparser.ColumnExpr) + if !ok { + continue + } + + // Get the column name from the ColumnExpr + if ident, ok := colExpr.Expr.(*chparser.Ident); ok { + colName := identifier(ident.Name) + list.Items = append(list.Items, &ast.String{Str: colName}) + } + } + + return list +} + +func (c *cc) convertWhereClause(where *chparser.WhereClause) ast.Node { + if where == nil { + return nil + } + return c.convert(where.Expr) +} + +func (c *cc) convertGroupByClause(groupBy *chparser.GroupByClause) *ast.List { + if groupBy == nil { + return &ast.List{} + } + + list := &ast.List{Items: []ast.Node{}} + // GroupBy.Expr is a single expression which might be a comma-separated list + if groupBy.Expr != nil { + // Just convert the expression as-is + // The parser should handle comma-separated lists internally + list.Items = append(list.Items, c.convert(groupBy.Expr)) + } + return list +} + +func (c *cc) convertHavingClause(having *chparser.HavingClause) ast.Node { + if having == nil { + return nil + } + return c.convert(having.Expr) +} + +func (c *cc) convertOrderByClause(orderBy *chparser.OrderByClause) *ast.List { + if orderBy == nil { + return &ast.List{} + } + + list := &ast.List{Items: []ast.Node{}} + + // OrderBy.Items is a slice of Expr + // For now, just convert each item directly + for _, item := range orderBy.Items { + list.Items = append(list.Items, c.convert(item)) + } + + return list +} + +func (c *cc) convertLimitClause(limit *chparser.LimitClause) ast.Node { + if limit == nil || limit.Limit == nil { + return nil + } + return c.convert(limit.Limit) +} + +func (c *cc) convertWithClause(with *chparser.WithClause) *ast.WithClause { + if with == nil { + return nil + } + + list := &ast.List{Items: []ast.Node{}} + for _, cte := range with.CTEs { + list.Items = append(list.Items, c.convertCTE(cte)) + } + + return &ast.WithClause{ + Ctes: list, + Location: int(with.Pos()), + } +} + +func (c *cc) convertCTE(cte *chparser.CTEStmt) *ast.CommonTableExpr { + if cte == nil { + return nil + } + + // Extract CTE name from Expr (should be an Ident) + var cteName *string + if ident, ok := cte.Expr.(*chparser.Ident); ok { + name := identifier(ident.Name) + cteName = &name + } + + return &ast.CommonTableExpr{ + Ctename: cteName, + Ctequery: c.convert(cte.Alias), + Location: int(cte.Pos()), + } +} + +func (c *cc) convertInsertStmt(stmt *chparser.InsertStmt) ast.Node { + insert := &ast.InsertStmt{ + Relation: c.convertTableExprToRangeVar(stmt.Table), + Cols: c.convertColumnNames(stmt.ColumnNames), + ReturningList: &ast.List{}, + } + + // Handle VALUES + if len(stmt.Values) > 0 { + insert.SelectStmt = &ast.SelectStmt{ + FromClause: &ast.List{}, + TargetList: &ast.List{}, + ValuesLists: c.convertValues(stmt.Values), + } + } + + // Handle INSERT INTO ... SELECT + if stmt.SelectExpr != nil { + insert.SelectStmt = c.convert(stmt.SelectExpr) + } + + return insert +} + +func (c *cc) convertTableExprToRangeVar(expr chparser.Expr) *ast.RangeVar { + if tableIdent, ok := expr.(*chparser.TableIdentifier); ok { + return c.convertTableIdentifier(tableIdent) + } + if ident, ok := expr.(*chparser.Ident); ok { + name := identifier(ident.Name) + return &ast.RangeVar{ + Relname: &name, + Location: int(ident.Pos()), + } + } + return &ast.RangeVar{} +} + +func (c *cc) convertColumnNames(colNames *chparser.ColumnNamesExpr) *ast.List { + if colNames == nil { + return &ast.List{} + } + + list := &ast.List{Items: []ast.Node{}} + for _, col := range colNames.ColumnNames { + // ColumnNames contains NestedIdentifier which has pointers + // Convert to ResTarget with ColumnRef so the compiler can resolve types properly + var colName string + if col.Ident != nil { + colName = identifier(col.Ident.Name) + } else if col.DotIdent != nil { + colName = identifier(col.DotIdent.Name) + } + + if colName != "" { + // Create a ResTarget with a ColumnRef that the compiler can resolve + // This allows type inference to work properly for INSERT parameters + resTarget := &ast.ResTarget{ + Name: &colName, + Val: &ast.ColumnRef{ + Fields: &ast.List{ + Items: []ast.Node{ + &ast.String{Str: colName}, + }, + }, + }, + } + list.Items = append(list.Items, resTarget) + } + } + return list +} + +func (c *cc) convertValues(values []*chparser.AssignmentValues) *ast.List { + list := &ast.List{Items: []ast.Node{}} + for _, valueSet := range values { + inner := &ast.List{Items: []ast.Node{}} + for _, val := range valueSet.Values { + inner.Items = append(inner.Items, c.convert(val)) + } + list.Items = append(list.Items, inner) + } + return list +} + +func (c *cc) convertCreateTable(stmt *chparser.CreateTable) ast.Node { + if stmt == nil { + return &ast.TODO{} + } + + // Extract table name + var schema *string + var table *string + if stmt.Name != nil { + if stmt.Name.Database != nil { + dbName := identifier(stmt.Name.Database.Name) + schema = &dbName + } + if stmt.Name.Table != nil { + tableName := identifier(stmt.Name.Table.Name) + table = &tableName + } + } + + // If no schema/database specified, the table name might be in Name.Table or Name.Database + // In ClickHouse parser, a simple "users" goes into Database field, not Table + if table == nil && stmt.Name != nil && stmt.Name.Database != nil { + tableName := identifier(stmt.Name.Database.Name) + table = &tableName + schema = nil // No schema specified, will use default + } + + // Build TableName for CreateTableStmt + tableName := &ast.TableName{} + if schema != nil { + tableName.Schema = *schema + } + if table != nil { + tableName.Name = *table + } + + createStmt := &ast.CreateTableStmt{ + Name: tableName, + IfNotExists: stmt.IfNotExists, + } + + // Convert columns from TableSchema + if stmt.TableSchema != nil && len(stmt.TableSchema.Columns) > 0 { + cols := []*ast.ColumnDef{} + for _, col := range stmt.TableSchema.Columns { + if colDef, ok := col.(*chparser.ColumnDef); ok { + if converted, ok := c.convertColumnDef(colDef).(*ast.ColumnDef); ok { + cols = append(cols, converted) + } + } + } + createStmt.Cols = cols + } + + // Note: ClickHouse-specific features like ENGINE, ORDER BY, PARTITION BY, and SETTINGS + // are not stored in sqlc's CreateTableStmt as it's designed for PostgreSQL compatibility. + // These features are parsed but not preserved in the AST for now. + // In a full ClickHouse implementation, we might extend CreateTableStmt or create + // ClickHouse-specific statement types. + + return createStmt +} + +func (c *cc) convertCreateDatabase(stmt *chparser.CreateDatabase) ast.Node { + if stmt == nil { + return &ast.TODO{} + } + + var schemaName string + if stmt.Name != nil { + // Name is usually an Ident + if ident, ok := stmt.Name.(*chparser.Ident); ok { + schemaName = identifier(ident.Name) + } + } + + return &ast.CreateSchemaStmt{ + Name: &schemaName, + IfNotExists: stmt.IfNotExists, + } +} + +func (c *cc) convertDropStmt(stmt *chparser.DropStmt) ast.Node { + if stmt == nil { + return &ast.TODO{} + } + + // ClickHouse DROP statements are mostly structural (DROP TABLE, DROP DATABASE) + // sqlc doesn't have a dedicated DropStmt, so return TODO + // This is expected - DROP is a DDL statement not typically used in application queries + return &ast.TODO{} +} + +func (c *cc) convertAlterTable(stmt *chparser.AlterTable) ast.Node { + if stmt == nil { + return &ast.TODO{} + } + + // ClickHouse uses ALTER TABLE for modifications that would be UPDATE/DELETE in other DBs + // sqlc doesn't have dedicated support for ALTER TABLE modifications + // This is expected - ALTER TABLE is DDL, not typically used in application queries + return &ast.TODO{} +} + +func (c *cc) convertOptimizeStmt(stmt *chparser.OptimizeStmt) ast.Node { + if stmt == nil { + return &ast.TODO{} + } + + // OPTIMIZE is a ClickHouse-specific statement for maintenance + // Not a query statement that generates application code + return &ast.TODO{} +} + +func (c *cc) convertDescribeStmt(stmt *chparser.DescribeStmt) ast.Node { + if stmt == nil { + return &ast.TODO{} + } + + // DESCRIBE/DESC is a metadata query - useful for introspection but not + // typically used in application code generation workflows + return &ast.TODO{} +} + +func (c *cc) convertExplainStmt(stmt *chparser.ExplainStmt) ast.Node { + if stmt == nil { + return &ast.TODO{} + } + + // EXPLAIN is for query analysis, not application code + return &ast.TODO{} +} + +func (c *cc) convertShowStmt(stmt *chparser.ShowStmt) ast.Node { + if stmt == nil { + return &ast.TODO{} + } + + // SHOW is an introspection statement for metadata queries + // While it returns result sets, it's not typically code-generated + // Treating as TODO for now as it's not a primary use case + return &ast.TODO{} +} + +func (c *cc) convertTruncateTable(stmt *chparser.TruncateTable) ast.Node { + if stmt == nil { + return &ast.TODO{} + } + + // TRUNCATE is a DDL statement for deleting all rows from a table + // While executable, it's not typically generated as application code + // Treating as TODO for now as it's a maintenance operation + return &ast.TODO{} +} + +func (c *cc) convertIdent(id *chparser.Ident) ast.Node { + // Convert identifier to a ColumnRef (represents a column reference) + // An identifier in a SELECT or WHERE clause refers to a column, not a string literal + identName := identifier(id.Name) + + // Special case: * is represented as A_Star in sqlc AST + if identName == "*" { + return &ast.ColumnRef{ + Fields: &ast.List{ + Items: []ast.Node{ + &ast.A_Star{}, + }, + }, + Location: int(id.Pos()), + } + } + + return &ast.ColumnRef{ + Fields: &ast.List{ + Items: []ast.Node{ + &ast.String{Str: identName}, + }, + }, + Location: int(id.Pos()), + } +} + +func (c *cc) convertPath(path *chparser.Path) ast.Node { + // Path represents a qualified identifier like "table.column" or "schema.table" + // Convert it to a ColumnRef with multiple fields + if path == nil || len(path.Fields) == 0 { + return &ast.TODO{} + } + + fields := &ast.List{Items: []ast.Node{}} + for _, field := range path.Fields { + if field != nil { + fieldName := identifier(field.Name) + if fieldName == "*" { + fields.Items = append(fields.Items, &ast.A_Star{}) + } else { + fields.Items = append(fields.Items, &ast.String{Str: fieldName}) + } + } + } + + return &ast.ColumnRef{ + Fields: fields, + Location: int(path.Pos()), + } +} + +func (c *cc) convertColumnExpr(col *chparser.ColumnExpr) ast.Node { + // ColumnExpr wraps an expression (could be Ident, NestedIdentifier, etc.) + // Just convert the underlying expression + return c.convert(col.Expr) +} + +func (c *cc) convertFunctionExpr(fn *chparser.FunctionExpr) ast.Node { + // Convert function calls like COUNT(*), SUM(column), etc. + // Normalize function names to lowercase since ClickHouse function names are case-insensitive + originalFuncName := identifier(fn.Name.Name) + funcNameLower := normalizeFunctionName(originalFuncName) + + // Handle sqlc_* functions (converted from sqlc.* during preprocessing) + // Normalize back to sqlc.* schema.function format for proper AST representation + var schema string + var baseFuncName string + + if strings.HasPrefix(funcNameLower, "sqlc_") { + schema = "sqlc" + baseFuncName = strings.TrimPrefix(funcNameLower, "sqlc_") + } else { + baseFuncName = funcNameLower + } + + args := &ast.List{Items: []ast.Node{}} + var chArgs []*chparser.Expr // Keep original ClickHouse args for type analysis + if fn.Params != nil { + if fn.Params.Items != nil { + for _, item := range fn.Params.Items.Items { + chArgs = append(chArgs, &item) + args.Items = append(args.Items, c.convert(item)) + } + } + } + + // Handle special context-dependent ClickHouse functions + // For these functions, try to register them with the correct return type + c.handleSpecialFunctionTypes(funcNameLower, fn, chArgs) + + return &ast.FuncCall{ + Func: &ast.FuncName{ + Schema: schema, + Name: baseFuncName, + }, + Funcname: &ast.List{ + Items: []ast.Node{ + &ast.String{Str: funcNameLower}, + }, + }, + Args: args, + Location: int(fn.Pos()), + } +} + +// handleSpecialFunctionTypes handles ClickHouse functions with context-dependent return types +// funcName should already be normalized to lowercase via normalizeFunctionName +func (c *cc) handleSpecialFunctionTypes(funcName string, fn *chparser.FunctionExpr, chArgs []*chparser.Expr) { + switch funcName { + case "arrayjoin": + // arrayJoin(Array(T)) returns T (the element type) + if len(chArgs) > 0 { + // Try to extract element type from the array argument + elemType := c.extractArrayElementType(*chArgs[0]) + if elemType != "" { + c.registerFunctionInCatalog("arrayjoin", &ast.TypeName{Name: elemType}) + } + } + + case "argmin", "argmax": + // argMin/argMax return the type of their first argument + if len(chArgs) > 0 { + // Try to extract type from the first argument (the value being tracked) + argType := c.extractTypeFromChExpr(*chArgs[0]) + if argType != "" { + c.registerFunctionInCatalog(funcName, &ast.TypeName{Name: argType}) + } + } + } +} + +// extractTypeFromChExpr extracts a type from a ClickHouse expression +func (c *cc) extractTypeFromChExpr(expr chparser.Expr) string { + if expr == nil { + return "" + } + + switch e := expr.(type) { + case *chparser.ColumnExpr: + // ColumnExpr wraps another expression - extract from the inner expression + if e.Expr != nil { + return c.extractTypeFromChExpr(e.Expr) + } + + case *chparser.Path: + // Path like u.id + if len(e.Fields) >= 2 { + colRef := &ast.ColumnRef{ + Fields: &ast.List{ + Items: []ast.Node{ + &ast.String{Str: identifier(e.Fields[0].Name)}, + &ast.String{Str: identifier(e.Fields[1].Name)}, + }, + }, + } + return c.extractTypeFromColumnRef(colRef) + } else if len(e.Fields) == 1 { + // Single field - just the column name + colRef := &ast.ColumnRef{ + Fields: &ast.List{ + Items: []ast.Node{ + &ast.String{Str: identifier(e.Fields[0].Name)}, + }, + }, + } + return c.extractTypeFromColumnRef(colRef) + } + + case *chparser.Ident: + // Just an identifier + colRef := &ast.ColumnRef{ + Fields: &ast.List{ + Items: []ast.Node{ + &ast.String{Str: identifier(e.Name)}, + }, + }, + } + return c.extractTypeFromColumnRef(colRef) + + case *chparser.FunctionExpr: + // Handle function calls like Array(String), CAST(x AS String), etc. + return c.extractTypeFromFunctionCall(e) + + case *chparser.CastExpr: + // Handle CAST(expr AS Type) + if e.AsType != nil { + // AsType can be a StringLiteral or ColumnType + if stringLit, ok := e.AsType.(*chparser.StringLiteral); ok { + return mapClickHouseType(strings.ToLower(stringLit.Literal)) + } else if colType, ok := e.AsType.(chparser.ColumnType); ok { + return mapClickHouseType(strings.ToLower(colType.Type())) + } + } + + case *chparser.BinaryOperation: + // For :: operator (PostgreSQL-style cast), extract from right side + if string(e.Operation) == "::" { + if ident, ok := e.RightExpr.(*chparser.Ident); ok { + return mapClickHouseType(identifier(ident.Name)) + } + } + } + + return "" +} + +// extractTypeFromFunctionCall extracts the return type from a function call expression +// Handles Array(ElementType), CAST(expr AS Type), and other function patterns +func (c *cc) extractTypeFromFunctionCall(fn *chparser.FunctionExpr) string { + if fn == nil || fn.Name == nil { + return "" + } + + funcName := strings.ToLower(identifier(fn.Name.Name)) + + // Handle Array(ElementType) - returns Array of that element type + if funcName == "array" { + if fn.Params != nil && fn.Params.Items != nil && len(fn.Params.Items.Items) > 0 { + // Get the first parameter which should be the element type + elemType := c.extractTypeFromChExpr(fn.Params.Items.Items[0]) + if elemType != "" { + // Return as array type + return elemType + "[]" + } + } + } + + // Handle CAST(expr AS Type) or similar casting functions + if strings.Contains(funcName, "cast") { + if fn.Params != nil && fn.Params.Items != nil && len(fn.Params.Items.Items) > 0 { + // Last parameter might be the type, but this is complex + // Return empty to be safe + } + } + + return "" +} + +// extractArrayElementType extracts the element type from an array type or array expression +// For Array(T), returns T. For columns of Array(T) type, returns T. +func (c *cc) extractArrayElementType(expr chparser.Expr) string { + if expr == nil { + return "" + } + + // Use the general type extractor which now handles all these cases + colType := c.extractTypeFromChExpr(expr) + if colType != "" { + // If it's an array type, extract the element type + if strings.HasSuffix(colType, "[]") { + return strings.TrimSuffix(colType, "[]") + } + // Otherwise return as-is (might not be an array, but the caller will handle it) + return colType + } + + return "" +} + +func (c *cc) convertBinaryOperation(op *chparser.BinaryOperation) ast.Node { + // Special handling for :: (type cast) operator (PostgreSQL-style ClickHouse casting) + if string(op.Operation) == "::" { + // Extract the type from the right side + var typeName *ast.TypeName + if ident, ok := op.RightExpr.(*chparser.Ident); ok { + // The right side should be an identifier representing the type + typeStr := identifier(ident.Name) + mappedType := mapClickHouseType(typeStr) + // Strip trailing [] since we'll use ArrayBounds if needed + if strings.HasSuffix(mappedType, "[]") { + mappedType = strings.TrimSuffix(mappedType, "[]") + } + typeName = &ast.TypeName{ + Name: mappedType, + Names: &ast.List{Items: []ast.Node{NewIdentifier(mappedType)}}, + } + } else { + // Fallback to text if we can't determine the type + typeName = &ast.TypeName{ + Name: "text", + Names: &ast.List{Items: []ast.Node{NewIdentifier("text")}}, + } + } + + return &ast.TypeCast{ + Arg: c.convert(op.LeftExpr), + TypeName: typeName, + Location: int(op.Pos()), + } + } + + // Convert binary operations like =, !=, <, >, AND, OR, etc. + return &ast.A_Expr{ + Kind: ast.A_Expr_Kind(0), // Default kind + Name: &ast.List{ + Items: []ast.Node{ + &ast.String{Str: string(op.Operation)}, + }, + }, + Lexpr: c.convert(op.LeftExpr), + Rexpr: c.convert(op.RightExpr), + Location: int(op.Pos()), + } +} + +func (c *cc) convertNumberLiteral(num *chparser.NumberLiteral) ast.Node { + if num == nil || num.Literal == "" { + return &ast.A_Const{ + Val: &ast.Integer{Ival: 0}, + Location: 0, + } + } + + numStr := num.Literal + + // Try to parse as integer first + if !strings.ContainsAny(numStr, ".eE") { + // Integer literal + if ival, err := strconv.ParseInt(numStr, 10, 64); err == nil { + return &ast.A_Const{ + Val: &ast.Integer{Ival: ival}, + Location: int(num.Pos()), + } + } + } + + // Try to parse as float + if _, err := strconv.ParseFloat(numStr, 64); err == nil { + return &ast.A_Const{ + Val: &ast.Float{Str: numStr}, + Location: int(num.Pos()), + } + } + + // Fallback to integer 0 if parsing fails + return &ast.A_Const{ + Val: &ast.Integer{Ival: 0}, + Location: int(num.Pos()), + } +} + +func (c *cc) convertStringLiteral(str *chparser.StringLiteral) ast.Node { + // The ClickHouse parser's StringLiteral.Pos() returns the position of the first + // character after the opening quote. We need to adjust it to point to the opening + // quote itself for correct location tracking in rewrite.NamedParameters, which uses + // args[0].Pos() - 1 to find the opening paren position. + pos := int(str.Pos()) + if pos > 0 { + pos-- // Move from first char inside quote to the opening quote + } + return &ast.A_Const{ + Val: &ast.String{ + Str: str.Literal, + }, + Location: pos, + } +} + +func (c *cc) convertQueryParam(param *chparser.QueryParam) ast.Node { + // ClickHouse uses ? for parameters + c.paramCount += 1 + return &ast.ParamRef{ + Number: c.paramCount, + Location: int(param.Pos()), + Dollar: false, // ClickHouse uses ? notation, not $1 + } +} + +func (c *cc) convertNestedIdentifier(nested *chparser.NestedIdentifier) ast.Node { + // NestedIdentifier represents things like "database.table" or "table.column" + fields := &ast.List{Items: []ast.Node{}} + + if nested.Ident != nil { + fieldName := identifier(nested.Ident.Name) + if fieldName == "*" { + fields.Items = append(fields.Items, &ast.A_Star{}) + } else { + fields.Items = append(fields.Items, &ast.String{Str: fieldName}) + } + } + if nested.DotIdent != nil { + fieldName := identifier(nested.DotIdent.Name) + if fieldName == "*" { + fields.Items = append(fields.Items, &ast.A_Star{}) + } else { + fields.Items = append(fields.Items, &ast.String{Str: fieldName}) + } + } + + return &ast.ColumnRef{ + Fields: fields, + Location: int(nested.Pos()), + } +} + +// isClickHouseTypeNullable checks if a ClickHouse column type is nullable +// In ClickHouse, columns are non-nullable by default unless wrapped in Nullable(T) +func isClickHouseTypeNullable(colType chparser.ColumnType) bool { + if colType == nil { + return false + } + + // Check if it's a ComplexType (like Nullable(T), Array(T), etc.) + if ct, ok := colType.(*chparser.ComplexType); ok { + if ct.Name != nil { + typeName := ct.Name.String() + if strings.EqualFold(typeName, "Nullable") { + return true + } + } + } + + return false +} + +func (c *cc) convertColumnDef(col *chparser.ColumnDef) ast.Node { + if col == nil { + return &ast.TODO{} + } + + // Extract column name + var colName string + if col.Name != nil { + if col.Name.Ident != nil { + colName = identifier(col.Name.Ident.Name) + } else if col.Name.DotIdent != nil { + colName = identifier(col.Name.DotIdent.Name) + } + } + + // Convert column type + var typeName *ast.TypeName + if col.Type != nil { + typeName = c.convertColumnType(col.Type) + } + + // Extract array information from TypeName + arrayDims := 0 + if typeName != nil && typeName.ArrayBounds != nil { + arrayDims = len(typeName.ArrayBounds.Items) + } + + // In ClickHouse, columns are non-nullable by default. + // They become nullable only if explicitly wrapped in Nullable(T). + // The Nullable wrapper is unwrapped in convertColumnType(), so we need to + // check if the original type was Nullable to determine nullability. + isNullable := isClickHouseTypeNullable(col.Type) + + columnDef := &ast.ColumnDef{ + Colname: colName, + TypeName: typeName, + IsNotNull: !isNullable, + IsArray: arrayDims > 0, + ArrayDims: arrayDims, + } + + return columnDef +} + +func (c *cc) convertColumnType(colType chparser.ColumnType) *ast.TypeName { + if colType == nil { + return &ast.TypeName{ + Name: "text", + Names: &ast.List{Items: []ast.Node{NewIdentifier("text")}}, + } + } + + // Extract type name - ColumnType is an interface, get the string representation + typeName := colType.Type() + + // Handle ComplexType (e.g., LowCardinality(T), Array(T), Map(K,V), Nullable(T), etc.) + // For LowCardinality(T), extract T directly and discard the wrapper + // LowCardinality is a ClickHouse-specific optimization hint that doesn't affect + // the semantic type of the data, so we unwrap it at the engine level before + // it reaches the codegen layer. This prevents LowCardinality from leaking into + // sqlc's type system where it would have no meaning. + if complexType, ok := colType.(*chparser.ComplexType); ok { + if strings.EqualFold(typeName, "LowCardinality") && len(complexType.Params) > 0 { + innerColType := complexType.Params[0] + return c.convertColumnType(innerColType) + } + + // Handle Nullable(T) - unwrap and return inner type + // Nullability is tracked via the NotNull flag in ColumnDef, not the type itself + if strings.EqualFold(typeName, "Nullable") && len(complexType.Params) > 0 { + innerColType := complexType.Params[0] + return c.convertColumnType(innerColType) + } + + // Handle Map(K, V) types + if strings.EqualFold(typeName, "Map") && len(complexType.Params) >= 2 { + keyColType := complexType.Params[0] + valueColType := complexType.Params[1] + + // Get mapped type names + keyTypeName := keyColType.Type() + keyMappedType := mapClickHouseType(keyTypeName) + + valueTypeName := valueColType.Type() + valueMappedType := mapClickHouseType(valueTypeName) + + // Check if the key type is valid for a Go map + if !isValidMapKeyType(keyMappedType) { + // If key type is not valid, fall back to map[string]interface{} + return &ast.TypeName{ + Name: "map[string]interface{}", + Names: &ast.List{Items: []ast.Node{NewIdentifier("map[string]interface{}")}}, + } + } + + // Convert database type names to valid Go type names for map syntax + keyGoType := databaseTypeToGoType(keyMappedType) + valueGoType := databaseTypeToGoType(valueMappedType) + + // Return map[K]V representation + mapType := "map[" + keyGoType + "]" + valueGoType + return &ast.TypeName{ + Name: mapType, + Names: &ast.List{Items: []ast.Node{NewIdentifier(mapType)}}, + } + } + } + + // Check if this is an array type + lowerTypeName := strings.ToLower(typeName) + var arrayBounds *ast.List + if strings.HasPrefix(lowerTypeName, "array") { + // Array types need ArrayBounds to be set for proper array dimension handling + // Each array level adds one item to ArrayBounds + arrayBounds = &ast.List{ + Items: []ast.Node{&ast.A_Const{}}, // One item for 1D array + } + } + + // Map ClickHouse types to PostgreSQL-compatible types for sqlc + mappedType := mapClickHouseType(typeName) + + // Strip trailing [] from mappedType since we'll use ArrayBounds instead + if strings.HasSuffix(mappedType, "[]") { + mappedType = strings.TrimSuffix(mappedType, "[]") + } + + return &ast.TypeName{ + Name: mappedType, + Names: &ast.List{Items: []ast.Node{NewIdentifier(mappedType)}}, + ArrayBounds: arrayBounds, + } +} + +// extractArrayElementType extracts the element type from Array(ElementType) +// e.g., "array(string)" -> "string", "array(uint32)" -> "uint32" +func extractArrayElementType(chType string) string { + chType = strings.ToLower(chType) + // Find the content within parentheses + start := strings.Index(chType, "(") + end := strings.LastIndex(chType, ")") + if start != -1 && end != -1 && end > start { + // Extract content and handle nested types + content := chType[start+1 : end] + // Remove any extra whitespace and handle nested parentheses + return strings.TrimSpace(content) + } + // Fallback to "string" if we can't extract the type + return "string" +} + +// databaseTypeToGoType converts database type names to valid Go syntax type names +// This is used for generating map types which need valid Go type syntax +// e.g., "double precision" -> "float64", "text" -> "string" +func databaseTypeToGoType(dbType string) string { + // Strip any trailing [] for now and re-add later + isArray := strings.HasSuffix(dbType, "[]") + typeBase := dbType + if isArray { + typeBase = strings.TrimSuffix(dbType, "[]") + } + + // Map database types to Go types + goType := "" + switch typeBase { + // Numeric types + case "int8": + goType = "int8" + case "int16": + goType = "int16" + case "int32": + goType = "int32" + case "int64": + goType = "int64" + case "uint8": + goType = "uint8" + case "uint16": + goType = "uint16" + case "uint32": + goType = "uint32" + case "uint64": + goType = "uint64" + case "float32", "real": + goType = "float32" + case "float64", "double precision": + goType = "float64" + case "numeric": + goType = "string" // Decimals use string + // String types + case "text", "varchar", "char", "string": + goType = "string" + // Boolean + case "bool", "boolean": + goType = "bool" + // Date/Time + case "date", "date32", "datetime", "datetime64", "timestamp": + goType = "time.Time" + // UUID + case "uuid": + goType = "string" + // JSON + case "jsonb", "json": + goType = "[]byte" // JSON types as raw bytes + // Default + default: + goType = typeBase // Fall back to the original + } + + // Re-add the array suffix if present + if isArray { + return "[]" + goType + } + return goType +} + +// isValidMapKeyType checks if a Go type is valid as a map key +// In Go, valid map key types are technically arrays (comparable), but in ClickHouse +// context, we restrict map keys to practical, simple types only. +// We explicitly forbid: +// - Arrays/slices (too complex as keys) +// - Maps/nested maps (invalid in Go) +// - Unknown/complex types +func isValidMapKeyType(goType string) bool { + // Explicitly allow common scalar types + switch goType { + case "int8", "int16", "int32", "int64", + "uint8", "uint16", "uint32", "uint64", + "float32", "float64", "real", "double precision", + "bool", "boolean", + "text", "string", "varchar", "char", + "uuid", + "numeric": // decimal types + return true + } + + // Date/time types are comparable + switch goType { + case "date", "date32", "datetime", "datetime64", "timestamp": + return true + } + + // Any pointer type to a scalar is valid + if strings.HasPrefix(goType, "*") && !strings.HasPrefix(goType, "*[]") && !strings.HasPrefix(goType, "*map") { + return true + } + + // interface{} is technically valid (matches anything) + if goType == "interface{}" { + return true + } + + // Explicitly forbid arrays, slices, and maps - too complex as map keys + // Arrays with [] suffix + if strings.HasSuffix(goType, "[]") { + return false + } + + // Maps + if strings.HasPrefix(goType, "map[") { + return false + } + + // Default: assume invalid (unknown types) + return false +} + +// mapClickHouseType maps ClickHouse data types to PostgreSQL-compatible types +// that sqlc understands for Go code generation +func mapClickHouseType(chType string) string { + chType = strings.ToLower(chType) + + switch { + // Integer types (UInt variants - unsigned) + case strings.HasPrefix(chType, "uint8"): + return "uint8" + case strings.HasPrefix(chType, "uint16"): + return "uint16" + case strings.HasPrefix(chType, "uint32"): + return "uint32" + case strings.HasPrefix(chType, "uint64"): + return "uint64" + // Integer types (Int variants - signed) + case strings.HasPrefix(chType, "int8"): + return "int8" + case strings.HasPrefix(chType, "int16"): + return "int16" + case strings.HasPrefix(chType, "int32"): + return "int32" + case strings.HasPrefix(chType, "int64"): + return "int64" + case strings.HasPrefix(chType, "int128"): + return "numeric" + case strings.HasPrefix(chType, "int256"): + return "numeric" + + // Float types + case strings.HasPrefix(chType, "float32"): + return "real" + case strings.HasPrefix(chType, "float64"): + return "double precision" + + // Decimal types + case strings.HasPrefix(chType, "decimal"): + return "numeric" + + // String types + case chType == "string": + return "text" + case strings.HasPrefix(chType, "fixedstring"): + return "varchar" + + // Date/Time types + case chType == "date": + return "date" + case chType == "date32": + return "date" + case chType == "datetime": + return "timestamp" + case chType == "datetime64": + return "timestamp" + + // Boolean + case chType == "bool": + return "boolean" + + // UUID + case chType == "uuid": + return "uuid" + + // IP address types + case chType == "ipv4": + return "ipv4" + case chType == "ipv6": + return "ipv6" + + // Array types + case strings.HasPrefix(chType, "array"): + // Extract element type from Array(ElementType) + // e.g., "array(string)" -> extract "string" + elementType := extractArrayElementType(chType) + mappedElementType := mapClickHouseType(elementType) + return mappedElementType + "[]" + + // JSON types + case strings.Contains(chType, "json"): + return "jsonb" + + // Default fallback + default: + return "text" + } +} + +func (c *cc) convertOrderExpr(order *chparser.OrderExpr) ast.Node { + if order == nil { + return &ast.TODO{} + } + + sortBy := &ast.SortBy{ + Node: c.convert(order.Expr), + Location: int(order.Pos()), + } + + // Handle sort direction + switch order.Direction { + case "DESC": + sortBy.SortbyDir = ast.SortByDirDesc + case "ASC": + sortBy.SortbyDir = ast.SortByDirAsc + default: + sortBy.SortbyDir = ast.SortByDirDefault + } + + return sortBy +} + +func (c *cc) convertPlaceHolder(ph *chparser.PlaceHolder) ast.Node { + // PlaceHolder is ClickHouse's ? parameter + c.paramCount += 1 + return &ast.ParamRef{ + Number: c.paramCount, + Location: int(ph.Pos()), + Dollar: false, // ClickHouse uses ? notation, not $1 + } +} + +func (c *cc) convertJoinTableExpr(jte *chparser.JoinTableExpr) ast.Node { + if jte == nil || jte.Table == nil { + return &ast.TODO{} + } + // JoinTableExpr is a wrapper around TableExpr with optional modifiers + // Just extract the underlying table expression + return c.convertTableExpr(jte.Table) +} + +// convertCastExpr converts CAST expressions like CAST(column AS type) +func (c *cc) convertCastExpr(castExpr *chparser.CastExpr) ast.Node { + if castExpr == nil { + return &ast.TODO{} + } + + // Convert the expression to be cast + expr := c.convert(castExpr.Expr) + + // Convert the target type - AsType is an Expr, need to extract type information + var typeName *ast.TypeName + if castExpr.AsType != nil { + // The AsType can be: ColumnType, Ident, or StringLiteral + if stringLit, ok := castExpr.AsType.(*chparser.StringLiteral); ok { + // CAST(x AS 'String') - extract type from string literal + typeStr := strings.ToLower(stringLit.Literal) + mappedType := mapClickHouseType(typeStr) + // Strip trailing [] since we'll use ArrayBounds if needed + if strings.HasSuffix(mappedType, "[]") { + mappedType = strings.TrimSuffix(mappedType, "[]") + } + typeName = &ast.TypeName{ + Name: mappedType, + Names: &ast.List{Items: []ast.Node{NewIdentifier(mappedType)}}, + } + } else if colType, ok := castExpr.AsType.(chparser.ColumnType); ok { + // CAST(x AS ColumnType) - standard form + typeName = c.convertColumnType(colType) + } else if ident, ok := castExpr.AsType.(*chparser.Ident); ok { + // Fallback: treat the identifier as a type name + typeStr := identifier(ident.Name) + mappedType := mapClickHouseType(typeStr) + // Strip trailing [] since we'll use ArrayBounds if needed + if strings.HasSuffix(mappedType, "[]") { + mappedType = strings.TrimSuffix(mappedType, "[]") + } + typeName = &ast.TypeName{ + Name: mappedType, + Names: &ast.List{Items: []ast.Node{NewIdentifier(mappedType)}}, + } + } else { + // Unknown type, default to text + typeName = &ast.TypeName{ + Name: "text", + Names: &ast.List{Items: []ast.Node{NewIdentifier("text")}}, + } + } + } + + return &ast.TypeCast{ + Arg: expr, + TypeName: typeName, + Location: int(castExpr.Pos()), + } +} + +// convertCaseExpr converts CASE expressions +func (c *cc) convertCaseExpr(caseExpr *chparser.CaseExpr) ast.Node { + if caseExpr == nil { + return &ast.TODO{} + } + + // Convert CASE input expression (if present) + var arg ast.Node + if caseExpr.Expr != nil { + arg = c.convert(caseExpr.Expr) + } + + // Convert WHEN clauses + args := &ast.List{Items: []ast.Node{}} + + for _, when := range caseExpr.Whens { + if when != nil { + // Convert WHEN condition + whenExpr := c.convert(when.When) + args.Items = append(args.Items, whenExpr) + + // Convert THEN result + thenExpr := c.convert(when.Then) + args.Items = append(args.Items, thenExpr) + } + } + + // Convert ELSE clause (if present) + var elseExpr ast.Node + if caseExpr.Else != nil { + elseExpr = c.convert(caseExpr.Else) + } + + return &ast.CaseExpr{ + Arg: arg, + Args: args, + Defresult: elseExpr, + Location: int(caseExpr.Pos()), + } +} + +// convertWindowFunctionExpr converts window function expressions +func (c *cc) convertWindowFunctionExpr(winExpr *chparser.WindowFunctionExpr) ast.Node { + if winExpr == nil { + return &ast.TODO{} + } + + // Convert the underlying function + funcCall := c.convertFunctionExpr(winExpr.Function) + + // Convert OVER clause (OverExpr contains the window specification) + var overClause *ast.WindowDef + if winExpr.OverExpr != nil { + // OverExpr might be a WindowExpr or other expression + if winDef, ok := winExpr.OverExpr.(*chparser.WindowExpr); ok { + overClause = c.convertWindowDef(winDef) + } + } + + // Wrap the function call in a window context + if funcCall, ok := funcCall.(*ast.FuncCall); ok { + funcCall.Over = overClause + return funcCall + } + + return funcCall +} + +// convertWindowDef converts window definition +func (c *cc) convertWindowDef(winDef *chparser.WindowExpr) *ast.WindowDef { + if winDef == nil { + return nil + } + + windowDef := &ast.WindowDef{ + Location: int(winDef.Pos()), + } + + // Convert PARTITION BY + if winDef.PartitionBy != nil && winDef.PartitionBy.Expr != nil { + windowDef.PartitionClause = &ast.List{Items: []ast.Node{}} + windowDef.PartitionClause.Items = append(windowDef.PartitionClause.Items, c.convert(winDef.PartitionBy.Expr)) + } + + // Convert ORDER BY + if winDef.OrderBy != nil { + windowDef.OrderClause = c.convertOrderByClause(winDef.OrderBy) + } + + return windowDef +} + +// convertIsNullExpr converts IS NULL expressions +func (c *cc) convertIsNullExpr(isNull *chparser.IsNullExpr) ast.Node { + if isNull == nil { + return &ast.TODO{} + } + + return &ast.NullTest{ + Arg: c.convert(isNull.Expr), + Nulltesttype: ast.NullTestType(0), // IS_NULL = 0 + Location: int(isNull.Pos()), + } +} + +// convertIsNotNullExpr converts IS NOT NULL expressions +func (c *cc) convertIsNotNullExpr(isNotNull *chparser.IsNotNullExpr) ast.Node { + if isNotNull == nil { + return &ast.TODO{} + } + + return &ast.NullTest{ + Arg: c.convert(isNotNull.Expr), + Nulltesttype: ast.NullTestType(1), // IS_NOT_NULL = 1 + Location: int(isNotNull.Pos()), + } +} + +// convertUnaryExpr converts unary expressions (like NOT, negation) +func (c *cc) convertUnaryExpr(unary *chparser.UnaryExpr) ast.Node { + if unary == nil { + return &ast.TODO{} + } + + // Kind is a TokenKind (string) + kindStr := string(unary.Kind) + + return &ast.A_Expr{ + Kind: ast.A_Expr_Kind(1), // AEXPR_OP_ANY or AEXPR_OP + Name: &ast.List{ + Items: []ast.Node{ + &ast.String{Str: kindStr}, + }, + }, + Rexpr: c.convert(unary.Expr), + Location: int(unary.Pos()), + } +} + +// convertMapLiteral converts map/dictionary literals +func (c *cc) convertMapLiteral(mapLit *chparser.MapLiteral) ast.Node { + if mapLit == nil { + return &ast.TODO{} + } + + // ClickHouse uses map literals like {'key': value, 'key2': value2} + // Convert to a list of key-value pairs + items := &ast.List{Items: []ast.Node{}} + + for _, kv := range mapLit.KeyValues { + // Key is a StringLiteral value, need to convert it to a pointer + keyLit := &kv.Key + // Add key + items.Items = append(items.Items, c.convert(keyLit)) + // Add value + if kv.Value != nil { + items.Items = append(items.Items, c.convert(kv.Value)) + } + } + + // Return as a generic constant list (maps aren't directly supported in sqlc AST) + return &ast.A_Const{ + Val: items, + Location: int(mapLit.Pos()), + } +} + +// convertParamExprList converts a parenthesized expression list to its content +// ParamExprList represents (expr1, expr2, ...) or (expr) +// We convert it by extracting and converting the items +func (c *cc) convertParamExprList(paramList *chparser.ParamExprList) ast.Node { + if paramList == nil || paramList.Items == nil { + return &ast.TODO{} + } + + // If there's only one item, return that directly (unwrap the parens) + if len(paramList.Items.Items) == 1 { + return c.convert(paramList.Items.Items[0]) + } + + // If there are multiple items, convert them all and wrap in a list + // This shouldn't normally happen in a WHERE clause, but handle it just in case + items := &ast.List{Items: []ast.Node{}} + for _, item := range paramList.Items.Items { + if colExpr, ok := item.(*chparser.ColumnExpr); ok { + items.Items = append(items.Items, c.convert(colExpr.Expr)) + } else { + items.Items = append(items.Items, c.convert(item)) + } + } + return items +} + +// mergeArrayJoinIntoFrom integrates ARRAY JOIN into the FROM clause as a special join +// ClickHouse's ARRAY JOIN is unique - it "unfolds" arrays into rows +// We represent it as a cross join with special handling +func (c *cc) mergeArrayJoinIntoFrom(fromClause *ast.List, arrayJoin *chparser.ArrayJoinClause) *ast.List { + if fromClause == nil { + fromClause = &ast.List{Items: []ast.Node{}} + } + + // Convert the ARRAY JOIN expression to a join node + arrayJoinNode := c.convertArrayJoinClause(arrayJoin) + + // Add the ARRAY JOIN to the FROM clause + if arrayJoinNode != nil { + fromClause.Items = append(fromClause.Items, arrayJoinNode) + } + + return fromClause +} + +// convertArrayJoinClause converts ClickHouse ARRAY JOIN to sqlc AST +// ARRAY JOIN unfolds arrays into rows - we represent it as a RangeSubselect (derived table) +// This creates a synthetic SELECT that the compiler can understand without special handling +func (c *cc) convertArrayJoinClause(arrayJoin *chparser.ArrayJoinClause) ast.Node { + if arrayJoin == nil { + return nil + } + + // The Expr field contains the array expression(s) to unfold + // It can be: + // - A single column reference (e.g., "tags") + // - A list of expressions with aliases (e.g., "ParsedParams AS pp" or "a AS x, b AS y") + + // Check if it's a ColumnExprList (multiple array expressions) + if exprList, ok := arrayJoin.Expr.(*chparser.ColumnExprList); ok && len(exprList.Items) > 0 { + // Multiple array expressions - create synthetic SELECT for each + colnames := c.collectArrayJoinColnames(exprList.Items) + if len(colnames) == 0 { + return nil + } + return c.createArrayJoinSubquery(colnames) + } + + // Single expression + colnames := c.extractArrayJoinColname(arrayJoin.Expr) + if colnames == nil { + return nil + } + return c.createArrayJoinSubquery([]ast.Node{colnames}) +} + +// collectArrayJoinColnames extracts all column names from ARRAY JOIN expressions +// Only adds non-nil colnames to the returned list +func (c *cc) collectArrayJoinColnames(items []chparser.Expr) []ast.Node { + var colnames []ast.Node + for _, expr := range items { + colname := c.extractArrayJoinColname(expr) + // Only add non-nil colnames + if colname != nil { + colnames = append(colnames, colname) + } + } + return colnames +} + +// extractArrayJoinColname extracts the column name from an ARRAY JOIN item +// Returns a String AST node representing the column name +func (c *cc) extractArrayJoinColname(expr chparser.Expr) ast.Node { + if expr == nil { + return nil + } + + // Handle ColumnExpr (most common case) + if colExpr, ok := expr.(*chparser.ColumnExpr); ok { + if colExpr.Alias != nil { + // Use the explicit alias + return &ast.String{Str: identifier(colExpr.Alias.Name)} + } + // Extract name from the expression itself + if colExpr.Expr != nil { + return c.extractNameFromExpr(colExpr.Expr) + } + } + + // Handle other expression types + return c.extractNameFromExpr(expr) +} + +// extractNameFromExpr extracts a name from an arbitrary expression +func (c *cc) extractNameFromExpr(expr chparser.Expr) ast.Node { + if expr == nil { + return nil + } + + // Path expression (e.g., u.tags) + if path, ok := expr.(*chparser.Path); ok && len(path.Fields) > 0 { + lastName := path.Fields[len(path.Fields)-1].Name + return &ast.String{Str: identifier(lastName)} + } + + // Simple identifier + if ident, ok := expr.(*chparser.Ident); ok { + return &ast.String{Str: identifier(ident.Name)} + } + + return nil +} + +// createArrayJoinSubquery creates a synthetic RangeSubselect representing ARRAY JOIN output +// We create a synthetic SelectStmt with ResTargets that have the column names +// The compiler will evaluate this SelectStmt normally via outputColumns logic +func (c *cc) createArrayJoinSubquery(colnames []ast.Node) ast.Node { + // Filter out any nil column names + validColnames := []ast.Node{} + for _, colname := range colnames { + if colname != nil { + validColnames = append(validColnames, colname) + } + } + + if len(validColnames) == 0 { + return nil + } + + // Create a synthetic SELECT statement with the column names + // SELECT colname1, colname2, ... + // This allows the compiler's existing outputColumns logic to extract the columns + targetList := &ast.List{Items: []ast.Node{}} + for _, colname := range validColnames { + if strNode, ok := colname.(*ast.String); ok { + // Create a ResTarget for each column name + // Use A_Const with a String value - this doesn't require table lookups + colName := strNode.Str + targetList.Items = append(targetList.Items, &ast.ResTarget{ + Name: &colName, + Val: &ast.A_Const{ + Val: &ast.String{Str: colName}, + }, + }) + } + } + + // Create synthetic SelectStmt for this ARRAY JOIN + // Initialize with empty Lists to avoid nil pointer dereferences + syntheticSelect := &ast.SelectStmt{ + TargetList: targetList, + FromClause: &ast.List{}, + GroupClause: &ast.List{}, + WindowClause: &ast.List{}, + SortClause: &ast.List{}, + } + + // Wrap in RangeSubselect (derived table) + // The compiler will call outputColumns on this subquery to get the columns + return &ast.RangeSubselect{ + Lateral: false, // ARRAY JOIN is not a lateral subquery + Subquery: syntheticSelect, + Alias: nil, // No need for Colnames since we have a proper Subquery + } +} + +// convertArrayJoinItemToFunc converts a single ARRAY JOIN item to a FuncCall and optional colnames +// Returns the FuncCall and a list of column name nodes (StringNodes) for the alias(es) +func (c *cc) convertArrayJoinItemToFunc(expr chparser.Expr) (*ast.FuncCall, []ast.Node) { + if expr == nil { + return nil, nil + } + + var arrayExpr ast.Node + var colnames []ast.Node + + // Handle ColumnExpr (which can have an alias) - this is what ARRAY JOIN produces + if colExpr, ok := expr.(*chparser.ColumnExpr); ok { + // Extract the expression and alias + arrayExpr = c.convert(colExpr.Expr) + + if colExpr.Alias != nil { + columnName := identifier(colExpr.Alias.Name) + colnames = append(colnames, &ast.String{Str: columnName}) + } + } else if selectItem, ok := expr.(*chparser.SelectItem); ok { + // Also handle SelectItem for compatibility + arrayExpr = c.convert(selectItem.Expr) + + if selectItem.Alias != nil { + columnName := identifier(selectItem.Alias.Name) + colnames = append(colnames, &ast.String{Str: columnName}) + } + } else { + // Direct column reference without alias + arrayExpr = c.convert(expr) + } + + if arrayExpr == nil { + return nil, nil + } + + // Create a function call representing the array unnesting + // We use a special function name "arrayjoin" to indicate this is an ARRAY JOIN + funcCall := &ast.FuncCall{ + Func: &ast.FuncName{ + Name: "arrayjoin", + }, + Args: &ast.List{ + Items: []ast.Node{arrayExpr}, + }, + } + + return funcCall, colnames +} + +// convertIndexOperation converts array/tuple indexing like arr[1] or tuple[2] +func (c *cc) convertIndexOperation(idxOp *chparser.IndexOperation) ast.Node { + if idxOp == nil { + return &ast.TODO{} + } + + // Convert the index expression + idx := c.convert(idxOp.Index) + + // Create an A_Indices node representing array/tuple indexing + // IsSlice is false for single-element access like arr[1] + // It would be true for range access like arr[1:5] (if supported) + return &ast.A_Indices{ + IsSlice: false, + Lidx: idx, + Uidx: nil, // No upper index for single-element access + } +} + +// convertArrayParamList converts array literals like [1, 2, 3] or ['a', 'b'] +func (c *cc) convertArrayParamList(arrList *chparser.ArrayParamList) ast.Node { + if arrList == nil || arrList.Items == nil { + return &ast.TODO{} + } + + // Convert each item in the array + items := &ast.List{Items: []ast.Node{}} + for _, item := range arrList.Items.Items { + // Each item is a ColumnExpr, extract the underlying expression + converted := c.convert(item) + items.Items = append(items.Items, converted) + } + + // Return an A_ArrayExpr representing the array literal + return &ast.A_ArrayExpr{ + Elements: items, + Location: int(arrList.Pos()), + } +} + +// convertTableFunctionExpr converts table functions like SELECT * FROM numbers(10) +// These are ClickHouse-specific functions that return table-like results +func (c *cc) convertTableFunctionExpr(tfn *chparser.TableFunctionExpr) ast.Node { + if tfn == nil { + return &ast.TODO{} + } + + // TableFunctionExpr has a Name (which is an Expr) and Args (TableArgListExpr) + // We convert it to a RangeFunction to represent a function in FROM clause context + + // Get the function name by converting the Name expression + // Usually it's a simple Ident, but could be more complex + var funcName string + if tfn.Name != nil { + if ident, ok := tfn.Name.(*chparser.Ident); ok { + funcName = identifier(ident.Name) + } else { + funcName = "table_function" + } + } else { + funcName = "unknown" + } + + // Convert arguments if present + args := &ast.List{Items: []ast.Node{}} + if tfn.Args != nil && tfn.Args.Args != nil { + for _, arg := range tfn.Args.Args { + args.Items = append(args.Items, c.convert(arg)) + } + } + + // Create a FuncCall representing the table function + funcCall := &ast.FuncCall{ + Func: &ast.FuncName{ + Name: funcName, + }, + Args: args, + } + + // Wrap in a RangeFunction to represent it in FROM clause context + return &ast.RangeFunction{ + Functions: &ast.List{ + Items: []ast.Node{funcCall}, + }, + } +} + +// convertTernaryOperation converts ternary conditional expressions +// These are similar to CASE expressions but use a different structure +func (c *cc) convertTernaryOperation(ternary *chparser.TernaryOperation) ast.Node { + if ternary == nil { + return &ast.TODO{} + } + + // Convert to a CaseExpr structure for consistency with sqlc AST + // A ternary operation is: condition ? true_expr : false_expr + // This maps to: CASE WHEN condition THEN true_expr ELSE false_expr END + + // Convert the condition and expressions + condition := c.convert(ternary.Condition) + trueExpr := c.convert(ternary.TrueExpr) + falseExpr := c.convert(ternary.FalseExpr) + + return &ast.CaseExpr{ + Arg: nil, // No CASE expr, just WHEN conditions + Args: &ast.List{ + Items: []ast.Node{ + condition, + trueExpr, + }, + }, + Defresult: falseExpr, // ELSE clause + Location: int(ternary.Pos()), + } +} + +// convertCreateView converts CREATE VIEW statements +// ClickHouse views are similar to other SQL databases but may have specific features +func (c *cc) convertCreateView(view *chparser.CreateView) ast.Node { + if view == nil { + return &ast.TODO{} + } + + // Extract view name from TableIdentifier + var viewName string + if view.Name != nil { + if view.Name.Table != nil { + viewName = identifier(view.Name.Table.Name) + } + } + + // Convert the SELECT query from SubQuery + var selectStmt ast.Node + if view.SubQuery != nil && view.SubQuery.Select != nil { + selectStmt = c.convert(view.SubQuery.Select) + } + + // For now, return a TODO since sqlc AST doesn't have a specific View representation + // The SelectStmt is converted for reference + _ = selectStmt + _ = viewName + + return &ast.TODO{} +} + +// convertCreateMaterializedView converts CREATE MATERIALIZED VIEW statements +// These are ClickHouse-specific materialized views +func (c *cc) convertCreateMaterializedView(matView *chparser.CreateMaterializedView) ast.Node { + if matView == nil { + return &ast.TODO{} + } + + // Extract view name from TableIdentifier + var viewName string + if matView.Name != nil { + if matView.Name.Table != nil { + viewName = identifier(matView.Name.Table.Name) + } + } + + // Convert the SELECT query from SubQuery + var selectStmt ast.Node + if matView.SubQuery != nil && matView.SubQuery.Select != nil { + selectStmt = c.convert(matView.SubQuery.Select) + } + + // For now, return a TODO since sqlc AST doesn't have a specific MaterializedView representation + // The SelectStmt is converted for reference + _ = selectStmt + _ = viewName + + return &ast.TODO{} +} diff --git a/internal/engine/clickhouse/parse.go b/internal/engine/clickhouse/parse.go new file mode 100644 index 0000000000..1ee9050b50 --- /dev/null +++ b/internal/engine/clickhouse/parse.go @@ -0,0 +1,402 @@ +package clickhouse + +import ( + "errors" + "fmt" + "io" + "regexp" + "strings" + + chparser "github.com/AfterShip/clickhouse-sql-parser/parser" + + "github.com/sqlc-dev/sqlc/internal/source" + "github.com/sqlc-dev/sqlc/internal/sql/ast" + "github.com/sqlc-dev/sqlc/internal/sql/catalog" + "github.com/sqlc-dev/sqlc/internal/sql/sqlerr" +) + +func NewParser() *Parser { + return &Parser{} +} + +type Parser struct { + // catalog is set by the Compiler after schema parsing is complete + // It allows the parser to register context-dependent functions + Catalog interface{} +} + +// preprocessNamedParameters converts sqlc named parameter syntax to valid ClickHouse syntax +// that the parser can handle. This allows sqlc.arg(), sqlc.narg(), and sqlc.slice() syntax +// to be used in queries by converting the dot notation to underscore notation, which the +// ClickHouse parser can recognize as a function call. +// +// Conversions: +// - sqlc.arg('name') → sqlc_arg('name') +// - sqlc.narg('name') → sqlc_narg('name') +// - sqlc.slice('name') → sqlc_slice('name') +// +// The original SQL is preserved in the compiler, so rewrite.NamedParameters can still +// find and process the original named parameter syntax. The converter normalizes +// sqlc_* function names back to sqlc.* schema.function format in the AST. +func preprocessNamedParameters(sql string) string { + // Convert sqlc.arg/narg/slice to sqlc_arg/narg/slice + // This makes them valid function names in ClickHouse parser + // Using same-length replacement (sqlc. = 5 chars, sqlc_ = 5 chars) preserves positions + funcPattern := regexp.MustCompile(`sqlc\.(arg|narg|slice)`) + sql = funcPattern.ReplaceAllString(sql, "sqlc_$1") + + return sql +} + +func (p *Parser) Parse(r io.Reader) ([]ast.Statement, error) { + blob, err := io.ReadAll(r) + if err != nil { + return nil, err + } + + originalSQL := string(blob) + + // Preprocess to replace named parameter syntax with valid ClickHouse syntax + processedSQL := preprocessNamedParameters(originalSQL) + + chp := chparser.NewParser(processedSQL) + stmtNodes, err := chp.ParseStmts() + if err != nil { + return nil, normalizeErr(err) + } + + // Find all -- name: comments in the original SQL + nameCommentPositions := findNameComments(originalSQL) + + // Clone the catalog for this parse operation to isolate function registrations + // (like arrayJoin, argMin, etc.) from other queries + var clonedCatalog *catalog.Catalog + if p.Catalog != nil { + cat, ok := p.Catalog.(*catalog.Catalog) + if !ok { + return nil, fmt.Errorf("invalid catalog type: expected *catalog.Catalog, got %T", p.Catalog) + } + clonedCatalog = cat.Clone() + } + + var stmts []ast.Statement + for i := range stmtNodes { + converter := &cc{catalog: clonedCatalog} + out := converter.convert(stmtNodes[i]) + + var statementStart, statementEnd int + + // Check if we're processing a file with -- name: comments (queries.sql) + // or without them (schema.sql) + if len(nameCommentPositions) == len(stmtNodes) { + // We have a -- name: comment for each statement (queries file) + statementStart = nameCommentPositions[i] + + if i+1 < len(nameCommentPositions) { + statementEnd = nameCommentPositions[i+1] + } else { + statementEnd = len(originalSQL) + } + } else { + // No name comments, or mismatch (schema file or mixed) + // Use the parser's positions, but try to find better boundaries + processedStmtPos := int(stmtNodes[i].Pos()) + if processedStmtPos > 0 { + processedStmtPos -= 1 + } + + originalStmtPos := findOriginalPosition(originalSQL, processedSQL, processedStmtPos) + statementStart = findStatementStart(originalSQL, originalStmtPos) + + if i+1 < len(stmtNodes) { + nextProcessedStmtPos := int(stmtNodes[i+1].Pos()) + if nextProcessedStmtPos > 0 { + nextProcessedStmtPos -= 1 + } + nextOriginalStmtPos := findOriginalPosition(originalSQL, processedSQL, nextProcessedStmtPos) + statementEnd = findStatementStart(originalSQL, nextOriginalStmtPos) + } else { + statementEnd = len(originalSQL) + } + } + + // Bounds check + if statementStart < 0 || statementStart >= len(originalSQL) || statementEnd > len(originalSQL) || statementStart >= statementEnd { + continue + } + + segment := originalSQL[statementStart:statementEnd] + // Trim trailing whitespace but preserve the content + segment = strings.TrimRight(segment, " \t\r\n") + + stmts = append(stmts, ast.Statement{ + Raw: &ast.RawStmt{ + Stmt: out, + StmtLocation: statementStart, + StmtLen: len(segment), + }, + }) + } + + return stmts, nil +} + +// findNameComments finds all positions of -- name: comments in the SQL +// Returns a slice of positions where each -- name: comment starts +func findNameComments(sql string) []int { + var positions []int + lines := strings.Split(sql, "\n") + currentPos := 0 + + for _, line := range lines { + trimmed := strings.TrimSpace(line) + // Check if this line contains a -- name: comment + if strings.HasPrefix(trimmed, "--") && strings.Contains(trimmed, "name:") { + // Find the actual position of the start of this line (not trimmed) + lineStart := currentPos + // Walk backwards to find any leading whitespace + for lineStart < currentPos+len(line) && (sql[lineStart] == ' ' || sql[lineStart] == '\t') { + lineStart++ + } + // Actually, we want the start of the line including whitespace + positions = append(positions, currentPos) + } + // Move to next line (including the \n character) + currentPos += len(line) + 1 + } + + return positions +} + +// findOriginalPosition maps a position in processedSQL back to the original SQL +// Preprocessing only changes sqlc.arg to sqlc_arg (same length), so positions are mostly 1:1 +func findOriginalPosition(originalSQL, processedSQL string, processedPos int) int { + // Since sqlc. → sqlc_ is same length (5 chars), positions are virtually identical + // Just ensure we don't go out of bounds + if processedPos >= len(originalSQL) { + return len(originalSQL) + } + return processedPos +} + +// findStatementStart finds the start of a statement in SQL, including preceding -- name: annotation +func findStatementStart(sql string, stmtPos int) int { + if stmtPos <= 0 { + return 0 + } + + // Walk backwards through lines to find the -- name: annotation + // The stmtPos usually points to the SELECT/INSERT/etc line, but we need to include + // the -- name: comment that precedes it. + + currentPos := stmtPos + + // Keep walking backwards through lines + for currentPos > 0 { + // Find the start of the current line + lineStart := currentPos - 1 + for lineStart >= 0 && sql[lineStart] != '\n' { + lineStart-- + } + lineStart++ // Move past the newline (or stay at 0) + + // Extract the line content, skipping leading whitespace + checkPos := lineStart + for checkPos < len(sql) && (sql[checkPos] == ' ' || sql[checkPos] == '\t') { + checkPos++ + } + + // Find the end of this line + lineEnd := checkPos + for lineEnd < len(sql) && sql[lineEnd] != '\n' { + lineEnd++ + } + + if checkPos < lineEnd { + lineText := sql[checkPos:lineEnd] + + // Check if this line is a -- name: annotation + if strings.HasPrefix(lineText, "--") && strings.Contains(lineText, "name:") { + // Found it! Return the start of this line + return lineStart + } + + // Check if this is a non-empty, non-comment line + // If we find actual SQL before finding the -- name: comment, stop + if len(strings.TrimSpace(lineText)) > 0 && !strings.HasPrefix(lineText, "--") { + // This is SQL content, stop searching backwards + break + } + } + + // Move to the previous line + if lineStart == 0 { + break + } + currentPos = lineStart - 1 + } + + // Didn't find a -- name: annotation, return the original position + return stmtPos +} + +func min(a, b int) int { + if a < b { + return a + } + return b +} + +func max(a, b int) int { + if a > b { + return a + } + return b +} + +// normalizeErr converts ClickHouse parser errors to sqlc error format +func normalizeErr(err error) error { + if err == nil { + return err + } + + // For now, wrap the error as a generic syntax error + // ClickHouse parser may provide better error information in future versions + return &sqlerr.Error{ + Message: "syntax error", + Err: errors.New(err.Error()), + Line: 1, + Column: 1, + } +} + +// CommentSyntax returns the comment syntax for ClickHouse +// ClickHouse supports: +// - Line comments: -- (with optional space after) +// - Block comments: /* */ +func (p *Parser) CommentSyntax() source.CommentSyntax { + return source.CommentSyntax{ + Dash: true, + SlashStar: true, + } +} + +// IsReservedKeyword checks if a string is a ClickHouse reserved keyword +func (p *Parser) IsReservedKeyword(s string) bool { + return isReservedKeyword(strings.ToUpper(s)) +} + +// ClickHouse reserved keywords +// Based on https://clickhouse.com/docs/sql-reference/syntax#keywords +var reservedKeywords = map[string]bool{ + "ALTER": true, + "AND": true, + "ARRAY": true, + "AS": true, + "ASCENDING": true, + "ASOF": true, + "BETWEEN": true, + "BY": true, + "CASE": true, + "CAST": true, + "CHECK": true, + "CLUSTER": true, + "CODEC": true, + "COLLATE": true, + "COLUMN": true, + "CONSTRAINT": true, + "CREATE": true, + "CROSS": true, + "CUBE": true, + "CURRENT": true, + "DATABASE": true, + "DAY": true, + "DEDUPLICATE": true, + "DEFAULT": true, + "DEFINER": true, + "DELETE": true, + "DESC": true, + "DESCENDING": true, + "DESCRIBE": true, + "DISTINCT": true, + "DROP": true, + "ELSE": true, + "END": true, + "ESCAPING": true, + "EXCEPT": true, + "EXCHANGE": true, + "EXPLAIN": true, + "FETCH": true, + "FILL": true, + "FINAL": true, + "FIRST": true, + "FOR": true, + "FOREGROUND": true, + "FROM": true, + "FULL": true, + "FUNCTION": true, + "GLOBAL": true, + "GRANT": true, + "GROUP": true, + "HAVING": true, + "HOUR": true, + "IF": true, + "ILIKE": true, + "IN": true, + "INNER": true, + "INTERSECT": true, + "INTO": true, + "IS": true, + "ISNULL": true, + "JOIN": true, + "KEY": true, + "KILL": true, + "LAST": true, + "LATERAL": true, + "LEFT": true, + "LIKE": true, + "LIMIT": true, + "LOCAL": true, + "NATURAL": true, + "NOT": true, + "NOTNULL": true, + "NULL": true, + "OFFSET": true, + "ON": true, + "OR": true, + "ORDER": true, + "OUTER": true, + "PARTITION": true, + "PREWHERE": true, + "PRIMARY": true, + "REVOKE": true, + "RIGHT": true, + "ROLLUP": true, + "ROW": true, + "ROWS": true, + "SAMPLE": true, + "SELECT": true, + "SEMI": true, + "SET": true, + "SETTINGS": true, + "SHOW": true, + "SOME": true, + "SUBJECT": true, + "TABLE": true, + "THEN": true, + "TIES": true, + "TRUNCATE": true, + "UNION": true, + "UPDATE": true, + "USING": true, + "VIEW": true, + "WHEN": true, + "WHERE": true, + "WINDOW": true, + "WITH": true, + "YEAR": true, +} + +func isReservedKeyword(s string) bool { + return reservedKeywords[s] +} diff --git a/internal/engine/clickhouse/type_resolver.go b/internal/engine/clickhouse/type_resolver.go new file mode 100644 index 0000000000..2271e64bb0 --- /dev/null +++ b/internal/engine/clickhouse/type_resolver.go @@ -0,0 +1,95 @@ +package clickhouse + +import ( + "strings" + + "github.com/sqlc-dev/sqlc/internal/sql/ast" + "github.com/sqlc-dev/sqlc/internal/sql/catalog" +) + +func TypeResolver(call *ast.FuncCall, fun *catalog.Function, resolve func(n ast.Node) (*catalog.Column, error)) *ast.TypeName { + funcName := strings.ToLower(fun.Name) + + switch funcName { + case "arrayjoin": + if len(call.Args.Items) != 1 { + return nil + } + // arrayJoin(arr) -> returns element type of arr + col, err := resolve(call.Args.Items[0]) + if err != nil { + return nil + } + // If the argument is an array, return the element type + // In sqlc, arrays are often represented by the IsArray flag on the column + if col.IsArray { + // Create a new type name based on the column's type + // We need to "unwrap" the array. + typeName := col.Type.Name + if strings.HasSuffix(typeName, "[]") { + typeName = strings.TrimSuffix(typeName, "[]") + } + return &ast.TypeName{ + Name: typeName, + } + } + // If it's not marked as IsArray, it might still be an array type string (e.g. "Array(Int32)") + // TODO: Parsing ClickHouse type strings might be needed here if DataType is "Array(T)" + return nil + + case "argmin", "argmax", "any", "anylast", "anyheavy", + "argminif", "argmaxif", "anyif", "anylastif", "anyheavyif", + "min", "max", "sum", "minif", "maxif", "sumif": + if len(call.Args.Items) < 1 { + return nil + } + // These functions return the type of their first argument + col, err := resolve(call.Args.Items[0]) + if err != nil { + return nil + } + typeName := col.Type + return &typeName + + case "count", "countif", "uniq", "uniqexact": + // ClickHouse count returns UInt64 + return &ast.TypeName{Name: "uint64"} + + case "jsonextract": + // JSONExtract(json, indices_or_keys..., return_type) + // The last argument is usually the type + if len(call.Args.Items) < 2 { + return nil + } + lastArg := call.Args.Items[len(call.Args.Items)-1] + // Check if it's a string literal + if constVal, ok := lastArg.(*ast.A_Const); ok { + if strVal, ok := constVal.Val.(*ast.String); ok { + typeStr := strVal.Str + // Map ClickHouse type string to sqlc type + mappedType := mapClickHouseType(typeStr) + // If it's an array type, we need to handle it + if strings.HasSuffix(mappedType, "[]") { + elemType := strings.TrimSuffix(mappedType, "[]") + return &ast.TypeName{ + Name: elemType, + ArrayBounds: &ast.List{ + Items: []ast.Node{&ast.A_Const{}}, + }, + } + } + return &ast.TypeName{Name: mappedType} + } + } + return nil + + case "jsonextractkeysandvalues": + // JSONExtractKeysAndValues(json, 'ValueType') -> Array(Tuple(String, ValueType)) + // We map this to just "any" or a complex type if possible. + // In sqlc, we might represent Array(Tuple(String, T)) as... complex. + // For now, let's return any, or maybe just handle the array part. + return &ast.TypeName{Name: "any"} + } + + return nil +} From 7960b179f162b1fa6cc7f8376e5f20ed355804fd Mon Sep 17 00:00:00 2001 From: Miguel Eduardo Gil Biraud Date: Sat, 6 Dec 2025 14:53:24 +0000 Subject: [PATCH 02/13] Add ClickHouse engine unit tests Comprehensive test coverage for parser and converter: - Basic parsing functionality (parse_test.go) - AST conversion correctness (new_conversions_test.go) - Catalog initialization (catalog_test.go) - Edge cases and boundary conditions (parse_boundary_test.go) - Real-world queries (parse_actual_queries_test.go) - Type handling, identifiers, joins, arrays --- .../clickhouse/array_join_columns_test.go | 128 + .../clickhouse/case_sensitivity_test.go | 165 ++ internal/engine/clickhouse/catalog_test.go | 83 + internal/engine/clickhouse/ident_test.go | 171 ++ .../engine/clickhouse/integration_test.go | 253 ++ internal/engine/clickhouse/join_test.go | 115 + .../engine/clickhouse/new_conversions_test.go | 210 ++ .../clickhouse/parse_actual_queries_test.go | 123 + .../engine/clickhouse/parse_boundary_test.go | 142 ++ .../engine/clickhouse/parse_real_file_test.go | 112 + internal/engine/clickhouse/parse_test.go | 2255 +++++++++++++++++ .../engine/clickhouse/qualified_col_test.go | 76 + .../engine/clickhouse/unhandled_types_test.go | 139 + internal/engine/clickhouse/using_test.go | 54 + 14 files changed, 4026 insertions(+) create mode 100644 internal/engine/clickhouse/array_join_columns_test.go create mode 100644 internal/engine/clickhouse/case_sensitivity_test.go create mode 100644 internal/engine/clickhouse/catalog_test.go create mode 100644 internal/engine/clickhouse/ident_test.go create mode 100644 internal/engine/clickhouse/integration_test.go create mode 100644 internal/engine/clickhouse/join_test.go create mode 100644 internal/engine/clickhouse/new_conversions_test.go create mode 100644 internal/engine/clickhouse/parse_actual_queries_test.go create mode 100644 internal/engine/clickhouse/parse_boundary_test.go create mode 100644 internal/engine/clickhouse/parse_real_file_test.go create mode 100644 internal/engine/clickhouse/parse_test.go create mode 100644 internal/engine/clickhouse/qualified_col_test.go create mode 100644 internal/engine/clickhouse/unhandled_types_test.go create mode 100644 internal/engine/clickhouse/using_test.go diff --git a/internal/engine/clickhouse/array_join_columns_test.go b/internal/engine/clickhouse/array_join_columns_test.go new file mode 100644 index 0000000000..82e5558423 --- /dev/null +++ b/internal/engine/clickhouse/array_join_columns_test.go @@ -0,0 +1,128 @@ +package clickhouse + +import ( + "strings" + "testing" + + "github.com/sqlc-dev/sqlc/internal/sql/ast" +) + +// TestArrayJoinColumnAliases validates that ARRAY JOIN creates properly aliased columns +// These columns should be available for reference in the SELECT list +func TestArrayJoinColumnAliases(t *testing.T) { + parser := NewParser() + + tests := []struct { + name string + query string + expectedColnames []string // column names from ARRAY JOIN + wantErr bool + }{ + { + name: "simple array join with alias", + query: ` + SELECT id, tag + FROM users + ARRAY JOIN tags AS tag + `, + expectedColnames: []string{"tag"}, + wantErr: false, + }, + { + name: "single array join with table alias and qualified name", + query: ` + SELECT u.id, u.name, tag + FROM users u + ARRAY JOIN u.tags AS tag + `, + expectedColnames: []string{"tag"}, + wantErr: false, + }, + { + name: "multiple array joins with aliases", + query: ` + SELECT event_id, event_name, prop_key, prop_value + FROM events + ARRAY JOIN properties.keys AS prop_key, properties.values AS prop_value + `, + expectedColnames: []string{"prop_key", "prop_value"}, + wantErr: false, + }, + } + + for _, tt := range tests { + t.Run(tt.name, func(t *testing.T) { + stmts, err := parser.Parse(strings.NewReader(tt.query)) + if (err != nil) != tt.wantErr { + t.Fatalf("Parse error: %v, wantErr %v", err, tt.wantErr) + } + + if len(stmts) == 0 { + t.Fatal("No statements parsed") + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + // Check that the FROM clause contains the ARRAY JOIN as a RangeSubselect + if selectStmt.FromClause == nil || len(selectStmt.FromClause.Items) == 0 { + t.Fatal("No FROM clause items found") + } + + // Find the RangeSubselect that represents the ARRAY JOIN + var arrayJoinRangeSubselect *ast.RangeSubselect + for _, item := range selectStmt.FromClause.Items { + if rs, ok := item.(*ast.RangeSubselect); ok { + arrayJoinRangeSubselect = rs + break + } + } + + if arrayJoinRangeSubselect == nil { + t.Fatal("No RangeSubselect found for ARRAY JOIN") + } + + // Verify that the RangeSubselect has a Subquery (synthetic SELECT statement) + if arrayJoinRangeSubselect.Subquery == nil { + t.Error("ARRAY JOIN RangeSubselect has no Subquery") + return + } + + syntheticSelect, ok := arrayJoinRangeSubselect.Subquery.(*ast.SelectStmt) + if !ok { + t.Errorf("Expected SelectStmt subquery, got %T", arrayJoinRangeSubselect.Subquery) + return + } + + // Verify the target list has the expected column names + if syntheticSelect.TargetList == nil || len(syntheticSelect.TargetList.Items) == 0 { + t.Error("Synthetic SELECT has no target list") + return + } + + if len(syntheticSelect.TargetList.Items) != len(tt.expectedColnames) { + t.Errorf("Expected %d targets, got %d", len(tt.expectedColnames), len(syntheticSelect.TargetList.Items)) + return + } + + // Verify the target values (which should be ResTargets with Name set) + for i, expected := range tt.expectedColnames { + target, ok := syntheticSelect.TargetList.Items[i].(*ast.ResTarget) + if !ok { + t.Errorf("Target %d is not a ResTarget: %T", i, syntheticSelect.TargetList.Items[i]) + continue + } + + if target.Name == nil || *target.Name != expected { + var name string + if target.Name != nil { + name = *target.Name + } + t.Errorf("Target %d: expected name %q, got %q", i, expected, name) + } + } + }) + } +} diff --git a/internal/engine/clickhouse/case_sensitivity_test.go b/internal/engine/clickhouse/case_sensitivity_test.go new file mode 100644 index 0000000000..19b947ecf7 --- /dev/null +++ b/internal/engine/clickhouse/case_sensitivity_test.go @@ -0,0 +1,165 @@ +package clickhouse + +import ( + "strings" + "testing" + + "github.com/sqlc-dev/sqlc/internal/sql/ast" +) + +func TestCaseSensitiveColumns(t *testing.T) { + // ClickHouse is case-sensitive for identifiers + // This test demonstrates the issue where columns with different cases + // are incorrectly treated as the same column + + sql := ` +CREATE TABLE test_table +( + UserId UInt32, + userName String, + EMAIL String +) +ENGINE = MergeTree() +ORDER BY UserId; +` + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + createStmt, ok := stmts[0].Raw.Stmt.(*ast.CreateTableStmt) + if !ok { + t.Fatalf("Expected CreateTableStmt, got %T", stmts[0].Raw.Stmt) + } + + // Check that column names preserve their case + expectedColumns := map[string]bool{ + "UserId": true, + "userName": true, + "EMAIL": true, + } + + actualColumns := make(map[string]bool) + for _, col := range createStmt.Cols { + actualColumns[col.Colname] = true + } + + if len(actualColumns) != len(expectedColumns) { + t.Errorf("Expected %d distinct columns, got %d", len(expectedColumns), len(actualColumns)) + } + + for expected := range expectedColumns { + if !actualColumns[expected] { + t.Errorf("Column '%s' not found. Found columns: %v", expected, actualColumns) + } + } +} + +func TestCaseSensitiveColumnReference(t *testing.T) { + // Test that column references preserve case in SELECT statements + sql := "SELECT UserId, userName, EMAIL FROM test_table;" + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + expectedColRefs := []string{"UserId", "userName", "EMAIL"} + if len(selectStmt.TargetList.Items) != len(expectedColRefs) { + t.Fatalf("Expected %d target items, got %d", len(expectedColRefs), len(selectStmt.TargetList.Items)) + } + + for i, expected := range expectedColRefs { + target, ok := selectStmt.TargetList.Items[i].(*ast.ResTarget) + if !ok { + t.Fatalf("Item %d is not a ResTarget: %T", i, selectStmt.TargetList.Items[i]) + } + + // Check if Name is set (for aliased columns) or extract from ColumnRef + var got string + if target.Name != nil && *target.Name != "" { + got = *target.Name + } else if colRef, ok := target.Val.(*ast.ColumnRef); ok && colRef != nil && colRef.Fields != nil && len(colRef.Fields.Items) > 0 { + // Extract the column name from the ColumnRef + if s, ok := colRef.Fields.Items[len(colRef.Fields.Items)-1].(*ast.String); ok { + got = s.Str + } + } + + if got != expected { + t.Errorf("Column %d: expected '%s', got '%s'", i, expected, got) + } + } +} + +func TestCaseSensitiveWhereClauses(t *testing.T) { + // Test that WHERE clauses with case-sensitive column names work correctly + sql := "SELECT * FROM users WHERE UserId = 123 AND userName = 'John';" + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + // Verify WHERE clause references preserve case + if selectStmt.WhereClause == nil { + t.Fatal("WHERE clause is nil") + } + + // The WHERE clause should contain column references with preserved case + // This is a simple check - we'd need to traverse the AST to verify + // that column names in the WHERE clause preserve their case + whereStr := astToString(selectStmt.WhereClause) + + // Check that the case is preserved in the where clause + if !strings.Contains(whereStr, "UserId") || !strings.Contains(whereStr, "userName") { + t.Errorf("WHERE clause should preserve column name case. Got: %s", whereStr) + } +} + +// astToString converts AST nodes to a string representation for testing +func astToString(node ast.Node) string { + if node == nil { + return "" + } + + switch n := node.(type) { + case *ast.A_Expr: + left := astToString(n.Lexpr) + right := astToString(n.Rexpr) + return left + " " + right + case *ast.ColumnRef: + if n.Fields != nil && len(n.Fields.Items) > 0 { + if s, ok := n.Fields.Items[len(n.Fields.Items)-1].(*ast.String); ok { + return s.Str + } + } + case *ast.A_Const: + if s, ok := n.Val.(*ast.String); ok { + return s.Str + } + } + return "" +} diff --git a/internal/engine/clickhouse/catalog_test.go b/internal/engine/clickhouse/catalog_test.go new file mode 100644 index 0000000000..20191df25b --- /dev/null +++ b/internal/engine/clickhouse/catalog_test.go @@ -0,0 +1,83 @@ +package clickhouse + +import ( + "strings" + "testing" + + "github.com/sqlc-dev/sqlc/internal/sql/ast" +) + +func TestCatalogIntegration(t *testing.T) { + schema := ` +CREATE TABLE IF NOT EXISTS users +( + id UInt32, + name String, + email String +) +ENGINE = MergeTree() +ORDER BY id; +` + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(schema)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + // Debug: check what's in the statement + if stmts[0].Raw != nil && stmts[0].Raw.Stmt != nil { + if createStmt, ok := stmts[0].Raw.Stmt.(*ast.CreateTableStmt); ok { + t.Logf("CreateTableStmt: Schema='%s', Table='%s'", createStmt.Name.Schema, createStmt.Name.Name) + t.Logf("CreateTableStmt: Cols count=%d", len(createStmt.Cols)) + } else { + t.Logf("Statement type: %T", stmts[0].Raw.Stmt) + } + } + + cat := NewCatalog() + if cat.DefaultSchema != "default" { + t.Errorf("Expected default schema 'default', got '%s'", cat.DefaultSchema) + } + + // Try to update catalog with the CREATE TABLE + t.Logf("Calling catalog.Update()...") + err = cat.Update(stmts[0], nil) + if err != nil { + t.Fatalf("Catalog update failed: %v", err) + } + t.Logf("Catalog update succeeded") + + // Check if table was added + t.Logf("Catalog has %d schemas", len(cat.Schemas)) + for i, schema := range cat.Schemas { + t.Logf("Schema[%d]: Name='%s', Tables=%d", i, schema.Name, len(schema.Tables)) + } + + if len(cat.Schemas) == 0 { + t.Fatal("No schemas in catalog") + } + + defaultSchema := cat.Schemas[0] + if len(defaultSchema.Tables) == 0 { + t.Fatal("No tables in default schema") + } + + table := defaultSchema.Tables[0] + if table.Rel.Name != "users" { + t.Errorf("Expected table name 'users', got '%s'", table.Rel.Name) + } + + if len(table.Columns) != 3 { + t.Errorf("Expected 3 columns, got %d", len(table.Columns)) + } + + // Log column types for debugging + for i, col := range table.Columns { + t.Logf("Column[%d]: Name='%s', Type.Name='%s', NotNull=%v", i, col.Name, col.Type.Name, col.IsNotNull) + } +} diff --git a/internal/engine/clickhouse/ident_test.go b/internal/engine/clickhouse/ident_test.go new file mode 100644 index 0000000000..ff475ddba4 --- /dev/null +++ b/internal/engine/clickhouse/ident_test.go @@ -0,0 +1,171 @@ +package clickhouse + +import ( + "strings" + "testing" + + "github.com/sqlc-dev/sqlc/internal/sql/ast" +) + +// TestConvertIdentAsColumnRef tests that identifiers are correctly converted +// to ColumnRef nodes instead of String literals. +// +// This is important because identifiers in SELECT, WHERE, and other clauses +// refer to columns, not literal strings. The compiler's column resolution logic +// depends on finding ColumnRef nodes to properly match columns against the catalog. +func TestConvertIdentAsColumnRef(t *testing.T) { + parser := NewParser() + + tests := []struct { + name string + query string + wantVal func(ast.Node) bool // checks that Val is a ColumnRef + }{ + { + name: "select single column", + query: "SELECT id FROM table1", + wantVal: func(n ast.Node) bool { + colRef, ok := n.(*ast.ColumnRef) + if !ok { + return false + } + if len(colRef.Fields.Items) != 1 { + return false + } + str, ok := colRef.Fields.Items[0].(*ast.String) + return ok && str.Str == "id" + }, + }, + { + name: "select multiple columns", + query: "SELECT id, name, email FROM table1", + wantVal: func(n ast.Node) bool { + _, ok := n.(*ast.ColumnRef) + return ok + }, + }, + { + name: "where clause with column reference", + query: "SELECT * FROM table1 WHERE id = 1", + wantVal: func(n ast.Node) bool { + // The WHERE clause should have a ColumnRef for 'id' + // This is a simple smoke test that the query parses + return true + }, + }, + } + + for _, tt := range tests { + t.Run(tt.name, func(t *testing.T) { + stmts, err := parser.Parse(strings.NewReader(tt.query)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) == 0 { + t.Fatal("No statements parsed") + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + if len(selectStmt.TargetList.Items) == 0 { + t.Fatal("No targets in select") + } + + // Check the first target + resTarget := selectStmt.TargetList.Items[0].(*ast.ResTarget) + if resTarget == nil { + t.Fatal("First target is not a ResTarget") + } + + if !tt.wantVal(resTarget.Val) { + t.Errorf("Val check failed. Got type %T: %+v", resTarget.Val, resTarget.Val) + } + }) + } +} + +// TestIdentifierInWhereClause tests that identifiers in WHERE clauses are +// converted to ColumnRef, not String literals. +func TestIdentifierInWhereClause(t *testing.T) { + parser := NewParser() + + query := "SELECT * FROM users WHERE status = 'active' AND age > 18" + stmts, err := parser.Parse(strings.NewReader(query)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + selectStmt := stmts[0].Raw.Stmt.(*ast.SelectStmt) + + // The WHERE clause should contain a BoolExpr with column references for 'status' and 'age' + // This test ensures the parser correctly identifies column references in conditions + if selectStmt.WhereClause == nil { + t.Fatal("WHERE clause is nil") + } + + // Just verify it parses without error and has a where clause + // The detailed structure is tested in the ClickHouse parser tests + t.Logf("WHERE clause type: %T", selectStmt.WhereClause) +} + +// TestIdentifierResolution tests that identifiers are properly resolved +// when matching against catalog columns. +func TestIdentifierResolution(t *testing.T) { + parser := NewParser() + cat := NewCatalog() + + // Create a table with specific columns + schemaSQL := `CREATE TABLE users ( + user_id UInt32, + user_name String, + user_email String + )` + + stmts, err := parser.Parse(strings.NewReader(schemaSQL)) + if err != nil { + t.Fatalf("Parse schema failed: %v", err) + } + + for _, stmt := range stmts { + if err := cat.Update(stmt, nil); err != nil { + t.Fatalf("Update catalog failed: %v", err) + } + } + + // Parse a query selecting these columns by name + querySQL := "SELECT user_id, user_name FROM users" + queryStmts, err := parser.Parse(strings.NewReader(querySQL)) + if err != nil { + t.Fatalf("Parse query failed: %v", err) + } + + selectStmt := queryStmts[0].Raw.Stmt.(*ast.SelectStmt) + + // Verify that targets are ColumnRefs + for i, target := range selectStmt.TargetList.Items { + resTarget, ok := target.(*ast.ResTarget) + if !ok { + t.Fatalf("Target %d is not ResTarget", i) + } + + colRef, ok := resTarget.Val.(*ast.ColumnRef) + if !ok { + t.Fatalf("Target %d Val is not ColumnRef, got %T", i, resTarget.Val) + } + + if len(colRef.Fields.Items) == 0 { + t.Fatalf("Target %d ColumnRef has no fields", i) + } + + colName, ok := colRef.Fields.Items[0].(*ast.String) + if !ok { + t.Fatalf("Target %d field is not String", i) + } + + t.Logf("Column %d: %s", i, colName.Str) + } +} diff --git a/internal/engine/clickhouse/integration_test.go b/internal/engine/clickhouse/integration_test.go new file mode 100644 index 0000000000..3eb21ed71f --- /dev/null +++ b/internal/engine/clickhouse/integration_test.go @@ -0,0 +1,253 @@ +//go:build integration +// +build integration + +package clickhouse + +import ( + "context" + "database/sql" + "os" + "strings" + "testing" + + _ "github.com/ClickHouse/clickhouse-go/v2" +) + +// TestArrayJoinIntegration tests ARRAY JOIN against a live ClickHouse database +// Run with: go test -tags=integration -run TestArrayJoinIntegration ./internal/engine/clickhouse +// +// Prerequisites: +// - ClickHouse server running (docker run -p 9000:9000 -p 8123:8123 clickhouse/clickhouse-server) +// - Or use docker-compose up clickhouse +func TestArrayJoinIntegration(t *testing.T) { + // Skip if no ClickHouse connection info + clickhouseURL := os.Getenv("CLICKHOUSE_URL") + if clickhouseURL == "" { + clickhouseURL = "clickhouse://localhost:9000/default" + } + + db, err := sql.Open("clickhouse", clickhouseURL) + if err != nil { + t.Skip("ClickHouse not available:", err) + return + } + defer db.Close() + + ctx := context.Background() + + // Test connection + if err := db.PingContext(ctx); err != nil { + t.Skip("ClickHouse not reachable:", err) + return + } + + // Create test database + _, err = db.ExecContext(ctx, "CREATE DATABASE IF NOT EXISTS sqlc_test") + if err != nil { + t.Fatalf("Failed to create database: %v", err) + } + + // Clean up function + defer func() { + db.ExecContext(ctx, "DROP DATABASE IF EXISTS sqlc_test") + }() + + t.Run("BasicArrayJoin", func(t *testing.T) { + // Create table with array column + _, err := db.ExecContext(ctx, ` + CREATE TABLE IF NOT EXISTS sqlc_test.users_with_tags ( + id UInt32, + name String, + tags Array(String) + ) ENGINE = MergeTree() + ORDER BY id + `) + if err != nil { + t.Fatalf("Failed to create table: %v", err) + } + defer db.ExecContext(ctx, "DROP TABLE IF EXISTS sqlc_test.users_with_tags") + + // Insert test data + _, err = db.ExecContext(ctx, ` + INSERT INTO sqlc_test.users_with_tags VALUES + (1, 'Alice', ['developer', 'admin']), + (2, 'Bob', ['designer', 'user']), + (3, 'Charlie', ['manager']) + `) + if err != nil { + t.Fatalf("Failed to insert data: %v", err) + } + + // Test ARRAY JOIN query + rows, err := db.QueryContext(ctx, ` + SELECT id, name, tag + FROM sqlc_test.users_with_tags + ARRAY JOIN tags AS tag + ORDER BY id, tag + `) + if err != nil { + t.Fatalf("ARRAY JOIN query failed: %v", err) + } + defer rows.Close() + + // Verify results + expectedResults := []struct { + id uint32 + name string + tag string + }{ + {1, "Alice", "admin"}, + {1, "Alice", "developer"}, + {2, "Bob", "designer"}, + {2, "Bob", "user"}, + {3, "Charlie", "manager"}, + } + + resultCount := 0 + for rows.Next() { + var id uint32 + var name, tag string + if err := rows.Scan(&id, &name, &tag); err != nil { + t.Fatalf("Failed to scan row: %v", err) + } + + if resultCount >= len(expectedResults) { + t.Fatalf("More results than expected, got row: id=%d, name=%s, tag=%s", id, name, tag) + } + + expected := expectedResults[resultCount] + if id != expected.id || name != expected.name || tag != expected.tag { + t.Errorf("Row %d mismatch: got (%d, %s, %s), want (%d, %s, %s)", + resultCount, id, name, tag, expected.id, expected.name, expected.tag) + } + resultCount++ + } + + if resultCount != len(expectedResults) { + t.Errorf("Expected %d rows, got %d", len(expectedResults), resultCount) + } + }) + + t.Run("ArrayJoinWithFilter", func(t *testing.T) { + // Create table with nested arrays + _, err := db.ExecContext(ctx, ` + CREATE TABLE IF NOT EXISTS sqlc_test.events_with_props ( + event_id UInt32, + event_name String, + properties Array(String) + ) ENGINE = MergeTree() + ORDER BY event_id + `) + if err != nil { + t.Fatalf("Failed to create table: %v", err) + } + defer db.ExecContext(ctx, "DROP TABLE IF EXISTS sqlc_test.events_with_props") + + // Insert test data + _, err = db.ExecContext(ctx, ` + INSERT INTO sqlc_test.events_with_props VALUES + (1, 'click', ['button', 'header', 'link']), + (2, 'view', ['page', 'section']), + (3, 'submit', ['form', 'button']) + `) + if err != nil { + t.Fatalf("Failed to insert data: %v", err) + } + + // Test ARRAY JOIN with WHERE clause + rows, err := db.QueryContext(ctx, ` + SELECT event_id, event_name, prop + FROM sqlc_test.events_with_props + ARRAY JOIN properties AS prop + WHERE event_id >= 2 + ORDER BY event_id, prop + `) + if err != nil { + t.Fatalf("ARRAY JOIN with WHERE failed: %v", err) + } + defer rows.Close() + + resultCount := 0 + for rows.Next() { + var eventID uint32 + var eventName, prop string + if err := rows.Scan(&eventID, &eventName, &prop); err != nil { + t.Fatalf("Failed to scan row: %v", err) + } + + // Verify event_id is >= 2 + if eventID < 2 { + t.Errorf("Expected event_id >= 2, got %d", eventID) + } + resultCount++ + } + + // Should have 4 rows (2: page, section; 3: button, form) + if resultCount != 4 { + t.Errorf("Expected 4 rows, got %d", resultCount) + } + }) + + t.Run("ArrayJoinFunction", func(t *testing.T) { + // Test arrayJoin() function (different from ARRAY JOIN clause) + rows, err := db.QueryContext(ctx, ` + SELECT arrayJoin(['a', 'b', 'c']) AS element + `) + if err != nil { + t.Fatalf("arrayJoin() function failed: %v", err) + } + defer rows.Close() + + elements := []string{} + for rows.Next() { + var elem string + if err := rows.Scan(&elem); err != nil { + t.Fatalf("Failed to scan row: %v", err) + } + elements = append(elements, elem) + } + + expected := []string{"a", "b", "c"} + if len(elements) != len(expected) { + t.Errorf("Expected %d elements, got %d", len(expected), len(elements)) + } + + for i, elem := range elements { + if elem != expected[i] { + t.Errorf("Element %d: expected %s, got %s", i, expected[i], elem) + } + } + }) + + t.Run("ParseAndExecute", func(t *testing.T) { + // Test that our parser can parse the ARRAY JOIN query + // and the generated AST is correct + sql := ` + SELECT id, name, tag + FROM sqlc_test.users_with_tags + ARRAY JOIN tags AS tag + WHERE id = 1 + ORDER BY tag + ` + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + // The parsing succeeded - this validates our converter worked + t.Log("Successfully parsed ARRAY JOIN query") + }) +} + +// TestArrayJoinCodeGeneration tests the full pipeline: parse -> generate -> execute +func TestArrayJoinCodeGeneration(t *testing.T) { + // This would require the full sqlc pipeline + // For now, we just test that the queries in queries.sql can be parsed + t.Skip("Full code generation test requires sqlc generate - run manually") +} diff --git a/internal/engine/clickhouse/join_test.go b/internal/engine/clickhouse/join_test.go new file mode 100644 index 0000000000..369495935b --- /dev/null +++ b/internal/engine/clickhouse/join_test.go @@ -0,0 +1,115 @@ +package clickhouse + +import ( + "fmt" + "strings" + "testing" + + "github.com/sqlc-dev/sqlc/internal/sql/ast" +) + +// TestConvertJoinExpr tests that JOIN expressions are properly converted +// to sqlc AST with RangeVar nodes instead of TODO nodes +func TestConvertJoinExpr(t *testing.T) { + parser := NewParser() + + tests := []struct { + name string + query string + wantErr bool + check func(*ast.SelectStmt) error + }{ + { + name: "simple left join", + query: "SELECT u.id, u.name, p.id as post_id FROM users u LEFT JOIN posts p ON u.id = p.user_id", + wantErr: false, + check: func(selectStmt *ast.SelectStmt) error { + // Check that FROM clause contains a JoinExpr + if selectStmt.FromClause == nil { + return errorf("FromClause is nil") + } + if len(selectStmt.FromClause.Items) == 0 { + return errorf("FromClause items is empty") + } + + // The first item in FromClause should be a JoinExpr + fromItem := selectStmt.FromClause.Items[0] + joinExpr, ok := fromItem.(*ast.JoinExpr) + if !ok { + return errorf("Expected JoinExpr, got %T", fromItem) + } + + // Larg should be a RangeVar for the left table + if joinExpr.Larg == nil { + return errorf("JoinExpr.Larg is nil") + } + larg, ok := joinExpr.Larg.(*ast.RangeVar) + if !ok { + return errorf("Expected RangeVar for Larg, got %T", joinExpr.Larg) + } + if larg.Relname == nil || *larg.Relname != "users" { + return errorf("Expected left table to be 'users', got %v", larg.Relname) + } + + // Rarg should be a RangeVar for the right table (after normalization) + // ClickHouse join structures are normalized to PostgreSQL style at conversion time + if joinExpr.Rarg == nil { + return errorf("JoinExpr.Rarg is nil") + } + rarg, ok := joinExpr.Rarg.(*ast.RangeVar) + if !ok { + return errorf("Expected RangeVar for Rarg (normalized from ClickHouse structure), got %T", joinExpr.Rarg) + } + if rarg.Relname == nil || *rarg.Relname != "posts" { + return errorf("Expected right table to be 'posts', got %v", rarg.Relname) + } + + return nil + }, + }, + { + name: "join without aliases", + query: "SELECT * FROM users INNER JOIN posts ON users.id = posts.user_id", + wantErr: false, + check: func(selectStmt *ast.SelectStmt) error { + if len(selectStmt.FromClause.Items) == 0 { + return errorf("FromClause items is empty") + } + joinExpr, ok := selectStmt.FromClause.Items[0].(*ast.JoinExpr) + if !ok { + return errorf("Expected JoinExpr, got %T", selectStmt.FromClause.Items[0]) + } + if joinExpr.Jointype != ast.JoinTypeInner { + return errorf("Expected INNER join, got %v", joinExpr.Jointype) + } + return nil + }, + }, + } + + for _, tt := range tests { + t.Run(tt.name, func(t *testing.T) { + stmts, err := parser.Parse(strings.NewReader(tt.query)) + if (err != nil) != tt.wantErr { + t.Fatalf("Parse error: %v, wantErr %v", err, tt.wantErr) + } + + if len(stmts) == 0 { + t.Fatal("No statements parsed") + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + if err := tt.check(selectStmt); err != nil { + t.Fatal(err) + } + }) + } +} + +func errorf(format string, args ...interface{}) error { + return fmt.Errorf(format, args...) +} diff --git a/internal/engine/clickhouse/new_conversions_test.go b/internal/engine/clickhouse/new_conversions_test.go new file mode 100644 index 0000000000..a059c5ac98 --- /dev/null +++ b/internal/engine/clickhouse/new_conversions_test.go @@ -0,0 +1,210 @@ +package clickhouse + +import ( + "strings" + "testing" + + "github.com/sqlc-dev/sqlc/internal/sql/ast" +) + +// TestArrayParamListConversion tests array literal conversion +func TestArrayParamListConversion(t *testing.T) { + parser := NewParser() + + tests := []struct { + name string + query string + wantErr bool + }{ + { + name: "simple array literal", + query: "SELECT [1, 2, 3] as arr", + wantErr: false, + }, + { + name: "string array literal", + query: "SELECT ['a', 'b', 'c'] as strs", + wantErr: false, + }, + { + name: "array in IN clause", + query: "SELECT * FROM table1 WHERE x IN [1, 2, 3]", + wantErr: false, + }, + { + name: "array in function", + query: "SELECT arrayMap(x -> x * 2, [1, 2, 3]) as doubled", + wantErr: false, + }, + } + + for _, tt := range tests { + t.Run(tt.name, func(t *testing.T) { + stmts, err := parser.Parse(strings.NewReader(tt.query)) + if (err != nil) != tt.wantErr { + t.Fatalf("Parse error: %v, wantErr %v", err, tt.wantErr) + } + + if len(stmts) > 0 { + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + // Verify it parses without TODO nodes (or minimal TODOs) + _ = selectStmt + } + }) + } +} + +// TestTableFunctionConversion tests table function conversion +func TestTableFunctionConversion(t *testing.T) { + parser := NewParser() + + tests := []struct { + name string + query string + wantErr bool + }{ + { + name: "numbers table function", + query: "SELECT * FROM numbers(10)", + wantErr: false, + }, + { + name: "numbers with range", + query: "SELECT * FROM numbers(1, 5)", + wantErr: false, + }, + { + name: "numbers in join", + query: "SELECT t.number FROM numbers(5) t", + wantErr: false, + }, + } + + for _, tt := range tests { + t.Run(tt.name, func(t *testing.T) { + stmts, err := parser.Parse(strings.NewReader(tt.query)) + if (err != nil) != tt.wantErr { + t.Fatalf("Parse error: %v, wantErr %v", err, tt.wantErr) + } + + if len(stmts) > 0 { + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + // Verify FromClause exists and has items + if selectStmt.FromClause != nil && len(selectStmt.FromClause.Items) > 0 { + // Should be a RangeFunction for table functions + fromItem := selectStmt.FromClause.Items[0] + _, isRangeFunc := fromItem.(*ast.RangeFunction) + if !isRangeFunc && !tt.wantErr { + // Could also be RangeVar if not a pure table function context + // This is acceptable + } + } + } + }) + } +} + +// TestIndexOperationConversion tests array/tuple indexing conversion +func TestIndexOperationConversion(t *testing.T) { + parser := NewParser() + + tests := []struct { + name string + query string + wantErr bool + }{ + { + name: "array indexing", + query: "SELECT arr[1] FROM table1", + wantErr: false, + }, + { + name: "tuple indexing", + query: "SELECT (1, 2, 3)[2] as second_elem", + wantErr: false, + }, + { + name: "nested array indexing", + query: "SELECT nested_arr[1][2] FROM table1", + wantErr: false, + }, + } + + for _, tt := range tests { + t.Run(tt.name, func(t *testing.T) { + stmts, err := parser.Parse(strings.NewReader(tt.query)) + if (err != nil) != tt.wantErr { + t.Fatalf("Parse error: %v, wantErr %v", err, tt.wantErr) + } + + if len(stmts) > 0 { + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + _ = selectStmt + } + }) + } +} + +// TestTernaryOperationConversion tests ternary operator conversion +func TestTernaryOperationConversion(t *testing.T) { + parser := NewParser() + + tests := []struct { + name string + query string + wantErr bool + }{ + { + name: "simple ternary", + query: "SELECT x > 0 ? 'positive' : 'non-positive' as sign FROM table1", + wantErr: false, + }, + { + name: "nested ternary", + query: "SELECT x > 0 ? 'positive' : x < 0 ? 'negative' : 'zero' as sign FROM table1", + wantErr: false, + }, + { + name: "ternary in expression", + query: "SELECT (a > b ? a : b) as max_val FROM table1", + wantErr: false, + }, + } + + for _, tt := range tests { + t.Run(tt.name, func(t *testing.T) { + stmts, err := parser.Parse(strings.NewReader(tt.query)) + if (err != nil) != tt.wantErr { + t.Fatalf("Parse error: %v, wantErr %v", err, tt.wantErr) + } + + if len(stmts) > 0 { + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + // Should have a CaseExpr in the TargetList + if len(selectStmt.TargetList.Items) > 0 { + resTarget := selectStmt.TargetList.Items[0].(*ast.ResTarget) + _, isCaseExpr := resTarget.Val.(*ast.CaseExpr) + if !isCaseExpr { + // Might be wrapped in other expressions, which is ok + } + } + } + }) + } +} diff --git a/internal/engine/clickhouse/parse_actual_queries_test.go b/internal/engine/clickhouse/parse_actual_queries_test.go new file mode 100644 index 0000000000..c43d3551f5 --- /dev/null +++ b/internal/engine/clickhouse/parse_actual_queries_test.go @@ -0,0 +1,123 @@ +package clickhouse + +import ( + "strings" + "testing" +) + +// TestActualQueryBoundaries tests with the actual queries that are having issues +func TestActualQueryBoundaries(t *testing.T) { + // These are the actual queries from examples/clickhouse/queries.sql that show the bug + input := `-- name: UnfoldNestedData :many +SELECT + record_id, + nested_value +FROM sqlc_example.nested_table +ARRAY JOIN nested_array AS nested_value +WHERE record_id IN (sqlc.slice('record_ids')); + +-- name: AnalyzeArrayElements :many +SELECT + product_id, + arrayJoin(categories) AS category, + COUNT(*) OVER (PARTITION BY category) as category_count +FROM sqlc_example.products +WHERE product_id = ? +GROUP BY product_id, category; + +-- name: ExtractMetadataFromJSON :many +SELECT + MetadataPlatformId, + arrayJoin(JSONExtract(JsonValue, 'Array(String)')) as self_help_id +FROM sqlc_example.events;` + + parser := NewParser() + stmts, err := parser.Parse(strings.NewReader(input)) + if err != nil { + t.Fatalf("failed to parse: %v", err) + } + + if len(stmts) != 3 { + t.Fatalf("expected 3 statements, got %d", len(stmts)) + } + + // Define expected queries + expectedQueries := []string{ + `-- name: UnfoldNestedData :many +SELECT + record_id, + nested_value +FROM sqlc_example.nested_table +ARRAY JOIN nested_array AS nested_value +WHERE record_id IN (sqlc.slice('record_ids'));`, + `-- name: AnalyzeArrayElements :many +SELECT + product_id, + arrayJoin(categories) AS category, + COUNT(*) OVER (PARTITION BY category) as category_count +FROM sqlc_example.products +WHERE product_id = ? +GROUP BY product_id, category;`, + `-- name: ExtractMetadataFromJSON :many +SELECT + MetadataPlatformId, + arrayJoin(JSONExtract(JsonValue, 'Array(String)')) as self_help_id +FROM sqlc_example.events;`, + } + + for i, stmt := range stmts { + raw := stmt.Raw + if raw == nil { + t.Fatalf("statement %d has no RawStmt", i) + } + + // Extract the SQL text + location := raw.StmtLocation + length := raw.StmtLen + + t.Logf("Statement %d: location=%d, length=%d", i, location, length) + + if location < 0 || location >= len(input) { + t.Errorf("Statement %d: invalid location %d (input length: %d)", i, location, len(input)) + continue + } + + if location+length > len(input) { + t.Errorf("Statement %d: location+length (%d) exceeds input length (%d)", + i, location+length, len(input)) + continue + } + + extracted := input[location : location+length] + + // Normalize whitespace for comparison + extracted = strings.TrimSpace(extracted) + expected := strings.TrimSpace(expectedQueries[i]) + + if extracted != expected { + t.Errorf("Query %d boundary mismatch:\n\n=== EXPECTED ===\n%s\n\n=== GOT ===\n%s\n\n=== DIFF ===", + i, expected, extracted) + + // Show first difference + minLen := len(extracted) + if len(expected) < minLen { + minLen = len(expected) + } + for j := 0; j < minLen; j++ { + if extracted[j] != expected[j] { + start := j - 20 + if start < 0 { + start = 0 + } + end := j + 20 + if end > minLen { + end = minLen + } + t.Errorf("First difference at position %d:\nExpected: %q\nGot: %q", + j, expected[start:end], extracted[start:end]) + break + } + } + } + } +} diff --git a/internal/engine/clickhouse/parse_boundary_test.go b/internal/engine/clickhouse/parse_boundary_test.go new file mode 100644 index 0000000000..905552b182 --- /dev/null +++ b/internal/engine/clickhouse/parse_boundary_test.go @@ -0,0 +1,142 @@ +package clickhouse + +import ( + "strings" + "testing" +) + +// TestQueryBoundaryDetection tests that the parser correctly identifies +// statement boundaries including the -- name: annotation +func TestQueryBoundaryDetection(t *testing.T) { + input := `-- name: QueryOne :one +SELECT id, name FROM table1 +WHERE id = ?; + +-- name: QueryTwo :many +SELECT id, value FROM table2 +WHERE status = sqlc.arg('status') +ORDER BY id; + +-- name: QueryThree :exec +INSERT INTO table3 (id, data) +VALUES (?, ?);` + + parser := NewParser() + stmts, err := parser.Parse(strings.NewReader(input)) + if err != nil { + t.Fatalf("failed to parse: %v", err) + } + + if len(stmts) != 3 { + t.Fatalf("expected 3 statements, got %d", len(stmts)) + } + + // Extract the raw SQL for each statement + type extractedQuery struct { + name string + expected string + } + + queries := []extractedQuery{ + { + name: "QueryOne", + expected: `-- name: QueryOne :one +SELECT id, name FROM table1 +WHERE id = ?;`, + }, + { + name: "QueryTwo", + expected: `-- name: QueryTwo :many +SELECT id, value FROM table2 +WHERE status = sqlc.arg('status') +ORDER BY id;`, + }, + { + name: "QueryThree", + expected: `-- name: QueryThree :exec +INSERT INTO table3 (id, data) +VALUES (?, ?);`, + }, + } + + for i, stmt := range stmts { + raw := stmt.Raw + if raw == nil { + t.Fatalf("statement %d has no RawStmt", i) + } + + // Extract the SQL text using the same logic as the compiler + location := raw.StmtLocation + length := raw.StmtLen + extracted := input[location : location+length] + + // Normalize whitespace for comparison + extracted = strings.TrimSpace(extracted) + expected := strings.TrimSpace(queries[i].expected) + + if extracted != expected { + t.Errorf("Query %d (%s) boundary mismatch:\nExpected:\n%s\n\nGot:\n%s", + i, queries[i].name, expected, extracted) + } + } +} + +// TestComplexQueryBoundaries tests boundary detection with more complex queries +func TestComplexQueryBoundaries(t *testing.T) { + input := `-- name: GetUserByID :one +SELECT id, name, email, created_at +FROM users +WHERE id = ?; + +-- name: ListUsers :many +SELECT id, name, email, created_at +FROM users +ORDER BY created_at DESC +LIMIT ?; + +-- name: InsertUser :exec +INSERT INTO users (id, name, email, created_at) +VALUES (?, ?, ?, ?);` + + parser := NewParser() + stmts, err := parser.Parse(strings.NewReader(input)) + if err != nil { + t.Fatalf("failed to parse: %v", err) + } + + if len(stmts) != 3 { + t.Fatalf("expected 3 statements, got %d", len(stmts)) + } + + // Verify each extracted query + for i, stmt := range stmts { + raw := stmt.Raw + location := raw.StmtLocation + length := raw.StmtLen + extracted := input[location : location+length] + + // Check that it starts with "-- name:" + if !strings.HasPrefix(strings.TrimSpace(extracted), "-- name:") { + t.Errorf("Query %d doesn't start with '-- name:': %q", i, extracted[:min(50, len(extracted))]) + } + + // Check that it ends with a semicolon + trimmed := strings.TrimSpace(extracted) + if !strings.HasSuffix(trimmed, ";") { + t.Errorf("Query %d doesn't end with ';': %q", i, trimmed[max(0, len(trimmed)-50):]) + } + + // Check that it doesn't contain text from adjacent queries + lines := strings.Split(extracted, "\n") + nameCommentCount := 0 + for _, line := range lines { + if strings.Contains(line, "-- name:") { + nameCommentCount++ + } + } + if nameCommentCount != 1 { + t.Errorf("Query %d contains %d '-- name:' comments, expected 1:\n%s", + i, nameCommentCount, extracted) + } + } +} diff --git a/internal/engine/clickhouse/parse_real_file_test.go b/internal/engine/clickhouse/parse_real_file_test.go new file mode 100644 index 0000000000..30fb0fbb4a --- /dev/null +++ b/internal/engine/clickhouse/parse_real_file_test.go @@ -0,0 +1,112 @@ +package clickhouse + +import ( + "os" + "strings" + "testing" +) + +// TestRealQueryFile tests parsing the actual queries.sql file +func TestRealQueryFile(t *testing.T) { + // Read the actual queries file + queriesPath := "../../../examples/clickhouse/queries.sql" + content, err := os.ReadFile(queriesPath) + if err != nil { + t.Skipf("Could not read queries file: %v", err) + } + + input := string(content) + + parser := NewParser() + stmts, err := parser.Parse(strings.NewReader(input)) + if err != nil { + t.Fatalf("failed to parse: %v", err) + } + + t.Logf("Parsed %d statements", len(stmts)) + + // Find statements we know are having issues + problemQueries := map[string]struct { + expectedStart string + expectedEnd string + }{ + "UnfoldNestedData": { + expectedStart: "-- name: UnfoldNestedData :many", + expectedEnd: "WHERE record_id IN (sqlc.slice('record_ids'));", + }, + "AnalyzeArrayElements": { + expectedStart: "-- name: AnalyzeArrayElements :many", + expectedEnd: "GROUP BY product_id, category;", + }, + "ExtractMetadataFromJSON": { + expectedStart: "-- name: ExtractMetadataFromJSON :many", + expectedEnd: "FROM sqlc_example.events;", + }, + } + + // Check each statement + for i, stmt := range stmts { + raw := stmt.Raw + if raw == nil { + continue + } + + location := raw.StmtLocation + length := raw.StmtLen + + if location < 0 || location >= len(input) { + t.Errorf("Statement %d: invalid location %d (input length: %d)", i, location, len(input)) + continue + } + + if location+length > len(input) { + t.Errorf("Statement %d: location+length (%d) exceeds input length (%d)", + i, location+length, len(input)) + continue + } + + extracted := input[location : location+length] + extracted = strings.TrimSpace(extracted) + + // Look for the query name in the extracted text + if strings.Contains(extracted, "-- name:") { + // Extract the query name + lines := strings.Split(extracted, "\n") + if len(lines) > 0 { + firstLine := strings.TrimSpace(lines[0]) + if strings.HasPrefix(firstLine, "-- name:") { + parts := strings.Fields(firstLine) + if len(parts) >= 3 { + queryName := parts[2] + + if check, ok := problemQueries[queryName]; ok { + // Check if it starts correctly + if !strings.HasPrefix(extracted, check.expectedStart) { + t.Errorf("Query %s: doesn't start correctly\nExpected start: %q\nGot: %q", + queryName, check.expectedStart, extracted[:min(len(check.expectedStart)+20, len(extracted))]) + } + + // Check if it ends correctly + if !strings.HasSuffix(extracted, check.expectedEnd) { + t.Errorf("Query %s: doesn't end correctly\nExpected end: %q\nGot: %q", + queryName, check.expectedEnd, extracted[max(0, len(extracted)-len(check.expectedEnd)-20):]) + } + + // Check for contamination from other queries + nameCommentCount := 0 + for _, line := range lines { + if strings.Contains(line, "-- name:") { + nameCommentCount++ + } + } + if nameCommentCount > 1 { + t.Errorf("Query %s contains %d '-- name:' comments (expected 1)", + queryName, nameCommentCount) + } + } + } + } + } + } + } +} diff --git a/internal/engine/clickhouse/parse_test.go b/internal/engine/clickhouse/parse_test.go new file mode 100644 index 0000000000..7d5e631d27 --- /dev/null +++ b/internal/engine/clickhouse/parse_test.go @@ -0,0 +1,2255 @@ +package clickhouse + +import ( + "strings" + "testing" + + "github.com/sqlc-dev/sqlc/internal/sql/ast" + "github.com/sqlc-dev/sqlc/internal/sql/catalog" +) + +func TestParseCreateTable(t *testing.T) { + sql := ` +CREATE TABLE IF NOT EXISTS users +( + id UInt32, + name String, + email String +) +ENGINE = MergeTree() +ORDER BY id; +` + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + stmt := stmts[0] + if stmt.Raw == nil || stmt.Raw.Stmt == nil { + t.Fatal("Statement or Raw.Stmt is nil") + } + + createStmt, ok := stmt.Raw.Stmt.(*ast.CreateTableStmt) + if !ok { + t.Fatalf("Expected CreateTableStmt, got %T", stmt.Raw.Stmt) + } + + if createStmt.Name == nil || createStmt.Name.Name == "" { + t.Fatal("Table name is missing") + } + + if createStmt.Name.Name != "users" { + t.Errorf("Expected table name 'users', got '%s'", createStmt.Name.Name) + } + + if createStmt.Cols == nil || len(createStmt.Cols) == 0 { + t.Fatal("Table columns are missing") + } + + if len(createStmt.Cols) != 3 { + t.Errorf("Expected 3 columns, got %d", len(createStmt.Cols)) + } + + // Check first column + col0 := createStmt.Cols[0] + if col0.Colname != "id" { + t.Errorf("Expected column name 'id', got '%s'", col0.Colname) + } +} + +func TestParseNumberLiterals(t *testing.T) { + tests := []struct { + name string + sql string + wantInt bool + wantVal int64 + wantFloat bool + }{ + { + name: "Integer literal", + sql: "SELECT 42;", + wantInt: true, + wantVal: 42, + }, + { + name: "Large integer literal", + sql: "SELECT 9223372036854775807;", + wantInt: true, + wantVal: 9223372036854775807, + }, + { + name: "Float literal", + sql: "SELECT 3.14;", + wantFloat: true, + }, + { + name: "Scientific notation", + sql: "SELECT 1.5e2;", + wantFloat: true, + }, + { + name: "Zero", + sql: "SELECT 0;", + wantInt: true, + wantVal: 0, + }, + } + + for _, test := range tests { + t.Run(test.name, func(t *testing.T) { + p := NewParser() + stmts, err := p.Parse(strings.NewReader(test.sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + if selectStmt.TargetList == nil || len(selectStmt.TargetList.Items) == 0 { + t.Fatal("Expected at least one target") + } + + target, ok := selectStmt.TargetList.Items[0].(*ast.ResTarget) + if !ok { + t.Fatalf("Expected ResTarget, got %T", selectStmt.TargetList.Items[0]) + } + + if test.wantInt { + constNode, ok := target.Val.(*ast.A_Const) + if !ok { + t.Fatalf("Expected A_Const, got %T", target.Val) + } + + intVal, ok := constNode.Val.(*ast.Integer) + if !ok { + t.Fatalf("Expected Integer, got %T", constNode.Val) + } + + if intVal.Ival != test.wantVal { + t.Errorf("Expected value %d, got %d", test.wantVal, intVal.Ival) + } + } + + if test.wantFloat { + constNode, ok := target.Val.(*ast.A_Const) + if !ok { + t.Fatalf("Expected A_Const, got %T", target.Val) + } + + _, ok = constNode.Val.(*ast.Float) + if !ok { + t.Fatalf("Expected Float, got %T", constNode.Val) + } + } + }) + } +} + +func TestParseWindowFunctions(t *testing.T) { + sql := ` + SELECT + id, + COUNT(*) OVER (PARTITION BY department ORDER BY salary DESC) as rank + FROM employees; + ` + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + // Window functions should be parsed in TargetList + if selectStmt.TargetList == nil || len(selectStmt.TargetList.Items) < 2 { + t.Fatalf("Expected at least 2 targets, got %d", len(selectStmt.TargetList.Items)) + } +} + +func TestParseCastExpression(t *testing.T) { + sql := "SELECT CAST(id AS String), CAST(value AS Float32) FROM table1;" + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + if selectStmt.TargetList == nil || len(selectStmt.TargetList.Items) < 2 { + t.Fatalf("Expected at least 2 targets, got %d", len(selectStmt.TargetList.Items)) + } +} + +func TestParseCaseExpression(t *testing.T) { + sql := ` + SELECT + id, + CASE + WHEN status = 'active' THEN 1 + WHEN status = 'inactive' THEN 0 + ELSE -1 + END as status_code + FROM users; + ` + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + if selectStmt.TargetList == nil || len(selectStmt.TargetList.Items) < 2 { + t.Fatalf("Expected at least 2 targets, got %d", len(selectStmt.TargetList.Items)) + } +} + +func TestParseAggregateQuery(t *testing.T) { + sql := ` + SELECT + department, + COUNT(*) as count, + SUM(salary) as total_salary, + AVG(salary) as avg_salary + FROM employees + GROUP BY department + HAVING COUNT(*) > 10 + ORDER BY total_salary DESC; + ` + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + if selectStmt.GroupClause == nil || len(selectStmt.GroupClause.Items) == 0 { + t.Fatal("GROUP BY clause not parsed") + } + + if selectStmt.HavingClause == nil { + t.Fatal("HAVING clause not parsed") + } + + if selectStmt.SortClause == nil || len(selectStmt.SortClause.Items) == 0 { + t.Fatal("ORDER BY clause not parsed") + } +} + +func TestParseUnionQueries(t *testing.T) { + sql := ` + SELECT id, name FROM users + UNION ALL + SELECT id, name FROM archived_users; + ` + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + if selectStmt.Op != ast.Union { + t.Fatalf("Expected UNION operation, got %v", selectStmt.Op) + } + + if !selectStmt.All { + t.Fatal("Expected UNION ALL (All=true)") + } +} + +func TestParseSubquery(t *testing.T) { + sql := ` + SELECT * FROM ( + SELECT id, name FROM users WHERE id > 100 + ) as filtered_users; + ` + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + if selectStmt.FromClause == nil || len(selectStmt.FromClause.Items) == 0 { + t.Fatal("FROM clause not parsed") + } +} + +func TestParseIsNullExpressions(t *testing.T) { + sql := `SELECT * FROM users WHERE name IS NULL AND email IS NOT NULL;` + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + if selectStmt.WhereClause == nil { + t.Fatal("WHERE clause not parsed") + } +} + +func TestParseMultipleJoins(t *testing.T) { + sql := ` + SELECT + u.id, u.name, p.title, c.content + FROM users u + INNER JOIN posts p ON u.id = p.user_id + LEFT JOIN comments c ON p.id = c.post_id + WHERE u.active = 1 + ORDER BY p.created_at DESC; + ` + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + if selectStmt.FromClause == nil || len(selectStmt.FromClause.Items) == 0 { + t.Fatal("FROM clause not parsed") + } +} + +// TestParseClickHousePrewhere tests PREWHERE support +// PREWHERE is a ClickHouse optimization - executes before WHERE for better performance +func TestParseClickHousePrewhere(t *testing.T) { + sql := `SELECT * FROM events PREWHERE event_type = 'click' WHERE user_id = 123;` + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + // If PREWHERE is parsed as a separate clause, it would be in a different field + // For now, it might be part of WHERE or treated as a TODO + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + // Just verify parsing succeeded + if selectStmt.FromClause == nil { + t.Fatal("FROM clause not parsed") + } +} + +// TestParseClickHouseSample tests SAMPLE support +// SAMPLE is a ClickHouse optimization to read only a portion of data +func TestParseClickHouseSample(t *testing.T) { + sql := `SELECT * FROM events SAMPLE 1/10 WHERE created_at > now() - INTERVAL 1 DAY;` + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + if selectStmt.FromClause == nil { + t.Fatal("FROM clause not parsed") + } +} + +// TestParseClickHouseArrayFunctions tests array function support +// ClickHouse has built-in array operations +func TestParseClickHouseArrayFunctions(t *testing.T) { + sql := `SELECT arrayLength(tags) as tag_count FROM articles WHERE arrayExists(x -> x > 5, scores);` + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + if selectStmt.TargetList == nil || len(selectStmt.TargetList.Items) == 0 { + t.Fatal("SELECT list not parsed") + } +} + +// TestParseStringOperations tests string operations and functions +func TestParseStringOperations(t *testing.T) { + sql := ` + SELECT + concat(first_name, ' ', last_name) as full_name, + length(email) as email_length, + upper(name) as name_upper + FROM users + WHERE email LIKE '%@example.com'; + ` + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + if selectStmt.TargetList == nil || len(selectStmt.TargetList.Items) < 3 { + t.Fatalf("Expected 3+ targets, got %d", len(selectStmt.TargetList.Items)) + } +} + +// TestParsePositionalParameter tests positional parameters (?) +func TestParsePositionalParameter(t *testing.T) { + sql := "SELECT * FROM users WHERE id = ? AND name = ?;" + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + if selectStmt.WhereClause == nil { + t.Fatal("WHERE clause not parsed") + } + + // Check that we have at least one ParamRef in the WHERE clause + paramRefs := findParamRefs(selectStmt.WhereClause) + if len(paramRefs) == 0 { + t.Fatal("Expected ParamRef nodes in WHERE clause") + } +} + +// Helper to find all ParamRef nodes in an AST +func findParamRefs(node ast.Node) []*ast.ParamRef { + var refs []*ast.ParamRef + var walkNode func(ast.Node) + walkNode = func(n ast.Node) { + if pr, ok := n.(*ast.ParamRef); ok { + refs = append(refs, pr) + } + switch v := n.(type) { + case *ast.A_Expr: + if v.Lexpr != nil { + walkNode(v.Lexpr) + } + if v.Rexpr != nil { + walkNode(v.Rexpr) + } + case *ast.List: + if v != nil { + for _, item := range v.Items { + walkNode(item) + } + } + } + } + walkNode(node) + return refs +} + +// findSqlcFunctionCalls finds all sqlc.* function calls with the given function name +func findSqlcFunctionCalls(node ast.Node, funcName string) []*ast.FuncCall { + var calls []*ast.FuncCall + var walkNode func(ast.Node) + walkNode = func(n ast.Node) { + if fc, ok := n.(*ast.FuncCall); ok { + // Check if this is a sqlc.* function call + if fc.Func != nil && fc.Func.Schema == "sqlc" && fc.Func.Name == funcName { + calls = append(calls, fc) + } + } + switch v := n.(type) { + case *ast.A_Expr: + if v.Lexpr != nil { + walkNode(v.Lexpr) + } + if v.Rexpr != nil { + walkNode(v.Rexpr) + } + case *ast.List: + if v != nil { + for _, item := range v.Items { + walkNode(item) + } + } + } + } + walkNode(node) + return calls +} + +// TestInsertIntoSelect tests INSERT INTO ... SELECT +func TestInsertIntoSelect(t *testing.T) { + sql := ` + INSERT INTO analytics.summary (date, count) + SELECT toDate(timestamp) as date, COUNT(*) as count + FROM events + GROUP BY toDate(timestamp); + ` + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + insertStmt, ok := stmts[0].Raw.Stmt.(*ast.InsertStmt) + if !ok { + t.Fatalf("Expected InsertStmt, got %T", stmts[0].Raw.Stmt) + } + + if insertStmt.Relation == nil { + t.Fatal("INSERT target table not parsed") + } + + if insertStmt.SelectStmt == nil { + t.Fatal("INSERT SELECT statement not parsed") + } +} + +// TestParseDistinct tests DISTINCT clause +func TestParseDistinct(t *testing.T) { + sql := `SELECT DISTINCT country FROM users ORDER BY country;` + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + if selectStmt.DistinctClause == nil { + t.Fatal("DISTINCT clause not parsed") + } +} + +// TestParseWithCTE tests Common Table Expressions (CTEs) +func TestParseWithCTE(t *testing.T) { + sql := ` + WITH recent_events AS ( + SELECT id, user_id, event_type, timestamp + FROM events + WHERE timestamp > now() - INTERVAL 7 DAY + ) + SELECT user_id, COUNT(*) as event_count + FROM recent_events + GROUP BY user_id; + ` + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + if selectStmt.WithClause == nil { + t.Fatal("WITH clause not parsed") + } +} + +// TestParseNamedParameterSqlcArg tests sqlc.arg() function syntax +// sqlc.arg() is converted to sqlc_arg() during preprocessing, then converted +// back to sqlc.arg in the AST with proper schema/function name separation +func TestParseNamedParameterSqlcArg(t *testing.T) { + sql := "SELECT * FROM users WHERE id = sqlc.arg('user_id') AND name = sqlc.arg('name');" + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + if selectStmt.WhereClause == nil { + t.Fatal("WHERE clause not parsed") + } + + // Should find sqlc.arg() function calls in the WHERE clause + funcCalls := findSqlcFunctionCalls(selectStmt.WhereClause, "arg") + if len(funcCalls) != 2 { + t.Fatalf("Expected 2 sqlc.arg() calls, found %d", len(funcCalls)) + } +} + +// TestParseNamedParameterSqlcNarg tests sqlc.narg() function syntax +// sqlc.narg() is converted to sqlc_narg() during preprocessing, then converted +// back to sqlc.narg in the AST with proper schema/function name separation +func TestParseNamedParameterSqlcNarg(t *testing.T) { + sql := "SELECT * FROM users WHERE status = sqlc.narg('optional_status');" + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + if selectStmt.WhereClause == nil { + t.Fatal("WHERE clause not parsed") + } + + // Should find sqlc.narg() function call + funcCalls := findSqlcFunctionCalls(selectStmt.WhereClause, "narg") + if len(funcCalls) != 1 { + t.Fatalf("Expected 1 sqlc.narg() call, found %d", len(funcCalls)) + } +} + +// TestParseNamedParameterSqlcSlice tests sqlc.slice() function syntax +// sqlc.slice() is converted to sqlc_slice() during preprocessing, then converted +// back to sqlc.slice in the AST with proper schema/function name separation +func TestParseNamedParameterSqlcSlice(t *testing.T) { + sql := "SELECT * FROM users WHERE status IN sqlc.slice('statuses');" + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + if selectStmt.WhereClause == nil { + t.Fatal("WHERE clause not parsed") + } + + // Should find sqlc.slice() function call + funcCalls := findSqlcFunctionCalls(selectStmt.WhereClause, "slice") + if len(funcCalls) != 1 { + t.Fatalf("Expected 1 sqlc.slice() call, found %d", len(funcCalls)) + } +} + +// TestParseNamedParameterMultipleFunctions tests using multiple sqlc.* functions +func TestParseNamedParameterMultipleFunctions(t *testing.T) { + sql := ` + SELECT u.id, u.name, p.title + FROM users u + LEFT JOIN posts p ON u.id = p.user_id + WHERE u.id = sqlc.arg('user_id') AND u.status = sqlc.narg('status') + AND p.category IN sqlc.slice('categories') + ORDER BY p.created_at DESC; + ` + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + if selectStmt.WhereClause == nil { + t.Fatal("WHERE clause not parsed") + } + + // Should find all three types of sqlc functions + argCalls := findSqlcFunctionCalls(selectStmt.WhereClause, "arg") + nargCalls := findSqlcFunctionCalls(selectStmt.WhereClause, "narg") + sliceCalls := findSqlcFunctionCalls(selectStmt.WhereClause, "slice") + + if len(argCalls) != 1 { + t.Fatalf("Expected 1 sqlc.arg() call, found %d", len(argCalls)) + } + if len(nargCalls) != 1 { + t.Fatalf("Expected 1 sqlc.narg() call, found %d", len(nargCalls)) + } + if len(sliceCalls) != 1 { + t.Fatalf("Expected 1 sqlc.slice() call, found %d", len(sliceCalls)) + } +} + +// TestParseShow tests SHOW statements +func TestParseShow(t *testing.T) { + sql := "SHOW TABLES;" + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + // SHOW statements return TODO as they're introspection queries + if stmts[0].Raw == nil || stmts[0].Raw.Stmt == nil { + t.Fatal("Statement or Raw.Stmt is nil") + } +} + +// TestParseTruncate tests TRUNCATE statements +func TestParseTruncate(t *testing.T) { + sql := "TRUNCATE TABLE users;" + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + // TRUNCATE statements return TODO as they're maintenance operations + if stmts[0].Raw == nil || stmts[0].Raw.Stmt == nil { + t.Fatal("Statement or Raw.Stmt is nil") + } +} + +// TestPreprocessNamedParameters tests the preprocessing function directly +// Preprocessing converts sqlc.* to sqlc_* (same length) so ClickHouse parser recognizes them as functions +func TestPreprocessNamedParameters(t *testing.T) { + tests := []struct { + name string + input string + expected string + }{ + { + name: "sqlc.arg with single quotes", + input: "WHERE id = sqlc.arg('user_id')", + expected: "WHERE id = sqlc_arg('user_id')", + }, + { + name: "sqlc.arg with double quotes", + input: `WHERE id = sqlc.arg("user_id")`, + expected: `WHERE id = sqlc_arg("user_id")`, + }, + { + name: "sqlc.narg", + input: "WHERE status = sqlc.narg('status')", + expected: "WHERE status = sqlc_narg('status')", + }, + { + name: "sqlc.slice", + input: "WHERE id IN sqlc.slice('ids')", + expected: "WHERE id IN sqlc_slice('ids')", + }, + { + name: "Multiple sqlc functions", + input: "WHERE id = sqlc.arg('id') AND status = sqlc.narg('status')", + expected: "WHERE id = sqlc_arg('id') AND status = sqlc_narg('status')", + }, + { + name: "With whitespace", + input: "WHERE id = sqlc.arg ( 'user_id' )", + expected: "WHERE id = sqlc_arg ( 'user_id' )", + }, + } + + for _, test := range tests { + t.Run(test.name, func(t *testing.T) { + result := preprocessNamedParameters(test.input) + if result != test.expected { + t.Errorf("Expected %q, got %q", test.expected, result) + } + }) + } +} + +// TestParseUniqExact tests uniqExact aggregate function +func TestParseUniqExact(t *testing.T) { + sql := ` + SELECT + user_id, + uniqExact(event_id) as unique_events + FROM events + GROUP BY user_id; + ` + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + if selectStmt.TargetList == nil || len(selectStmt.TargetList.Items) < 2 { + t.Fatalf("Expected at least 2 targets, got %d", len(selectStmt.TargetList.Items)) + } + + // Check that the uniqExact function is in the target list + hasUniqExact := false + for _, item := range selectStmt.TargetList.Items { + if target, ok := item.(*ast.ResTarget); ok { + if funcCall, ok := target.Val.(*ast.FuncCall); ok { + if funcCall.Func.Name == "uniqexact" { + hasUniqExact = true + break + } + } + } + } + + if !hasUniqExact { + t.Fatal("Expected uniqExact function in target list") + } +} + +// TestParseUniqExactIf tests uniqExactIf conditional aggregate function +func TestParseUniqExactIf(t *testing.T) { + sql := ` + SELECT + user_id, + uniqExactIf(event_id, event_type = 'click') as unique_clicks + FROM events + GROUP BY user_id; + ` + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + if selectStmt.TargetList == nil || len(selectStmt.TargetList.Items) < 2 { + t.Fatalf("Expected at least 2 targets, got %d", len(selectStmt.TargetList.Items)) + } + + // Check that the uniqExactIf function is in the target list with 2 arguments + hasUniqExactIf := false + for _, item := range selectStmt.TargetList.Items { + if target, ok := item.(*ast.ResTarget); ok { + if funcCall, ok := target.Val.(*ast.FuncCall); ok { + if funcCall.Func.Name == "uniqexactif" && len(funcCall.Args.Items) == 2 { + hasUniqExactIf = true + break + } + } + } + } + + if !hasUniqExactIf { + t.Fatal("Expected uniqExactIf function with 2 arguments in target list") + } +} + +// TestParseArgMax tests argMax aggregate function +func TestParseArgMax(t *testing.T) { + sql := ` + SELECT + user_id, + argMax(event_name, timestamp) as latest_event + FROM events + GROUP BY user_id; + ` + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + if selectStmt.TargetList == nil || len(selectStmt.TargetList.Items) < 2 { + t.Fatalf("Expected at least 2 targets, got %d", len(selectStmt.TargetList.Items)) + } + + // Check that argMax function with 2 arguments is present + hasArgMax := false + for _, item := range selectStmt.TargetList.Items { + if target, ok := item.(*ast.ResTarget); ok { + if funcCall, ok := target.Val.(*ast.FuncCall); ok { + if funcCall.Func.Name == "argmax" && len(funcCall.Args.Items) == 2 { + hasArgMax = true + break + } + } + } + } + + if !hasArgMax { + t.Fatal("Expected argMax function with 2 arguments in target list") + } +} + +// TestParseArgMaxIf tests argMaxIf conditional aggregate function +func TestParseArgMaxIf(t *testing.T) { + sql := ` + SELECT + user_id, + argMaxIf(event_name, timestamp, event_type = 'purchase') as latest_purchase + FROM events + GROUP BY user_id; + ` + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + if selectStmt.TargetList == nil || len(selectStmt.TargetList.Items) < 2 { + t.Fatalf("Expected at least 2 targets, got %d", len(selectStmt.TargetList.Items)) + } + + // Check that argMaxIf function with 3 arguments is present + hasArgMaxIf := false + for _, item := range selectStmt.TargetList.Items { + if target, ok := item.(*ast.ResTarget); ok { + if funcCall, ok := target.Val.(*ast.FuncCall); ok { + if funcCall.Func.Name == "argmaxif" && len(funcCall.Args.Items) == 3 { + hasArgMaxIf = true + break + } + } + } + } + + if !hasArgMaxIf { + t.Fatal("Expected argMaxIf function with 3 arguments in target list") + } +} + +// TestParseCountIf tests countIf conditional aggregate function +func TestParseCountIf(t *testing.T) { + sql := ` + SELECT + user_id, + count() as total_events, + countIf(event_type = 'click') as click_count, + countIf(event_type = 'view') as view_count + FROM events + GROUP BY user_id; + ` + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + if selectStmt.TargetList == nil || len(selectStmt.TargetList.Items) < 4 { + t.Fatalf("Expected at least 4 targets, got %d", len(selectStmt.TargetList.Items)) + } + + // Count countIf functions + countIfCount := 0 + for _, item := range selectStmt.TargetList.Items { + if target, ok := item.(*ast.ResTarget); ok { + if funcCall, ok := target.Val.(*ast.FuncCall); ok { + if funcCall.Func.Name == "countif" { + countIfCount++ + } + } + } + } + + if countIfCount != 2 { + t.Errorf("Expected 2 countIf functions, got %d", countIfCount) + } +} + +// TestParseMultipleAggregatesFunctions tests multiple aggregate functions together +func TestParseMultipleAggregateFunctions(t *testing.T) { + sql := ` + SELECT + category, + COUNT(*) as count, + SUM(amount) as total, + AVG(amount) as average, + MIN(amount) as min_amount, + MAX(amount) as max_amount, + uniqExact(customer_id) as unique_customers, + countIf(status = 'completed') as completed_orders, + argMax(product_name, amount) as top_product + FROM orders + WHERE created_at >= sqlc.arg('start_date') + GROUP BY category + HAVING COUNT(*) > sqlc.arg('min_orders') + ORDER BY total DESC; + ` + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + if selectStmt.TargetList == nil || len(selectStmt.TargetList.Items) < 9 { + t.Fatalf("Expected at least 9 targets, got %d", len(selectStmt.TargetList.Items)) + } + + // Verify all expected functions are present + functionNames := make(map[string]int) + for _, item := range selectStmt.TargetList.Items { + if target, ok := item.(*ast.ResTarget); ok { + if funcCall, ok := target.Val.(*ast.FuncCall); ok { + functionNames[funcCall.Func.Name]++ + } + } + } + + expectedFunctions := map[string]int{ + "count": 1, + "sum": 1, + "avg": 1, + "min": 1, + "max": 1, + "uniqexact": 1, + "countif": 1, + "argmax": 1, + } + + for funcName, expectedCount := range expectedFunctions { + if count, ok := functionNames[funcName]; !ok || count < expectedCount { + t.Errorf("Expected function %s with count >= %d, got %d", funcName, expectedCount, count) + } + } + + // Verify WHERE clause with named parameters + if selectStmt.WhereClause == nil { + t.Fatal("Expected WHERE clause") + } + + // Verify GROUP BY + if selectStmt.GroupClause == nil { + t.Fatal("Expected GROUP BY clause") + } + + // Verify HAVING + if selectStmt.HavingClause == nil { + t.Fatal("Expected HAVING clause") + } + + // Verify ORDER BY + if selectStmt.SortClause == nil { + t.Fatal("Expected ORDER BY clause") + } +} + +// TestParseAggregatesWithWindow tests mixing aggregate and window functions +func TestParseAggregatesWithWindow(t *testing.T) { + sql := ` + SELECT + user_id, + event_count, + ROW_NUMBER() OVER (ORDER BY event_count DESC) as rank, + uniqExact(session_id) as unique_sessions, + SUM(event_count) OVER (PARTITION BY user_type ORDER BY event_count) as running_total + FROM ( + SELECT + user_id, + user_type, + COUNT(*) as event_count, + countIf(event_type = 'purchase') as purchase_count + FROM events + GROUP BY user_id, user_type + ) + ORDER BY event_count DESC; + ` + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + // Verify main target list + if selectStmt.TargetList == nil || len(selectStmt.TargetList.Items) < 5 { + t.Fatalf("Expected at least 5 targets, got %d", len(selectStmt.TargetList.Items)) + } + + // Check for window functions + hasWindowFunc := false + for _, item := range selectStmt.TargetList.Items { + if target, ok := item.(*ast.ResTarget); ok { + if funcCall, ok := target.Val.(*ast.FuncCall); ok { + if funcCall.Over != nil { + hasWindowFunc = true + break + } + } + } + } + + if !hasWindowFunc { + t.Fatal("Expected at least one window function (OVER clause)") + } + + // Verify FROM clause is a subquery + if selectStmt.FromClause == nil || len(selectStmt.FromClause.Items) == 0 { + t.Fatal("Expected FROM clause with subquery") + } +} + +// TestParseArgMinArgMax tests both argMin and argMax together +func TestParseArgMinArgMax(t *testing.T) { + sql := ` + SELECT + product_id, + argMin(price, timestamp) as min_price_time, + argMax(price, timestamp) as max_price_time, + argMinIf(price, timestamp, status = 'active') as min_active_price, + argMaxIf(price, timestamp, status = 'active') as max_active_price + FROM price_history + GROUP BY product_id; + ` + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + if selectStmt.TargetList == nil || len(selectStmt.TargetList.Items) < 5 { + t.Fatalf("Expected at least 5 targets, got %d", len(selectStmt.TargetList.Items)) + } + + // Count each function type + functionCounts := make(map[string]int) + for _, item := range selectStmt.TargetList.Items { + if target, ok := item.(*ast.ResTarget); ok { + if funcCall, ok := target.Val.(*ast.FuncCall); ok { + functionCounts[funcCall.Func.Name]++ + } + } + } + + expectedFunctions := []string{"argmin", "argmax", "argminif", "argmaxif"} + for _, funcName := range expectedFunctions { + if count, ok := functionCounts[funcName]; !ok || count == 0 { + t.Errorf("Expected function %s to be present", funcName) + } + } +} + +// TestParseUniqWithModifiers tests uniq functions with different modifiers +func TestParseUniqWithModifiers(t *testing.T) { + sql := ` + SELECT + date, + uniq(user_id) as unique_users, + uniqIf(user_id, user_type = 'premium') as premium_users, + uniqHLL12(user_id) as approx_unique_users, + uniqExact(user_id) as exact_unique_users + FROM events + WHERE date >= sqlc.arg('start_date') AND date <= sqlc.arg('end_date') + GROUP BY date + ORDER BY date; + ` + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + if selectStmt.TargetList == nil || len(selectStmt.TargetList.Items) < 5 { + t.Fatalf("Expected at least 5 targets, got %d", len(selectStmt.TargetList.Items)) + } + + // Count uniq variants + uniqVariants := make(map[string]int) + for _, item := range selectStmt.TargetList.Items { + if target, ok := item.(*ast.ResTarget); ok { + if funcCall, ok := target.Val.(*ast.FuncCall); ok { + if strings.HasPrefix(strings.ToLower(funcCall.Func.Name), "uniq") { + uniqVariants[funcCall.Func.Name]++ + } + } + } + } + + expectedVariants := []string{"uniq", "uniqif", "uniqhll12", "uniqexact"} + for _, variant := range expectedVariants { + if count, ok := uniqVariants[variant]; !ok || count == 0 { + t.Errorf("Expected uniq variant %s to be present", variant) + } + } +} + +// TestParseStatisticalAggregates tests statistical aggregate functions +func TestParseStatisticalAggregates(t *testing.T) { + sql := ` + SELECT + varSamp(value) as variance_sample, + varPop(value) as variance_population, + stddevSamp(value) as stddev_sample, + stddevPop(value) as stddev_population, + covarSamp(x, y) as covariance_sample, + covarPop(x, y) as covariance_population, + corr(x, y) as correlation + FROM metrics; + ` + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + if selectStmt.TargetList == nil || len(selectStmt.TargetList.Items) < 7 { + t.Fatalf("Expected at least 7 targets, got %d", len(selectStmt.TargetList.Items)) + } + + // Count statistical functions + statFunctions := make(map[string]int) + for _, item := range selectStmt.TargetList.Items { + if target, ok := item.(*ast.ResTarget); ok { + if funcCall, ok := target.Val.(*ast.FuncCall); ok { + funcName := strings.ToLower(funcCall.Func.Name) + statFunctions[funcName]++ + } + } + } + + expectedFunctions := map[string]int{ + "varsamp": 1, + "varpop": 1, + "stddevsamp": 1, + "stddevpop": 1, + "covarsamp": 1, + "covarpop": 1, + "corr": 1, + } + + for funcName, expectedCount := range expectedFunctions { + if count, ok := statFunctions[funcName]; !ok || count < expectedCount { + t.Errorf("Expected function %s with count >= %d, got %d", funcName, expectedCount, count) + } + } +} + +// TestParseConditionalAggregatesVariants tests minIf and other conditional variants +func TestParseConditionalAggregatesVariants(t *testing.T) { + sql := ` + SELECT + minIf(price, status = 'active') as min_active_price, + maxIf(price, status = 'active') as max_active_price, + sumIf(amount, quantity > 0) as positive_amount, + avgIf(value, value IS NOT NULL) as avg_non_null + FROM orders + GROUP BY category; + ` + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + if selectStmt.TargetList == nil || len(selectStmt.TargetList.Items) < 4 { + t.Fatalf("Expected at least 4 targets, got %d", len(selectStmt.TargetList.Items)) + } + + // Verify conditional aggregates are present + conditionalFunctions := make(map[string]int) + for _, item := range selectStmt.TargetList.Items { + if target, ok := item.(*ast.ResTarget); ok { + if funcCall, ok := target.Val.(*ast.FuncCall); ok { + funcName := strings.ToLower(funcCall.Func.Name) + if strings.HasSuffix(funcName, "if") { + conditionalFunctions[funcName]++ + } + } + } + } + + expectedConditionals := []string{"minif", "maxif", "sumif", "avgif"} + for _, funcName := range expectedConditionals { + if count, ok := conditionalFunctions[funcName]; !ok || count == 0 { + t.Errorf("Expected function %s to be present", funcName) + } + } +} + +// TestParseInOperator tests IN operator with value lists +func TestParseInOperator(t *testing.T) { + sql := ` + SELECT id, name, status + FROM users + WHERE id IN (1, 2, 3, 4, 5) + AND status IN ('active', 'pending') + ORDER BY id; + ` + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + // Verify WHERE clause exists + if selectStmt.WhereClause == nil { + t.Fatal("Expected WHERE clause") + } + + // Verify ORDER BY exists + if selectStmt.SortClause == nil { + t.Fatal("Expected ORDER BY clause") + } +} + +// TestParseTOPClause tests TOP clause (ClickHouse LIMIT alternative) +func TestParseTOPClause(t *testing.T) { + sql := "SELECT TOP 10 my_column FROM tableName;" + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + // TOP clause is a valid ClickHouse syntax - parser should handle it + // It may be stored in TargetList or as a special node depending on parser + if selectStmt.TargetList == nil || len(selectStmt.TargetList.Items) == 0 { + t.Fatal("Expected target list") + } +} + +// TestParseOrderByWithFill tests ORDER BY ... WITH FILL time series feature +func TestParseOrderByWithFill(t *testing.T) { + tests := []struct { + name string + sql string + }{ + { + name: "Basic WITH FILL", + sql: ` + SELECT n FROM data + ORDER BY n WITH FILL; + `, + }, + { + name: "WITH FILL FROM TO", + sql: ` + SELECT date, value FROM timeseries + ORDER BY date WITH FILL FROM '2024-01-01' TO '2024-01-10'; + `, + }, + { + name: "WITH FILL numeric STEP", + sql: ` + SELECT day, metric FROM series + ORDER BY day WITH FILL STEP 1; + `, + }, + } + + for _, tt := range tests { + t.Run(tt.name, func(t *testing.T) { + p := NewParser() + stmts, err := p.Parse(strings.NewReader(tt.sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + // Verify ORDER BY clause exists (WITH FILL is part of ORDER BY) + if selectStmt.SortClause == nil { + t.Fatal("Expected ORDER BY clause with FILL") + } + }) + } +} + +// TestParseTypeCastOperator tests :: operator for type casting +func TestParseTypeCastOperator(t *testing.T) { + sql := ` + SELECT + timestamp_col::DateTime, + amount::Float32, + id::String, + flag::Boolean + FROM data + WHERE created_at::Date >= '2024-01-01'; + ` + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + // Verify target list + if selectStmt.TargetList == nil || len(selectStmt.TargetList.Items) < 4 { + t.Fatalf("Expected at least 4 targets, got %d", + len(selectStmt.TargetList.Items)) + } + + // Verify WHERE clause + if selectStmt.WhereClause == nil { + t.Fatal("Expected WHERE clause") + } +} + +// TestParseArrayJoin tests ARRAY JOIN clause for unfolding arrays into rows +func TestParseArrayJoin(t *testing.T) { + tests := []struct { + name string + sql string + expectJoinType string + }{ + { + name: "Basic ARRAY JOIN", + sql: ` + SELECT id, tag + FROM users + ARRAY JOIN tags AS tag; + `, + expectJoinType: "", + }, + // Note: LEFT ARRAY JOIN is not properly supported by clickhouse-sql-parser v0.4.16 + // The parser returns nil for ArrayJoin when LEFT is specified + // This is a known limitation of the parser library + /* + { + name: "LEFT ARRAY JOIN", + sql: ` + SELECT id, tag + FROM users + LEFT ARRAY JOIN tags AS tag; + `, + expectJoinType: "LEFT", + }, + */ + { + name: "ARRAY JOIN with WHERE and ORDER BY", + sql: ` + SELECT user_id, param_key, param_value + FROM events + ARRAY JOIN params AS param + WHERE user_id = ? + ORDER BY param_key; + `, + expectJoinType: "", + }, + } + + for _, test := range tests { + t.Run(test.name, func(t *testing.T) { + p := NewParser() + stmts, err := p.Parse(strings.NewReader(test.sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + // ARRAY JOIN should be integrated into FROM clause + if selectStmt.FromClause == nil || len(selectStmt.FromClause.Items) == 0 { + t.Fatal("Expected FROM clause with ARRAY JOIN") + } + + // Check for RangeSubselect (our representation of ARRAY JOIN) + hasArrayJoin := false + for _, item := range selectStmt.FromClause.Items { + if rangeSubselect, ok := item.(*ast.RangeSubselect); ok { + hasArrayJoin = true + + // Verify the RangeSubselect has a Subquery (synthetic SELECT statement) + if rangeSubselect.Subquery == nil { + t.Error("Expected RangeSubselect to have a Subquery") + continue + } + + syntheticSelect, ok := rangeSubselect.Subquery.(*ast.SelectStmt) + if !ok { + t.Errorf("Expected SelectStmt subquery, got %T", rangeSubselect.Subquery) + continue + } + + if syntheticSelect.TargetList == nil || len(syntheticSelect.TargetList.Items) == 0 { + t.Error("Expected synthetic SELECT to have target list") + } + } + } + + if !hasArrayJoin { + t.Error("Expected ARRAY JOIN to be present in FROM clause") + } + }) + } +} + +// TestParseArrayJoinWithNamedParameters tests ARRAY JOIN with named parameters +func TestParseArrayJoinWithNamedParameters(t *testing.T) { + sql := ` + SELECT + user_id, + event_name, + property_key, + property_value + FROM events + ARRAY JOIN properties AS prop + WHERE user_id = sqlc.arg('user_id') + AND event_date >= sqlc.arg('start_date') + ORDER BY event_time DESC; + ` + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + // Verify ARRAY JOIN in FROM clause + if selectStmt.FromClause == nil || len(selectStmt.FromClause.Items) == 0 { + t.Fatal("Expected FROM clause with ARRAY JOIN") + } + + // Verify WHERE clause exists (contains named parameters) + if selectStmt.WhereClause == nil { + t.Fatal("Expected WHERE clause") + } + + // Verify ORDER BY exists + if selectStmt.SortClause == nil { + t.Fatal("Expected ORDER BY clause") + } +} + +// TestParseArrayJoinMultiple tests ARRAY JOIN with multiple array columns +func TestParseArrayJoinMultiple(t *testing.T) { + sql := ` + SELECT + id, + nested_value + FROM table_with_nested + ARRAY JOIN nested.field1, nested.field2 + WHERE id > 0; + ` + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + // Verify FROM clause contains ARRAY JOIN + if selectStmt.FromClause == nil || len(selectStmt.FromClause.Items) == 0 { + t.Fatal("Expected FROM clause with ARRAY JOIN") + } +} + +// TestParseComplexAggregationWithNamedParams combines statistical functions with named parameters +func TestParseComplexAggregationWithNamedParams(t *testing.T) { + sql := ` + SELECT + date_col, + COUNT(*) as count, + varSamp(metric_value) as variance, + corr(value_x, value_y) as correlation, + countIf(status = 'success') as successes, + maxIf(score, score IS NOT NULL) as max_valid_score + FROM events + WHERE date_col >= sqlc.arg('start_date') AND date_col <= sqlc.arg('end_date') + GROUP BY date_col + HAVING COUNT(*) > sqlc.arg('min_events') + ORDER BY date_col DESC; + ` + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + // Verify all clauses present + if selectStmt.TargetList == nil || len(selectStmt.TargetList.Items) < 6 { + t.Fatalf("Expected at least 6 targets") + } + if selectStmt.WhereClause == nil { + t.Fatal("Expected WHERE clause") + } + if selectStmt.GroupClause == nil { + t.Fatal("Expected GROUP BY clause") + } + if selectStmt.HavingClause == nil { + t.Fatal("Expected HAVING clause") + } + if selectStmt.SortClause == nil { + t.Fatal("Expected ORDER BY clause") + } +} + +// TestParseArrayJoinFunction tests arrayJoin() as a table function in SELECT list +func TestParseArrayJoinFunction(t *testing.T) { + tests := []struct { + name string + sql string + }{ + { + name: "arrayJoin() in SELECT", + sql: ` + SELECT arrayJoin(categories) AS category + FROM products; + `, + }, + { + name: "arrayJoin() with nested function", + sql: ` + SELECT + product_id, + arrayJoin(JSONExtract(metadata, 'Array(String)')) as tag + FROM products + WHERE product_id = ?; + `, + }, + { + name: "arrayJoin() with window function", + sql: ` + SELECT + product_id, + arrayJoin(categories) AS category, + COUNT(*) OVER (PARTITION BY category) as category_count + FROM products + WHERE product_id = ? + GROUP BY product_id, category; + `, + }, + { + name: "arrayJoin() with named parameters", + sql: ` + SELECT + user_id, + arrayJoin(tags) AS tag + FROM users + WHERE user_id = sqlc.arg('user_id') + ORDER BY tag; + `, + }, + { + name: "Multiple columns with arrayJoin()", + sql: ` + SELECT + id, + name, + arrayJoin(items) AS item + FROM orders; + `, + }, + { + name: "arrayJoin() with JSONExtract", + sql: ` + SELECT + MetadataPlatformId, + arrayJoin(JSONExtract(JsonValue, 'Array(String)')) as self_help_id + FROM events; + `, + }, + } + + for _, test := range tests { + t.Run(test.name, func(t *testing.T) { + p := NewParser() + stmts, err := p.Parse(strings.NewReader(test.sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + // Verify arrayJoin function is in target list + if selectStmt.TargetList == nil || len(selectStmt.TargetList.Items) == 0 { + t.Fatal("Expected at least one target in SELECT list") + } + + // Look for arrayJoin function call in the targets + hasArrayJoinFunc := false + for _, item := range selectStmt.TargetList.Items { + if target, ok := item.(*ast.ResTarget); ok { + if funcCall, ok := target.Val.(*ast.FuncCall); ok { + if funcCall.Func.Name == "arrayjoin" { + hasArrayJoinFunc = true + break + } + } + } + } + + if !hasArrayJoinFunc { + t.Error("Expected arrayJoin() function call in SELECT list") + } + }) + } +} + +func TestLocationIndexing(t *testing.T) { + // Test to verify Location indexing is 0-based or 1-based + sql := "SELECT sqlc_arg('test')" + // Position map: + // 0-indexed: S=0, E=1, L=2, E=3, C=4, T=5, space=6, s=7, q=8, l=9, c=10, _=11, a=12, r=13, g=14, (=15 + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) != 1 { + t.Fatalf("Expected 1 statement, got %d", len(stmts)) + } + + stmt := stmts[0] + if stmt.Raw == nil || stmt.Raw.Stmt == nil { + t.Fatal("Statement or Raw.Stmt is nil") + } + + selectStmt, ok := stmt.Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmt.Raw.Stmt) + } + + if selectStmt.TargetList == nil || len(selectStmt.TargetList.Items) == 0 { + t.Fatal("No target items") + } + + // Get the FuncCall node + resTarget := selectStmt.TargetList.Items[0].(*ast.ResTarget) + funcCall, ok := resTarget.Val.(*ast.FuncCall) + if !ok { + t.Fatalf("Expected FuncCall, got %T", resTarget.Val) + } + + // The Location should point to 'sqlc_arg' in the parsed SQL + // In "SELECT sqlc_arg('test')", 's' of 'sqlc_arg' is at 0-indexed position 7 + t.Logf("FuncCall.Location: %d", funcCall.Location) + t.Logf("SQL: \"%s\"", sql) + t.Logf("Expected location: 7 (0-indexed position of 's' in 'sqlc_arg')") + + // Extract substring at that location + if funcCall.Location >= 0 && funcCall.Location < len(sql) { + t.Logf("Character at Location: %c (expecting 's')", sql[funcCall.Location]) + } +} + +// TestImprovedTypeInference verifies that unqualified column references +// in function arguments can be resolved from the catalog +func TestImprovedTypeInference(t *testing.T) { + tests := []struct { + name string + sql string + }{ + { + name: "arrayJoin with unqualified column reference", + sql: `SELECT arrayJoin(categories) AS category FROM products`, + }, + { + name: "argMin with unqualified column reference", + sql: `SELECT argMin(price, id) AS min_price FROM products`, + }, + { + name: "argMax with unqualified column reference", + sql: `SELECT argMax(name, timestamp) AS max_name FROM products`, + }, + { + name: "Array() literal in function", + sql: `SELECT arrayJoin(Array('a', 'b', 'c')) AS element`, + }, + { + name: "CAST expression in function", + sql: `SELECT CAST(price AS String) FROM products`, + }, + } + + for _, tt := range tests { + t.Run(tt.name, func(t *testing.T) { + p := NewParser() + stmts, err := p.Parse(strings.NewReader(tt.sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) == 0 { + t.Fatal("Expected at least 1 statement") + } + + // Just verify the query parses without TODO nodes + // The type inference happens during conversion + stmt := stmts[0] + if stmt.Raw.Stmt == nil { + t.Fatal("Expected non-nil statement") + } + }) + } +} + +// TestCountStar verifies that COUNT(*) parses correctly +func TestCountStar(t *testing.T) { + sql := `SELECT COUNT(*) FROM products` + + p := NewParser() + stmts, err := p.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) == 0 { + t.Fatal("Expected at least 1 statement") + } + + stmt := stmts[0] + if stmt.Raw.Stmt == nil { + t.Fatal("Expected non-nil statement") + } + + selectStmt, ok := stmt.Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmt.Raw.Stmt) + } + + if len(selectStmt.TargetList.Items) == 0 { + t.Fatal("Expected target list items") + } + + resTarget, ok := selectStmt.TargetList.Items[0].(*ast.ResTarget) + if !ok { + t.Fatalf("Expected ResTarget, got %T", selectStmt.TargetList.Items[0]) + } + + funcCall, ok := resTarget.Val.(*ast.FuncCall) + if !ok { + t.Fatalf("Expected FuncCall, got %T", resTarget.Val) + } + + if funcCall.Func.Name != "count" { + t.Fatalf("Expected function name 'count', got '%s'", funcCall.Func.Name) + } + + t.Logf("COUNT(*) parsed successfully with %d arguments", len(funcCall.Args.Items)) + for i, arg := range funcCall.Args.Items { + t.Logf(" Arg %d: %T", i, arg) + if colRef, ok := arg.(*ast.ColumnRef); ok { + t.Logf(" ColumnRef with %d fields", len(colRef.Fields.Items)) + if len(colRef.Fields.Items) > 0 { + t.Logf(" Field 0 type: %T", colRef.Fields.Items[0]) + if _, ok := colRef.Fields.Items[0].(*ast.A_Star); ok { + t.Logf(" -> Contains A_Star") + } + if str, ok := colRef.Fields.Items[0].(*ast.String); ok { + t.Logf(" -> String: '%s'", str.Str) + } + } + } + } +} + +// TestCatalogHasCountFunction verifies COUNT is registered in the catalog +func TestCatalogHasCountFunction(t *testing.T) { + cat := NewCatalog() + + // Try to find the COUNT function + funcs, err := cat.ListFuncsByName(&ast.FuncName{Name: "count"}) + if err != nil { + t.Fatalf("ListFuncsByName failed: %v", err) + } + + if len(funcs) == 0 { + t.Fatal("COUNT function not found in catalog") + } + + count := funcs[0] + t.Logf("Found COUNT function: %+v", count) + t.Logf(" Name: %s", count.Name) + t.Logf(" Return type: %+v", count.ReturnType) + t.Logf(" Args: %v", len(count.Args)) + + if len(count.Args) > 0 { + arg := count.Args[0] + t.Logf(" Arg 0: %+v", arg) + t.Logf(" Name: %s", arg.Name) + t.Logf(" Type: %+v", arg.Type) + t.Logf(" Mode: %v", arg.Mode) + t.Logf(" HasDefault: %v", arg.HasDefault) + } +} + +// TestCatalogIsolationBetweenQueries verifies that function registrations in one query +// don't affect other queries. This tests the catalog cloning mechanism. +func TestCatalogIsolationBetweenQueries(t *testing.T) { + // Create a catalog with a test table + cat := catalog.New("default") + // Access the default schema directly + schema := cat.Schemas[0] + schema.Tables = append(schema.Tables, &catalog.Table{ + Rel: &ast.TableName{Name: "test_table"}, + Columns: []*catalog.Column{ + {Name: "id", Type: ast.TypeName{Name: "int32"}}, + {Name: "values", Type: ast.TypeName{Name: "array"}}, + }, + }) + + // Create a parser and set the catalog + parser := NewParser() + parser.Catalog = cat + + // Query 1: arrayJoin should register with a specific type in the cloned catalog + query1 := "SELECT arrayJoin(values) AS item FROM test_table" + stmts1, err := parser.Parse(strings.NewReader(query1)) + if err != nil { + t.Fatalf("Query 1 parse failed: %v", err) + } + if len(stmts1) != 1 { + t.Fatalf("Query 1: expected 1 statement, got %d", len(stmts1)) + } + + // Query 2: Same arrayJoin call - should use fresh cloned catalog + query2 := "SELECT arrayJoin(values) AS item FROM test_table" + stmts2, err := parser.Parse(strings.NewReader(query2)) + if err != nil { + t.Fatalf("Query 2 parse failed: %v", err) + } + if len(stmts2) != 1 { + t.Fatalf("Query 2: expected 1 statement, got %d", len(stmts2)) + } + + // Verify that the original catalog was not mutated + // Count arrayJoin functions registered in the original catalog + var arrayJoinFuncs []*catalog.Function + for _, fn := range schema.Funcs { + if strings.ToLower(fn.Name) == "arrayjoin" { + arrayJoinFuncs = append(arrayJoinFuncs, fn) + } + } + + // Should be no arrayJoin functions registered in the original catalog + // since cloning happens per Parse() call + if len(arrayJoinFuncs) > 0 { + t.Fatalf("Original catalog was mutated: found %d arrayJoin functions, expected 0", len(arrayJoinFuncs)) + } + + t.Log("✓ Catalog isolation verified: functions registered during parsing don't affect original catalog") +} diff --git a/internal/engine/clickhouse/qualified_col_test.go b/internal/engine/clickhouse/qualified_col_test.go new file mode 100644 index 0000000000..cce5179a42 --- /dev/null +++ b/internal/engine/clickhouse/qualified_col_test.go @@ -0,0 +1,76 @@ +package clickhouse + +import ( + "strings" + "testing" + + "github.com/sqlc-dev/sqlc/internal/sql/ast" +) + +// TestQualifiedColumnNameExtraction tests that qualified column references +// like u.id without explicit aliases get the column name extracted as the default name +func TestQualifiedColumnNameExtraction(t *testing.T) { + parser := NewParser() + + tests := []struct { + name string + query string + expectedNames []string + }{ + { + name: "qualified columns without alias", + query: "SELECT u.id, u.name FROM users u", + expectedNames: []string{"id", "name"}, + }, + { + name: "qualified columns with mixed aliases", + query: "SELECT u.id, u.name as user_name, u.email FROM users u", + expectedNames: []string{"id", "user_name", "email"}, + }, + { + name: "join with qualified columns", + query: "SELECT u.id, u.name, p.title FROM users u LEFT JOIN posts p ON u.id = p.user_id", + expectedNames: []string{"id", "name", "title"}, + }, + { + name: "nested qualified columns", + query: "SELECT t.a, t.b, t.c FROM table1 t", + expectedNames: []string{"a", "b", "c"}, + }, + } + + for _, tt := range tests { + t.Run(tt.name, func(t *testing.T) { + stmts, err := parser.Parse(strings.NewReader(tt.query)) + if err != nil { + t.Fatalf("Parse failed: %v", err) + } + + if len(stmts) == 0 { + t.Fatal("No statements parsed") + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + if len(selectStmt.TargetList.Items) != len(tt.expectedNames) { + t.Fatalf("Expected %d targets, got %d", len(tt.expectedNames), len(selectStmt.TargetList.Items)) + } + + for i, expected := range tt.expectedNames { + resTarget, ok := selectStmt.TargetList.Items[i].(*ast.ResTarget) + if !ok { + t.Fatalf("Target %d is not ResTarget", i) + } + + if resTarget.Name == nil { + t.Errorf("Target %d has no name (expected %q)", i, expected) + } else if *resTarget.Name != expected { + t.Errorf("Target %d: expected name %q, got %q", i, expected, *resTarget.Name) + } + } + }) + } +} diff --git a/internal/engine/clickhouse/unhandled_types_test.go b/internal/engine/clickhouse/unhandled_types_test.go new file mode 100644 index 0000000000..ded021d9d0 --- /dev/null +++ b/internal/engine/clickhouse/unhandled_types_test.go @@ -0,0 +1,139 @@ +package clickhouse + +import ( + "strings" + "testing" + + "github.com/sqlc-dev/sqlc/internal/sql/ast" +) + +// TestUnhandledNodeTypes tests queries that use ClickHouse AST node types +// that we haven't implemented converters for yet. +// These tests identify which unhandled types actually matter in practice. +func TestUnhandledNodeTypes(t *testing.T) { + parser := NewParser() + + tests := []struct { + name string + query string + wantErr bool + hasTodo bool // whether we expect TODO nodes in output + checkFunc func(*ast.SelectStmt) error + }{ + { + name: "array indexing", + query: "SELECT arr[1] FROM table1", + wantErr: false, + hasTodo: true, // IndexOperation not handled yet + }, + { + name: "array literal", + query: "SELECT [1, 2, 3] as arr FROM table1", + wantErr: false, + hasTodo: false, // ArrayParamList now handled + }, + { + name: "tuple literal", + query: "SELECT (1, 2, 3) as t FROM table1", + wantErr: false, + hasTodo: false, // ParamExprList handles this + }, + { + name: "table function", + query: "SELECT * FROM numbers(10)", + wantErr: false, + hasTodo: false, // TableFunctionExpr now handled + }, + { + name: "array comparison", + query: "SELECT * FROM table1 WHERE x IN [1, 2, 3]", + wantErr: false, + hasTodo: false, // ArrayParamList now handled + }, + } + + for _, tt := range tests { + t.Run(tt.name, func(t *testing.T) { + stmts, err := parser.Parse(strings.NewReader(tt.query)) + if (err != nil) != tt.wantErr { + t.Fatalf("Parse error: %v, wantErr %v", err, tt.wantErr) + } + + if len(stmts) == 0 { + t.Fatal("No statements parsed") + } + + selectStmt, ok := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", stmts[0].Raw.Stmt) + } + + hasTodoNode := containsTODO(selectStmt) + if hasTodoNode != tt.hasTodo { + t.Errorf("Expected hasTodo=%v, but got %v", tt.hasTodo, hasTodoNode) + } + + t.Logf("Query parses: has TODO nodes=%v", hasTodoNode) + }) + } +} + +// containsTODO recursively checks if an AST node tree contains any TODO nodes +func containsTODO(node interface{}) bool { + if node == nil { + return false + } + + switch n := node.(type) { + case *ast.TODO: + if n != nil { + return true + } + case *ast.SelectStmt: + if n != nil { + if containsTODO(n.TargetList) { + return true + } + if containsTODO(n.FromClause) { + return true + } + if containsTODO(n.WhereClause) { + return true + } + return containsTODO(n.Larg) || containsTODO(n.Rarg) + } + case *ast.List: + if n != nil && n.Items != nil { + for _, item := range n.Items { + if item != nil && containsTODO(item) { + return true + } + } + } + case *ast.ResTarget: + if n != nil && containsTODO(n.Val) { + return true + } + case *ast.RangeVar: + // RangeVar doesn't have a Subquery field in this version + return false + case *ast.A_Expr: + if n != nil { + return containsTODO(n.Lexpr) || containsTODO(n.Rexpr) + } + case *ast.FuncCall: + if n != nil && containsTODO(n.Args) { + return true + } + case *ast.JoinExpr: + if n != nil { + return containsTODO(n.Larg) || containsTODO(n.Rarg) || containsTODO(n.Quals) + } + case *ast.ColumnRef: + if n != nil { + return containsTODO(n.Fields) + } + } + + return false +} diff --git a/internal/engine/clickhouse/using_test.go b/internal/engine/clickhouse/using_test.go new file mode 100644 index 0000000000..81934dde68 --- /dev/null +++ b/internal/engine/clickhouse/using_test.go @@ -0,0 +1,54 @@ +package clickhouse + +import ( + "strings" + "testing" + + "github.com/sqlc-dev/sqlc/internal/sql/ast" +) + +// TestClickHouseUsingMapStructure verifies the structure of the converted JoinExpr +func TestClickHouseUsingMapStructure(t *testing.T) { + sql := "SELECT * FROM orders LEFT JOIN shipments USING (order_id)" + parser := NewParser() + + stmts, err := parser.Parse(strings.NewReader(sql)) + if err != nil { + t.Fatalf("Parse error: %v", err) + } + + selectStmt := stmts[0].Raw.Stmt.(*ast.SelectStmt) + if selectStmt.FromClause == nil || len(selectStmt.FromClause.Items) == 0 { + t.Fatal("No FROM clause") + } + + fromItem := selectStmt.FromClause.Items[0] + topJoin, ok := fromItem.(*ast.JoinExpr) + if !ok { + t.Fatalf("Expected JoinExpr, got %T", fromItem) + } + + t.Logf("Top JoinExpr:") + t.Logf(" Larg: %T", topJoin.Larg) + t.Logf(" Rarg: %T", topJoin.Rarg) + t.Logf(" UsingClause: %v", topJoin.UsingClause) + + // Check nested join + if nestedJoin, ok := topJoin.Rarg.(*ast.JoinExpr); ok { + t.Logf("Nested JoinExpr (Rarg):") + t.Logf(" Larg: %T", nestedJoin.Larg) + if rvar, ok := nestedJoin.Larg.(*ast.RangeVar); ok { + t.Logf(" Relname: %v", rvar.Relname) + } + t.Logf(" Rarg: %T", nestedJoin.Rarg) + t.Logf(" UsingClause: %v", nestedJoin.UsingClause) + if nestedJoin.UsingClause != nil { + t.Logf(" Items: %d", len(nestedJoin.UsingClause.Items)) + for i, item := range nestedJoin.UsingClause.Items { + if str, ok := item.(*ast.String); ok { + t.Logf(" %d: %s", i, str.Str) + } + } + } + } +} From 5112babf943c5445a62798c7a5a59b80d32c58af Mon Sep 17 00:00:00 2001 From: Miguel Eduardo Gil Biraud Date: Sat, 6 Dec 2025 14:53:34 +0000 Subject: [PATCH 03/13] Register ClickHouse engine in compiler Add engine registration in compiler pipeline and configuration schema. Enables compiler to recognize and process ClickHouse engine configurations. --- internal/compiler/engine.go | 22 ++++++++++++++++++++-- internal/config/config.go | 1 + internal/config/v_one.json | 3 +++ internal/config/v_two.json | 3 +++ 4 files changed, 27 insertions(+), 2 deletions(-) diff --git a/internal/compiler/engine.go b/internal/compiler/engine.go index 75749cd6df..68da4f0f05 100644 --- a/internal/compiler/engine.go +++ b/internal/compiler/engine.go @@ -7,15 +7,19 @@ import ( "github.com/sqlc-dev/sqlc/internal/analyzer" "github.com/sqlc-dev/sqlc/internal/config" "github.com/sqlc-dev/sqlc/internal/dbmanager" + "github.com/sqlc-dev/sqlc/internal/engine/clickhouse" "github.com/sqlc-dev/sqlc/internal/engine/dolphin" "github.com/sqlc-dev/sqlc/internal/engine/postgresql" pganalyze "github.com/sqlc-dev/sqlc/internal/engine/postgresql/analyzer" "github.com/sqlc-dev/sqlc/internal/engine/sqlite" sqliteanalyze "github.com/sqlc-dev/sqlc/internal/engine/sqlite/analyzer" "github.com/sqlc-dev/sqlc/internal/opts" + "github.com/sqlc-dev/sqlc/internal/sql/ast" "github.com/sqlc-dev/sqlc/internal/sql/catalog" ) +type ResolveTypeFunc func(call *ast.FuncCall, fun *catalog.Function, resolve func(n ast.Node) (*catalog.Column, error)) *ast.TypeName + type Compiler struct { conf config.SQL combo config.CombinedSettings @@ -26,7 +30,8 @@ type Compiler struct { client dbmanager.Client selector selector - schema []string + schema []string + TypeResolver ResolveTypeFunc } func NewCompiler(conf config.SQL, combo config.CombinedSettings) (*Compiler, error) { @@ -38,6 +43,11 @@ func NewCompiler(conf config.SQL, combo config.CombinedSettings) (*Compiler, err } switch conf.Engine { + case config.EngineClickHouse: + c.parser = clickhouse.NewParser() + c.catalog = clickhouse.NewCatalog() + c.selector = newDefaultSelector() + c.TypeResolver = clickhouse.TypeResolver case config.EngineSQLite: c.parser = sqlite.NewParser() c.catalog = sqlite.NewCatalog() @@ -79,7 +89,15 @@ func (c *Compiler) Catalog() *catalog.Catalog { } func (c *Compiler) ParseCatalog(schema []string) error { - return c.parseCatalog(schema) + err := c.parseCatalog(schema) + if err == nil && c.conf.Engine == config.EngineClickHouse { + // Set the catalog on the ClickHouse parser so it can register + // context-dependent functions during query parsing + if chParser, ok := c.parser.(*clickhouse.Parser); ok { + chParser.Catalog = c.catalog + } + } + return err } func (c *Compiler) ParseQueries(queries []string, o opts.Parser) error { diff --git a/internal/config/config.go b/internal/config/config.go index 0ff805fccd..5880803567 100644 --- a/internal/config/config.go +++ b/internal/config/config.go @@ -51,6 +51,7 @@ func (p *Paths) UnmarshalYAML(unmarshal func(interface{}) error) error { } const ( + EngineClickHouse Engine = "clickhouse" EngineMySQL Engine = "mysql" EnginePostgreSQL Engine = "postgresql" EngineSQLite Engine = "sqlite" diff --git a/internal/config/v_one.json b/internal/config/v_one.json index a0667a7c9c..09e3c2204a 100644 --- a/internal/config/v_one.json +++ b/internal/config/v_one.json @@ -33,6 +33,7 @@ "properties": { "engine": { "enum": [ + "clickhouse", "postgresql", "mysql", "sqlite" @@ -192,6 +193,7 @@ }, "engine": { "enum": [ + "clickhouse", "postgresql", "mysql", "sqlite" @@ -300,6 +302,7 @@ }, "engine": { "enum": [ + "clickhouse", "postgresql", "mysql", "sqlite" diff --git a/internal/config/v_two.json b/internal/config/v_two.json index acf914997d..96770bdbb9 100644 --- a/internal/config/v_two.json +++ b/internal/config/v_two.json @@ -36,6 +36,7 @@ }, "engine": { "enum": [ + "clickhouse", "postgresql", "mysql", "sqlite" @@ -201,6 +202,7 @@ }, "engine": { "enum": [ + "clickhouse", "postgresql", "mysql", "sqlite" @@ -358,6 +360,7 @@ }, "engine": { "enum": [ + "clickhouse", "postgresql", "mysql", "sqlite" From e817d54af21a9203d805440f8aa7c9845756dcf8 Mon Sep 17 00:00:00 2001 From: Miguel Eduardo Gil Biraud Date: Sat, 6 Dec 2025 14:53:41 +0000 Subject: [PATCH 04/13] Add ClickHouse type mapping for Go code generation Map ClickHouse types to Go types, update driver handling, and add import management for ClickHouse types. --- internal/codegen/golang/clickhouse_type.go | 342 +++++++++++++++++++++ internal/codegen/golang/driver.go | 2 + internal/codegen/golang/go_type.go | 2 + internal/codegen/golang/imports.go | 4 +- internal/codegen/golang/opts/enum.go | 22 +- 5 files changed, 365 insertions(+), 7 deletions(-) create mode 100644 internal/codegen/golang/clickhouse_type.go diff --git a/internal/codegen/golang/clickhouse_type.go b/internal/codegen/golang/clickhouse_type.go new file mode 100644 index 0000000000..85bdd18cbf --- /dev/null +++ b/internal/codegen/golang/clickhouse_type.go @@ -0,0 +1,342 @@ +package golang + +import ( + "strings" + + "github.com/sqlc-dev/sqlc/internal/codegen/golang/opts" + "github.com/sqlc-dev/sqlc/internal/codegen/sdk" + "github.com/sqlc-dev/sqlc/internal/plugin" +) + +func clickhouseType(req *plugin.GenerateRequest, options *opts.Options, col *plugin.Column) string { + columnType := sdk.DataType(col.Type) + notNull := col.NotNull || col.IsArray + + // Check if we're using the native ClickHouse driver + driver := parseDriver(options.SqlPackage) + useNativeDriver := driver.IsClickHouse() + + switch columnType { + + // String types + case "string", "varchar", "text", "char", "fixedstring": + if useNativeDriver { + // Native driver uses *string for nullable + if notNull { + return "string" + } + if options.EmitPointersForNullTypes { + return "*string" + } + return "sql.NullString" + } + if notNull { + return "string" + } + return "sql.NullString" + + // Integer types - UInt variants (unsigned) + case "uint8": + if useNativeDriver { + if notNull { + return "uint8" + } + if options.EmitPointersForNullTypes { + return "*uint8" + } + return "sql.NullInt16" + } + if notNull { + return "uint8" + } + return "sql.NullInt16" // database/sql doesn't have NullUint8 + + case "uint16": + if useNativeDriver { + if notNull { + return "uint16" + } + if options.EmitPointersForNullTypes { + return "*uint16" + } + return "sql.NullInt32" + } + if notNull { + return "uint16" + } + return "sql.NullInt32" // database/sql doesn't have NullUint16 + + case "uint32": + if useNativeDriver { + if notNull { + return "uint32" + } + if options.EmitPointersForNullTypes { + return "*uint32" + } + return "sql.NullInt64" + } + if notNull { + return "uint32" + } + return "sql.NullInt64" // database/sql doesn't have NullUint32 + + case "uint64": + if useNativeDriver { + if notNull { + return "uint64" + } + if options.EmitPointersForNullTypes { + return "*uint64" + } + return "sql.NullInt64" + } + if notNull { + return "uint64" + } + return "string" // uint64 can overflow, use string for large values + + // Integer types - Int variants (signed) + case "int8": + if useNativeDriver { + if notNull { + return "int8" + } + if options.EmitPointersForNullTypes { + return "*int8" + } + return "sql.NullInt16" + } + if notNull { + return "int8" + } + return "sql.NullInt16" + + case "int16": + if useNativeDriver { + if notNull { + return "int16" + } + if options.EmitPointersForNullTypes { + return "*int16" + } + return "sql.NullInt16" + } + if notNull { + return "int16" + } + return "sql.NullInt16" + + case "int32": + if useNativeDriver { + if notNull { + return "int32" + } + if options.EmitPointersForNullTypes { + return "*int32" + } + return "sql.NullInt32" + } + if notNull { + return "int32" + } + return "sql.NullInt32" + + case "int64": + if useNativeDriver { + if notNull { + return "int64" + } + if options.EmitPointersForNullTypes { + return "*int64" + } + return "sql.NullInt64" + } + if notNull { + return "int64" + } + return "sql.NullInt64" + + // Generic "integer" type (used for LIMIT/OFFSET parameters and other integer values) + case "integer": + if useNativeDriver { + if notNull { + return "int64" + } + if options.EmitPointersForNullTypes { + return "*int64" + } + return "sql.NullInt64" + } + if notNull { + return "int64" + } + return "sql.NullInt64" + + // Large integer types + case "int128", "int256", "uint128", "uint256": + // These are too large for standard Go integers, use string + if notNull { + return "string" + } + return "sql.NullString" + + // Floating point types + case "float32", "real": + if useNativeDriver { + if notNull { + return "float32" + } + if options.EmitPointersForNullTypes { + return "*float32" + } + return "sql.NullFloat64" + } + if notNull { + return "float32" + } + return "sql.NullFloat64" // database/sql doesn't have NullFloat32 + + case "float64", "double precision", "double": + if useNativeDriver { + if notNull { + return "float64" + } + if options.EmitPointersForNullTypes { + return "*float64" + } + return "sql.NullFloat64" + } + if notNull { + return "float64" + } + return "sql.NullFloat64" + + // Decimal types + case "decimal": + if notNull { + return "string" + } + return "sql.NullString" + + // Date and time types + case "date", "date32": + if useNativeDriver { + if notNull { + return "time.Time" + } + if options.EmitPointersForNullTypes { + return "*time.Time" + } + return "sql.NullTime" + } + if notNull { + return "time.Time" + } + return "sql.NullTime" + + case "datetime", "datetime64", "timestamp": + if useNativeDriver { + if notNull { + return "time.Time" + } + if options.EmitPointersForNullTypes { + return "*time.Time" + } + return "sql.NullTime" + } + if notNull { + return "time.Time" + } + return "sql.NullTime" + + // Boolean + case "boolean", "bool": + if useNativeDriver { + if notNull { + return "bool" + } + if options.EmitPointersForNullTypes { + return "*bool" + } + return "sql.NullBool" + } + if notNull { + return "bool" + } + return "sql.NullBool" + + // UUID + case "uuid": + if notNull { + return "string" + } + return "sql.NullString" + + // IP address types + case "ipv4", "ipv6": + if notNull { + return "netip.Addr" + } + if options.EmitPointersForNullTypes { + return "*netip.Addr" + } + // Use a custom SQL null type for nullable IP addresses + // For now, use pointer since netip.Addr doesn't have a nullable variant + return "*netip.Addr" + + // JSON types + case "json": + return "json.RawMessage" + + // Arrays - ClickHouse array types + case "array": + if useNativeDriver { + // Native driver has better array support + // For now, still use generic until we have element type info + return "[]interface{}" + } + return "[]interface{}" // Generic array type + + // Any/Unknown type + case "any": + return "interface{}" + + default: + // Check if this is a map type (starts with "map[") + // Map types come from the engine layer with full type information (e.g., "map[string]int64") + if strings.HasPrefix(columnType, "map[") { + if notNull { + return columnType + } + // For nullable map types, wrap in pointer + if options.EmitPointersForNullTypes { + return "*" + columnType + } + // Otherwise treat as interface{} for nullable + return "interface{}" + } + + // Check for custom types (enums, etc.) + for _, schema := range req.Catalog.Schemas { + for _, enum := range schema.Enums { + if enum.Name == columnType { + if notNull { + if schema.Name == req.Catalog.DefaultSchema { + return StructName(enum.Name, options) + } + return StructName(schema.Name+"_"+enum.Name, options) + } else { + if schema.Name == req.Catalog.DefaultSchema { + return "Null" + StructName(enum.Name, options) + } + return "Null" + StructName(schema.Name+"_"+enum.Name, options) + } + } + } + } + + // Default fallback for unknown types + return "interface{}" + } +} diff --git a/internal/codegen/golang/driver.go b/internal/codegen/golang/driver.go index 5e3a533dcc..2728d943d2 100644 --- a/internal/codegen/golang/driver.go +++ b/internal/codegen/golang/driver.go @@ -8,6 +8,8 @@ func parseDriver(sqlPackage string) opts.SQLDriver { return opts.SQLDriverPGXV4 case opts.SQLPackagePGXV5: return opts.SQLDriverPGXV5 + case opts.SQLPackageClickHouseV2: + return opts.SQLDriverClickHouseV2 default: return opts.SQLDriverLibPQ } diff --git a/internal/codegen/golang/go_type.go b/internal/codegen/golang/go_type.go index c4aac84dd6..f258ef78ee 100644 --- a/internal/codegen/golang/go_type.go +++ b/internal/codegen/golang/go_type.go @@ -89,6 +89,8 @@ func goInnerType(req *plugin.GenerateRequest, options *opts.Options, col *plugin return postgresType(req, options, col) case "sqlite": return sqliteType(req, options, col) + case "clickhouse": + return clickhouseType(req, options, col) default: return "interface{}" } diff --git a/internal/codegen/golang/imports.go b/internal/codegen/golang/imports.go index ccca4f603c..3ebf1070d3 100644 --- a/internal/codegen/golang/imports.go +++ b/internal/codegen/golang/imports.go @@ -132,6 +132,8 @@ func (i *importer) dbImports() fileImports { case opts.SQLDriverPGXV5: pkg = append(pkg, ImportSpec{Path: "github.com/jackc/pgx/v5/pgconn"}) pkg = append(pkg, ImportSpec{Path: "github.com/jackc/pgx/v5"}) + case opts.SQLDriverClickHouseV2: + pkg = append(pkg, ImportSpec{Path: "github.com/ClickHouse/clickhouse-go/v2/lib/driver"}) default: std = append(std, ImportSpec{Path: "database/sql"}) if i.Options.EmitPreparedQueries { @@ -395,7 +397,7 @@ func (i *importer) queryImports(filename string) fileImports { } sqlpkg := parseDriver(i.Options.SqlPackage) - if sqlcSliceScan() && !sqlpkg.IsPGX() { + if sqlcSliceScan() && !sqlpkg.IsPGX() && !sqlpkg.IsClickHouse() { std["strings"] = struct{}{} } if sliceScan() && !sqlpkg.IsPGX() { diff --git a/internal/codegen/golang/opts/enum.go b/internal/codegen/golang/opts/enum.go index 40457d040a..c4c78dbef6 100644 --- a/internal/codegen/golang/opts/enum.go +++ b/internal/codegen/golang/opts/enum.go @@ -5,15 +5,17 @@ import "fmt" type SQLDriver string const ( - SQLPackagePGXV4 string = "pgx/v4" - SQLPackagePGXV5 string = "pgx/v5" - SQLPackageStandard string = "database/sql" + SQLPackagePGXV4 string = "pgx/v4" + SQLPackagePGXV5 string = "pgx/v5" + SQLPackageClickHouseV2 string = "clickhouse/v2" + SQLPackageStandard string = "database/sql" ) var validPackages = map[string]struct{}{ - string(SQLPackagePGXV4): {}, - string(SQLPackagePGXV5): {}, - string(SQLPackageStandard): {}, + string(SQLPackagePGXV4): {}, + string(SQLPackagePGXV5): {}, + string(SQLPackageClickHouseV2): {}, + string(SQLPackageStandard): {}, } func validatePackage(sqlPackage string) error { @@ -28,6 +30,7 @@ const ( SQLDriverPGXV5 = "github.com/jackc/pgx/v5" SQLDriverLibPQ = "github.com/lib/pq" SQLDriverGoSQLDriverMySQL = "github.com/go-sql-driver/mysql" + SQLDriverClickHouseV2 = "github.com/ClickHouse/clickhouse-go/v2" ) var validDrivers = map[string]struct{}{ @@ -35,6 +38,7 @@ var validDrivers = map[string]struct{}{ string(SQLDriverPGXV5): {}, string(SQLDriverLibPQ): {}, string(SQLDriverGoSQLDriverMySQL): {}, + string(SQLDriverClickHouseV2): {}, } func validateDriver(sqlDriver string) error { @@ -52,12 +56,18 @@ func (d SQLDriver) IsGoSQLDriverMySQL() bool { return d == SQLDriverGoSQLDriverMySQL } +func (d SQLDriver) IsClickHouse() bool { + return d == SQLDriverClickHouseV2 +} + func (d SQLDriver) Package() string { switch d { case SQLDriverPGXV4: return SQLPackagePGXV4 case SQLDriverPGXV5: return SQLPackagePGXV5 + case SQLDriverClickHouseV2: + return SQLPackageClickHouseV2 default: return SQLPackageStandard } From d426a1689c310662c8d5b635c28460979e3470e2 Mon Sep 17 00:00:00 2001 From: Miguel Eduardo Gil Biraud Date: Sat, 6 Dec 2025 14:53:47 +0000 Subject: [PATCH 05/13] Add ClickHouse code generation templates Templates for generating Go database code: - Database interface template - Interface declarations - Query function implementations - Import resolution tests --- internal/codegen/golang/imports_test.go | 28 +++ .../golang/templates/clickhouse/dbCode.tmpl | 34 ++++ .../templates/clickhouse/interfaceCode.tmpl | 16 ++ .../templates/clickhouse/queryCode.tmpl | 165 ++++++++++++++++++ .../codegen/golang/templates/template.tmpl | 6 + 5 files changed, 249 insertions(+) create mode 100644 internal/codegen/golang/imports_test.go create mode 100644 internal/codegen/golang/templates/clickhouse/dbCode.tmpl create mode 100644 internal/codegen/golang/templates/clickhouse/interfaceCode.tmpl create mode 100644 internal/codegen/golang/templates/clickhouse/queryCode.tmpl diff --git a/internal/codegen/golang/imports_test.go b/internal/codegen/golang/imports_test.go new file mode 100644 index 0000000000..4e2782e3ed --- /dev/null +++ b/internal/codegen/golang/imports_test.go @@ -0,0 +1,28 @@ +package golang + +import ( + "testing" + + "github.com/sqlc-dev/sqlc/internal/codegen/golang/opts" +) + +func TestClickHouseDriver_NotPGX(t *testing.T) { + driver := opts.SQLDriver(opts.SQLDriverClickHouseV2) + if driver.IsPGX() { + t.Error("ClickHouse driver should not identify as PGX") + } +} + +func TestClickHouseDriver_IsClickHouse(t *testing.T) { + driver := opts.SQLDriver(opts.SQLDriverClickHouseV2) + if !driver.IsClickHouse() { + t.Error("ClickHouse driver should identify as ClickHouse") + } +} + +func TestStandardDriver_NotClickHouse(t *testing.T) { + driver := opts.SQLDriver(opts.SQLDriverLibPQ) + if driver.IsClickHouse() { + t.Error("Standard driver should not identify as ClickHouse") + } +} diff --git a/internal/codegen/golang/templates/clickhouse/dbCode.tmpl b/internal/codegen/golang/templates/clickhouse/dbCode.tmpl new file mode 100644 index 0000000000..71b81094b6 --- /dev/null +++ b/internal/codegen/golang/templates/clickhouse/dbCode.tmpl @@ -0,0 +1,34 @@ +{{define "dbCodeTemplateClickHouse"}} + +type DBTX interface { + Exec(ctx context.Context, query string, args ...any) error + Query(ctx context.Context, query string, args ...any) (driver.Rows, error) + QueryRow(ctx context.Context, query string, args ...any) driver.Row +{{- if .UsesBatch }} + PrepareBatch(ctx context.Context, query string) (driver.Batch, error) +{{- end }} +} + +{{ if .EmitMethodsWithDBArgument}} +func New() *Queries { + return &Queries{} +{{- else -}} +func New(db DBTX) *Queries { + return &Queries{db: db} +{{- end}} +} + +type Queries struct { + {{if not .EmitMethodsWithDBArgument}} + db DBTX + {{end}} +} + +{{if not .EmitMethodsWithDBArgument}} +func (q *Queries) WithTx(tx driver.Conn) *Queries { + return &Queries{ + db: tx, + } +} +{{end}} +{{end}} diff --git a/internal/codegen/golang/templates/clickhouse/interfaceCode.tmpl b/internal/codegen/golang/templates/clickhouse/interfaceCode.tmpl new file mode 100644 index 0000000000..4304e9eacf --- /dev/null +++ b/internal/codegen/golang/templates/clickhouse/interfaceCode.tmpl @@ -0,0 +1,16 @@ +{{define "interfaceCodeClickHouse"}} +type Querier interface { {{- range .GoQueries}} + {{- if ne (hasPrefix .Cmd ":batch") true}} + {{range .Comments}}//{{.}} + {{end -}} + {{- if $.EmitMethodsWithDBArgument -}} + {{.MethodName}}(ctx context.Context, db DBTX, {{.Arg.Pair}}) ({{.Ret.EmitResultType}}, error) + {{- else -}} + {{.MethodName}}(ctx context.Context, {{.Arg.Pair}}) ({{.Ret.EmitResultType}}, error) + {{- end -}} + {{- end}} +{{- end}} +} + +var _ Querier = (*Queries)(nil) +{{end}} diff --git a/internal/codegen/golang/templates/clickhouse/queryCode.tmpl b/internal/codegen/golang/templates/clickhouse/queryCode.tmpl new file mode 100644 index 0000000000..91d255647f --- /dev/null +++ b/internal/codegen/golang/templates/clickhouse/queryCode.tmpl @@ -0,0 +1,165 @@ +{{define "queryCodeClickHouse"}} +{{range .GoQueries}} +{{if $.OutputQuery .SourceName}} +{{if and (ne .Cmd ":copyfrom") (ne (hasPrefix .Cmd ":batch") true)}} +const {{.ConstantName}} = {{$.Q}}-- name: {{.MethodName}} {{.Cmd}} +{{escape .SQL}} +{{$.Q}} +{{end}} + +{{if ne (hasPrefix .Cmd ":batch") true}} +{{if .Arg.EmitStruct}} +type {{.Arg.Type}} struct { {{- range .Arg.Struct.Fields}} + {{.Name}} {{.Type}} {{if .Tag}}{{$.Q}}{{.Tag}}{{$.Q}}{{end}} + {{- end}} +} +{{end}} + +{{if .Ret.EmitStruct}} +type {{.Ret.Type}} struct { {{- range .Ret.Struct.Fields}} + {{.Name}} {{.Type}} {{if .Tag}}{{$.Q}}{{.Tag}}{{$.Q}}{{end}} + {{- end}} +} +{{end}} +{{end}} + +{{if eq .Cmd ":one"}} +{{range .Comments}}//{{.}} +{{end -}} +{{- if $.EmitMethodsWithDBArgument -}} +func (q *Queries) {{.MethodName}}(ctx context.Context, db DBTX, {{.Arg.Pair}}) ({{.Ret.DefineType}}, error) { + row := db.QueryRow(ctx, {{.ConstantName}}, {{.Arg.Params}}) +{{- else -}} +func (q *Queries) {{.MethodName}}(ctx context.Context, {{.Arg.Pair}}) ({{.Ret.DefineType}}, error) { + row := q.db.QueryRow(ctx, {{.ConstantName}}, {{.Arg.Params}}) +{{- end}} + {{- if or (ne .Arg.Pair .Ret.Pair) (ne .Arg.DefineType .Ret.DefineType) }} + var {{.Ret.Name}} {{.Ret.Type}} + {{- end}} + err := row.Scan({{.Ret.Scan}}) + {{- if $.WrapErrors}} + if err != nil { + err = fmt.Errorf("query {{.MethodName}}: %w", err) + } + {{- end}} + return {{.Ret.ReturnName}}, err +} +{{end}} + +{{if eq .Cmd ":many"}} +{{range .Comments}}//{{.}} +{{end -}} +{{- if $.EmitMethodsWithDBArgument -}} +func (q *Queries) {{.MethodName}}(ctx context.Context, db DBTX, {{.Arg.Pair}}) ([]{{.Ret.DefineType}}, error) { + rows, err := db.Query(ctx, {{.ConstantName}}, {{.Arg.Params}}) +{{- else -}} +func (q *Queries) {{.MethodName}}(ctx context.Context, {{.Arg.Pair}}) ([]{{.Ret.DefineType}}, error) { + rows, err := q.db.Query(ctx, {{.ConstantName}}, {{.Arg.Params}}) +{{- end}} + if err != nil { + return nil, {{if $.WrapErrors}}fmt.Errorf("query {{.MethodName}}: %w", err){{else}}err{{end}} + } + defer rows.Close() + {{- if $.EmitEmptySlices}} + items := []{{.Ret.DefineType}}{} + {{else}} + var items []{{.Ret.DefineType}} + {{end -}} + for rows.Next() { + var {{.Ret.Name}} {{.Ret.Type}} + if err := rows.Scan({{.Ret.Scan}}); err != nil { + return nil, {{if $.WrapErrors}}fmt.Errorf("query {{.MethodName}}: %w", err){{else}}err{{end}} + } + items = append(items, {{.Ret.ReturnName}}) + } + if err := rows.Err(); err != nil { + return nil, {{if $.WrapErrors}}fmt.Errorf("query {{.MethodName}}: %w", err){{else}}err{{end}} + } + return items, nil +} +{{end}} + +{{if eq .Cmd ":exec"}} +{{range .Comments}}//{{.}} +{{end -}} +{{- if $.EmitMethodsWithDBArgument -}} +func (q *Queries) {{.MethodName}}(ctx context.Context, db DBTX, {{.Arg.Pair}}) error { + err := db.Exec(ctx, {{.ConstantName}}, {{.Arg.Params}}) +{{- else -}} +func (q *Queries) {{.MethodName}}(ctx context.Context, {{.Arg.Pair}}) error { + err := q.db.Exec(ctx, {{.ConstantName}}, {{.Arg.Params}}) +{{- end}} + {{- if $.WrapErrors}} + if err != nil { + return fmt.Errorf("exec {{.MethodName}}: %w", err) + } + {{- end}} + return err +} +{{end}} + +{{if eq .Cmd ":execrows"}} +{{range .Comments}}//{{.}} +{{end -}} +{{- if $.EmitMethodsWithDBArgument -}} +func (q *Queries) {{.MethodName}}(ctx context.Context, db DBTX, {{.Arg.Pair}}) (int64, error) { + // ClickHouse doesn't support RowsAffected, returning error + return 0, fmt.Errorf(":execrows not supported by ClickHouse driver") +} +{{- else -}} +func (q *Queries) {{.MethodName}}(ctx context.Context, {{.Arg.Pair}}) (int64, error) { + // ClickHouse doesn't support RowsAffected, returning error + return 0, fmt.Errorf(":execrows not supported by ClickHouse driver") +} +{{- end}} +{{end}} + +{{if eq .Cmd ":execlastid"}} +{{range .Comments}}//{{.}} +{{end -}} +{{- if $.EmitMethodsWithDBArgument -}} +func (q *Queries) {{.MethodName}}(ctx context.Context, db DBTX, {{.Arg.Pair}}) (int64, error) { + // ClickHouse doesn't support LastInsertId, returning error + return 0, fmt.Errorf(":execlastid not supported by ClickHouse driver") +} +{{- else -}} +func (q *Queries) {{.MethodName}}(ctx context.Context, {{.Arg.Pair}}) (int64, error) { + // ClickHouse doesn't support LastInsertId, returning error + return 0, fmt.Errorf(":execlastid not supported by ClickHouse driver") +} +{{- end}} +{{end}} + +{{if eq .Cmd ":execresult"}} +{{range .Comments}}//{{.}} +{{end -}} +{{- if $.EmitMethodsWithDBArgument -}} +func (q *Queries) {{.MethodName}}(ctx context.Context, db DBTX, {{.Arg.Pair}}) error { + {{- if $.WrapErrors}} + err := db.Exec(ctx, {{.ConstantName}}, {{.Arg.Params}}) + if err != nil { + return fmt.Errorf("exec {{.MethodName}}: %w", err) + } + return nil + {{- else}} + return db.Exec(ctx, {{.ConstantName}}, {{.Arg.Params}}) + {{- end}} +} +{{- else -}} +func (q *Queries) {{.MethodName}}(ctx context.Context, {{.Arg.Pair}}) error { + {{- if $.WrapErrors}} + err := q.db.Exec(ctx, {{.ConstantName}}, {{.Arg.Params}}) + if err != nil { + return fmt.Errorf("exec {{.MethodName}}: %w", err) + } + return nil + {{- else}} + return q.db.Exec(ctx, {{.ConstantName}}, {{.Arg.Params}}) + {{- end}} +} +{{- end}} +{{end}} + +{{end}} +{{end}} +{{end}} diff --git a/internal/codegen/golang/templates/template.tmpl b/internal/codegen/golang/templates/template.tmpl index afd50c01ac..a4c1291e2f 100644 --- a/internal/codegen/golang/templates/template.tmpl +++ b/internal/codegen/golang/templates/template.tmpl @@ -25,6 +25,8 @@ import ( {{if .SQLDriver.IsPGX }} {{- template "dbCodeTemplatePgx" .}} +{{else if .SQLDriver.IsClickHouse }} + {{- template "dbCodeTemplateClickHouse" .}} {{else}} {{- template "dbCodeTemplateStd" .}} {{end}} @@ -57,6 +59,8 @@ import ( {{define "interfaceCode"}} {{if .SQLDriver.IsPGX }} {{- template "interfaceCodePgx" .}} + {{else if .SQLDriver.IsClickHouse }} + {{- template "interfaceCodeClickHouse" .}} {{else}} {{- template "interfaceCodeStd" .}} {{end}} @@ -188,6 +192,8 @@ import ( {{define "queryCode"}} {{if .SQLDriver.IsPGX }} {{- template "queryCodePgx" .}} +{{else if .SQLDriver.IsClickHouse }} + {{- template "queryCodeClickHouse" .}} {{else}} {{- template "queryCodeStd" .}} {{end}} From 14e9917e306f423d196ab04b1f8c7e1ef0c7c3ee Mon Sep 17 00:00:00 2001 From: Miguel Eduardo Gil Biraud Date: Sat, 6 Dec 2025 14:53:59 +0000 Subject: [PATCH 06/13] Add JOIN USING support and refactor output column handling Implement JOIN...USING clause support for ClickHouse and PostgreSQL. Refactor output_columns.go for improved type resolution. Add comprehensive tests for output columns and type resolution. Update quote character handling and catalog interface. --- internal/compiler/clickhouse_join_test.go | 196 +++++++ internal/compiler/expand.go | 20 +- internal/compiler/output_columns.go | 608 ++++++++++++---------- internal/compiler/output_columns_test.go | 122 +++++ internal/compiler/type_resolution_test.go | 538 +++++++++++++++++++ internal/compiler/using.go | 73 +++ internal/compiler/using_test.go | 66 +++ internal/sql/catalog/catalog.go | 149 ++++++ 8 files changed, 1503 insertions(+), 269 deletions(-) create mode 100644 internal/compiler/clickhouse_join_test.go create mode 100644 internal/compiler/output_columns_test.go create mode 100644 internal/compiler/type_resolution_test.go create mode 100644 internal/compiler/using.go create mode 100644 internal/compiler/using_test.go diff --git a/internal/compiler/clickhouse_join_test.go b/internal/compiler/clickhouse_join_test.go new file mode 100644 index 0000000000..6fa6a8767e --- /dev/null +++ b/internal/compiler/clickhouse_join_test.go @@ -0,0 +1,196 @@ +package compiler + +import ( + "strings" + "testing" + + "github.com/sqlc-dev/sqlc/internal/config" + "github.com/sqlc-dev/sqlc/internal/engine/clickhouse" + "github.com/sqlc-dev/sqlc/internal/sql/ast" +) + +// TestClickHouseJoinColumnResolution tests that column names are properly resolved +// in JOIN queries now that JoinExpr is correctly converted +func TestClickHouseJoinColumnResolution(t *testing.T) { + parser := clickhouse.NewParser() + cat := clickhouse.NewCatalog() + + // Create database and tables + schemaSQL := `CREATE DATABASE IF NOT EXISTS test_db; +CREATE TABLE test_db.users ( + id UInt32, + name String, + email String +); +CREATE TABLE test_db.posts ( + id UInt32, + user_id UInt32, + title String, + content String +)` + + stmts, err := parser.Parse(strings.NewReader(schemaSQL)) + if err != nil { + t.Fatalf("Parse schema failed: %v", err) + } + + for _, stmt := range stmts { + if err := cat.Update(stmt, nil); err != nil { + t.Fatalf("Update catalog failed: %v", err) + } + } + + // Create compiler + conf := config.SQL{ + Engine: config.EngineClickHouse, + } + combo := config.CombinedSettings{ + Global: config.Config{}, + } + + c, err := NewCompiler(conf, combo) + if err != nil { + t.Fatalf("Failed to create compiler: %v", err) + } + + // Replace catalog + c.catalog = cat + + // Parse a JOIN query + querySQL := "SELECT u.id, u.name, p.id as post_id, p.title FROM test_db.users u LEFT JOIN test_db.posts p ON u.id = p.user_id WHERE u.id = 1" + queryStmts, err := parser.Parse(strings.NewReader(querySQL)) + if err != nil { + t.Fatalf("Parse query failed: %v", err) + } + + if len(queryStmts) == 0 { + t.Fatal("No queries parsed") + } + + selectStmt := queryStmts[0].Raw.Stmt + if selectStmt == nil { + t.Fatal("Select statement is nil") + } + + selectAst, ok := selectStmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", selectStmt) + } + + // Build query catalog and get output columns + qc, err := c.buildQueryCatalog(c.catalog, selectAst, nil) + if err != nil { + t.Fatalf("Failed to build query catalog: %v", err) + } + + cols, err := c.outputColumns(qc, selectAst) + if err != nil { + t.Fatalf("Failed to get output columns: %v", err) + } + + if len(cols) != 4 { + t.Errorf("Expected 4 columns, got %d", len(cols)) + } + + expectedNames := []string{"id", "name", "post_id", "title"} + for i, expected := range expectedNames { + if i < len(cols) { + if cols[i].Name != expected { + t.Errorf("Column %d: expected name %q, got %q", i, expected, cols[i].Name) + } + } + } +} + +// TestClickHouseLeftJoinNullability tests that LEFT JOIN correctly marks right-side columns as nullable +// In ClickHouse, columns are non-nullable by default unless wrapped in Nullable(T) +func TestClickHouseLeftJoinNullability(t *testing.T) { + parser := clickhouse.NewParser() + cat := clickhouse.NewCatalog() + + schemaSQL := `CREATE TABLE orders ( + order_id UInt32, + customer_name String, + amount Float64, + created_at DateTime + ); + CREATE TABLE shipments ( + shipment_id UInt32, + order_id UInt32, + address String, + shipped_at DateTime + )` + + stmts, err := parser.Parse(strings.NewReader(schemaSQL)) + if err != nil { + t.Fatalf("Parse schema failed: %v", err) + } + + for _, stmt := range stmts { + if err := cat.Update(stmt, nil); err != nil { + t.Fatalf("Update catalog failed: %v", err) + } + } + + conf := config.SQL{ + Engine: config.EngineClickHouse, + } + combo := config.CombinedSettings{ + Global: config.Config{}, + } + + c, err := NewCompiler(conf, combo) + if err != nil { + t.Fatalf("Failed to create compiler: %v", err) + } + c.catalog = cat + + querySQL := "SELECT o.order_id, o.customer_name, o.amount, o.created_at, s.shipment_id, s.address, s.shipped_at FROM orders o LEFT JOIN shipments s ON o.order_id = s.order_id ORDER BY o.created_at DESC" + queryStmts, err := parser.Parse(strings.NewReader(querySQL)) + if err != nil { + t.Fatalf("Parse query failed: %v", err) + } + + selectAst := queryStmts[0].Raw.Stmt.(*ast.SelectStmt) + qc, err := c.buildQueryCatalog(c.catalog, selectAst, nil) + if err != nil { + t.Fatalf("Failed to build query catalog: %v", err) + } + + cols, err := c.outputColumns(qc, selectAst) + if err != nil { + t.Fatalf("Failed to get output columns: %v", err) + } + + if len(cols) != 7 { + t.Errorf("Expected 7 columns, got %d", len(cols)) + } + + // Left table columns should be non-nullable + leftTableNonNull := map[string]bool{ + "order_id": true, + "customer_name": true, + "amount": true, + "created_at": true, + } + + // Right table columns should be nullable (because of LEFT JOIN) + rightTableNullable := map[string]bool{ + "shipment_id": true, + "address": true, + "shipped_at": true, + } + + for _, col := range cols { + if expected, ok := leftTableNonNull[col.Name]; ok { + if col.NotNull != expected { + t.Errorf("Column %q: expected NotNull=%v, got %v", col.Name, expected, col.NotNull) + } + } + if expected, ok := rightTableNullable[col.Name]; ok { + if col.NotNull == expected { + t.Errorf("Column %q: expected NotNull=%v, got %v", col.Name, !expected, col.NotNull) + } + } + } +} diff --git a/internal/compiler/expand.go b/internal/compiler/expand.go index c60b7618b2..2047edc88d 100644 --- a/internal/compiler/expand.go +++ b/internal/compiler/expand.go @@ -71,6 +71,8 @@ func (c *Compiler) quoteIdent(ident string) string { func (c *Compiler) quote(x string) string { switch c.conf.Engine { + case config.EngineClickHouse: + return "`" + x + "`" case config.EngineMySQL: return "`" + x + "`" default: @@ -84,6 +86,9 @@ func (c *Compiler) expandStmt(qc *QueryCatalog, raw *ast.RawStmt, node ast.Node) return nil, err } + // Track USING columns to avoid duplicating them in SELECT * expansion + usingMap := getJoinUsingMap(node) + var targets *ast.List switch n := node.(type) { case *ast.DeleteStmt: @@ -126,8 +131,13 @@ func (c *Compiler) expandStmt(qc *QueryCatalog, raw *ast.RawStmt, node ast.Node) counts := map[string]int{} if scope == "" { for _, t := range tables { - for _, c := range t.Columns { - counts[c.Name] += 1 + for _, col := range t.Columns { + // Don't count columns that are in USING clause for this table + // since they won't be included in the expansion + if usingInfo, ok := usingMap[t.Rel.Name]; ok && usingInfo.HasColumn(col.Name) { + continue + } + counts[col.Name] += 1 } } } @@ -138,6 +148,12 @@ func (c *Compiler) expandStmt(qc *QueryCatalog, raw *ast.RawStmt, node ast.Node) tableName := c.quoteIdent(t.Rel.Name) scopeName := c.quoteIdent(scope) for _, column := range t.Columns { + // Skip columns that are in USING clause for this table + // to avoid duplication (USING naturally returns only one column) + if usingInfo, ok := usingMap[t.Rel.Name]; ok && usingInfo.HasColumn(column.Name) { + continue + } + cname := column.Name if res.Name != nil { cname = *res.Name diff --git a/internal/compiler/output_columns.go b/internal/compiler/output_columns.go index dbd486359a..56499b387a 100644 --- a/internal/compiler/output_columns.go +++ b/internal/compiler/output_columns.go @@ -3,7 +3,9 @@ package compiler import ( "errors" "fmt" + "log" + "github.com/sqlc-dev/sqlc/internal/debug" "github.com/sqlc-dev/sqlc/internal/sql/ast" "github.com/sqlc-dev/sqlc/internal/sql/astutils" "github.com/sqlc-dev/sqlc/internal/sql/catalog" @@ -125,268 +127,11 @@ func (c *Compiler) outputColumns(qc *QueryCatalog, node ast.Node) ([]*Column, er if !ok { continue } - switch n := res.Val.(type) { - - case *ast.A_Const: - name := "" - if res.Name != nil { - name = *res.Name - } - switch n.Val.(type) { - case *ast.String: - cols = append(cols, &Column{Name: name, DataType: "text", NotNull: true}) - case *ast.Integer: - cols = append(cols, &Column{Name: name, DataType: "int", NotNull: true}) - case *ast.Float: - cols = append(cols, &Column{Name: name, DataType: "float", NotNull: true}) - case *ast.Boolean: - cols = append(cols, &Column{Name: name, DataType: "bool", NotNull: true}) - default: - cols = append(cols, &Column{Name: name, DataType: "any", NotNull: false}) - } - - case *ast.A_Expr: - name := "" - if res.Name != nil { - name = *res.Name - } - switch op := astutils.Join(n.Name, ""); { - case lang.IsComparisonOperator(op): - // TODO: Generate a name for these operations - cols = append(cols, &Column{Name: name, DataType: "bool", NotNull: true}) - case lang.IsMathematicalOperator(op): - cols = append(cols, &Column{Name: name, DataType: "int", NotNull: true}) - default: - cols = append(cols, &Column{Name: name, DataType: "any", NotNull: false}) - } - - case *ast.BoolExpr: - name := "" - if res.Name != nil { - name = *res.Name - } - notNull := false - if len(n.Args.Items) == 1 { - switch n.Boolop { - case ast.BoolExprTypeIsNull, ast.BoolExprTypeIsNotNull: - notNull = true - case ast.BoolExprTypeNot: - sublink, ok := n.Args.Items[0].(*ast.SubLink) - if ok && sublink.SubLinkType == ast.EXISTS_SUBLINK { - notNull = true - if name == "" { - name = "not_exists" - } - } - } - } - cols = append(cols, &Column{Name: name, DataType: "bool", NotNull: notNull}) - - case *ast.CaseExpr: - name := "" - if res.Name != nil { - name = *res.Name - } - // TODO: The TypeCase and A_Const code has been copied from below. Instead, we - // need a recurse function to get the type of a node. - if tc, ok := n.Defresult.(*ast.TypeCast); ok { - if tc.TypeName == nil { - return nil, errors.New("no type name type cast") - } - name := "" - if ref, ok := tc.Arg.(*ast.ColumnRef); ok { - name = astutils.Join(ref.Fields, "_") - } - if res.Name != nil { - name = *res.Name - } - // TODO Validate column names - col := toColumn(tc.TypeName) - col.Name = name - cols = append(cols, col) - } else if aconst, ok := n.Defresult.(*ast.A_Const); ok { - switch aconst.Val.(type) { - case *ast.String: - cols = append(cols, &Column{Name: name, DataType: "text", NotNull: true}) - case *ast.Integer: - cols = append(cols, &Column{Name: name, DataType: "int", NotNull: true}) - case *ast.Float: - cols = append(cols, &Column{Name: name, DataType: "float", NotNull: true}) - case *ast.Boolean: - cols = append(cols, &Column{Name: name, DataType: "bool", NotNull: true}) - default: - cols = append(cols, &Column{Name: name, DataType: "any", NotNull: false}) - } - } else { - cols = append(cols, &Column{Name: name, DataType: "any", NotNull: false}) - } - - case *ast.CoalesceExpr: - name := "coalesce" - if res.Name != nil { - name = *res.Name - } - var firstColumn *Column - var shouldNotBeNull bool - for _, arg := range n.Args.Items { - if _, ok := arg.(*ast.A_Const); ok { - shouldNotBeNull = true - continue - } - if ref, ok := arg.(*ast.ColumnRef); ok { - columns, err := outputColumnRefs(res, tables, ref) - if err != nil { - return nil, err - } - for _, c := range columns { - if firstColumn == nil { - firstColumn = c - } - shouldNotBeNull = shouldNotBeNull || c.NotNull - } - } - } - if firstColumn != nil { - firstColumn.NotNull = shouldNotBeNull - firstColumn.skipTableRequiredCheck = true - cols = append(cols, firstColumn) - } else { - cols = append(cols, &Column{Name: name, DataType: "any", NotNull: false}) - } - - case *ast.ColumnRef: - if hasStarRef(n) { - - // add a column with a reference to an embedded table - if embed, ok := qc.embeds.Find(n); ok { - cols = append(cols, &Column{ - Name: embed.Table.Name, - EmbedTable: embed.Table, - }) - continue - } - - // TODO: This code is copied in func expand() - for _, t := range tables { - scope := astutils.Join(n.Fields, ".") - if scope != "" && scope != t.Rel.Name { - continue - } - for _, c := range t.Columns { - cname := c.Name - if res.Name != nil { - cname = *res.Name - } - cols = append(cols, &Column{ - Name: cname, - OriginalName: c.Name, - Type: c.Type, - Scope: scope, - Table: c.Table, - TableAlias: t.Rel.Name, - DataType: c.DataType, - NotNull: c.NotNull, - Unsigned: c.Unsigned, - IsArray: c.IsArray, - ArrayDims: c.ArrayDims, - Length: c.Length, - }) - } - } - continue - } - - columns, err := outputColumnRefs(res, tables, n) - if err != nil { - return nil, err - } - cols = append(cols, columns...) - - case *ast.FuncCall: - rel := n.Func - name := rel.Name - if res.Name != nil { - name = *res.Name - } - fun, err := qc.catalog.ResolveFuncCall(n) - if err == nil { - cols = append(cols, &Column{ - Name: name, - DataType: dataType(fun.ReturnType), - NotNull: !fun.ReturnTypeNullable, - IsFuncCall: true, - }) - } else { - cols = append(cols, &Column{ - Name: name, - DataType: "any", - IsFuncCall: true, - }) - } - - case *ast.SubLink: - name := "exists" - if res.Name != nil { - name = *res.Name - } - switch n.SubLinkType { - case ast.EXISTS_SUBLINK: - cols = append(cols, &Column{Name: name, DataType: "bool", NotNull: true}) - case ast.EXPR_SUBLINK: - subcols, err := c.outputColumns(qc, n.Subselect) - if err != nil { - return nil, err - } - first := subcols[0] - if res.Name != nil { - first.Name = *res.Name - } - cols = append(cols, first) - default: - cols = append(cols, &Column{Name: name, DataType: "any", NotNull: false}) - } - - case *ast.TypeCast: - if n.TypeName == nil { - return nil, errors.New("no type name type cast") - } - name := "" - if ref, ok := n.Arg.(*ast.ColumnRef); ok { - name = astutils.Join(ref.Fields, "_") - } - if res.Name != nil { - name = *res.Name - } - // TODO Validate column names - col := toColumn(n.TypeName) - col.Name = name - // TODO Add correct, real type inference - if constant, ok := n.Arg.(*ast.A_Const); ok { - if _, ok := constant.Val.(*ast.Null); ok { - col.NotNull = false - } - } - cols = append(cols, col) - - case *ast.SelectStmt: - subcols, err := c.outputColumns(qc, n) - if err != nil { - return nil, err - } - first := subcols[0] - if res.Name != nil { - first.Name = *res.Name - } - cols = append(cols, first) - - default: - name := "" - if res.Name != nil { - name = *res.Name - } - cols = append(cols, &Column{Name: name, DataType: "any", NotNull: false}) - + columns, err := c.resolveValue(res, tables, qc, node) + if err != nil { + return nil, err } + cols = append(cols, columns...) } if n, ok := node.(*ast.SelectStmt); ok { @@ -394,12 +139,16 @@ func (c *Compiler) outputColumns(qc *QueryCatalog, node ast.Node) ([]*Column, er if !col.NotNull || col.Table == nil || col.skipTableRequiredCheck { continue } - for _, f := range n.FromClause.Items { - res := isTableRequired(f, col, tableRequired) - if res != tableNotFound { - col.NotNull = res == tableRequired - break + if n.FromClause != nil { + for _, f := range n.FromClause.Items { + res := isTableRequired(f, col, tableRequired) + if res != tableNotFound { + col.NotNull = res == tableRequired + break + } } + } else if debug.Active { + log.Printf("compiler: SelectStmt has nil FromClause while processing column %q from table %q\n", col.Name, col.Table.Name) } } } @@ -496,7 +245,11 @@ func (c *Compiler) sourceTables(qc *QueryCatalog, node ast.Node) ([]*Table, erro } case *ast.SelectStmt: var tv tableVisitor - astutils.Walk(&tv, n.FromClause) + if n.FromClause != nil { + astutils.Walk(&tv, n.FromClause) + } else if debug.Active { + log.Printf("compiler: SelectStmt has nil FromClause in sourceTables\n") + } list = &tv.list case *ast.TruncateStmt: list = astutils.Search(n.Relations, func(node ast.Node) bool { @@ -777,3 +530,324 @@ func findColumnForRef(ref *ast.ColumnRef, tables []*Table, targetList *ast.List) return nil } + +func (c *Compiler) resolveValue(res *ast.ResTarget, tables []*Table, qc *QueryCatalog, node ast.Node) ([]*Column, error) { + var cols []*Column + + switch n := res.Val.(type) { + + case *ast.A_Const: + name := "" + if res.Name != nil { + name = *res.Name + } + switch n.Val.(type) { + case *ast.String: + cols = append(cols, &Column{Name: name, DataType: "text", NotNull: true}) + case *ast.Integer: + cols = append(cols, &Column{Name: name, DataType: "int", NotNull: true}) + case *ast.Float: + cols = append(cols, &Column{Name: name, DataType: "float", NotNull: true}) + case *ast.Boolean: + cols = append(cols, &Column{Name: name, DataType: "bool", NotNull: true}) + default: + cols = append(cols, &Column{Name: name, DataType: "any", NotNull: false}) + } + + case *ast.A_Expr: + name := "" + if res.Name != nil { + name = *res.Name + } + switch op := astutils.Join(n.Name, ""); { + case lang.IsComparisonOperator(op): + // TODO: Generate a name for these operations + cols = append(cols, &Column{Name: name, DataType: "bool", NotNull: true}) + case lang.IsMathematicalOperator(op): + cols = append(cols, &Column{Name: name, DataType: "int", NotNull: true}) + default: + cols = append(cols, &Column{Name: name, DataType: "any", NotNull: false}) + } + + case *ast.BoolExpr: + name := "" + if res.Name != nil { + name = *res.Name + } + notNull := false + if len(n.Args.Items) == 1 { + switch n.Boolop { + case ast.BoolExprTypeIsNull, ast.BoolExprTypeIsNotNull: + notNull = true + case ast.BoolExprTypeNot: + sublink, ok := n.Args.Items[0].(*ast.SubLink) + if ok && sublink.SubLinkType == ast.EXISTS_SUBLINK { + notNull = true + if name == "" { + name = "not_exists" + } + } + } + } + cols = append(cols, &Column{Name: name, DataType: "bool", NotNull: notNull}) + + case *ast.CaseExpr: + name := "" + if res.Name != nil { + name = *res.Name + } + // TODO: The TypeCase and A_Const code has been copied from below. Instead, we + // need a recurse function to get the type of a node. + if tc, ok := n.Defresult.(*ast.TypeCast); ok { + if tc.TypeName == nil { + return nil, errors.New("no type name type cast") + } + name := "" + if ref, ok := tc.Arg.(*ast.ColumnRef); ok { + name = astutils.Join(ref.Fields, "_") + } + if res.Name != nil { + name = *res.Name + } + // TODO Validate column names + col := toColumn(tc.TypeName) + col.Name = name + cols = append(cols, col) + } else if aconst, ok := n.Defresult.(*ast.A_Const); ok { + switch aconst.Val.(type) { + case *ast.String: + cols = append(cols, &Column{Name: name, DataType: "text", NotNull: true}) + case *ast.Integer: + cols = append(cols, &Column{Name: name, DataType: "int", NotNull: true}) + case *ast.Float: + cols = append(cols, &Column{Name: name, DataType: "float", NotNull: true}) + case *ast.Boolean: + cols = append(cols, &Column{Name: name, DataType: "bool", NotNull: true}) + default: + cols = append(cols, &Column{Name: name, DataType: "any", NotNull: false}) + } + } else { + cols = append(cols, &Column{Name: name, DataType: "any", NotNull: false}) + } + + case *ast.CoalesceExpr: + name := "coalesce" + if res.Name != nil { + name = *res.Name + } + var firstColumn *Column + var shouldNotBeNull bool + for _, arg := range n.Args.Items { + if _, ok := arg.(*ast.A_Const); ok { + shouldNotBeNull = true + continue + } + if ref, ok := arg.(*ast.ColumnRef); ok { + columns, err := outputColumnRefs(res, tables, ref) + if err != nil { + return nil, err + } + for _, c := range columns { + if firstColumn == nil { + firstColumn = c + } + shouldNotBeNull = shouldNotBeNull || c.NotNull + } + } + } + if firstColumn != nil { + firstColumn.NotNull = shouldNotBeNull + firstColumn.skipTableRequiredCheck = true + cols = append(cols, firstColumn) + } else { + cols = append(cols, &Column{Name: name, DataType: "any", NotNull: false}) + } + + case *ast.ColumnRef: + if hasStarRef(n) { + + // add a column with a reference to an embedded table + if embed, ok := qc.embeds.Find(n); ok { + cols = append(cols, &Column{ + Name: embed.Table.Name, + EmbedTable: embed.Table, + }) + return cols, nil + } + + // Extract USING columns from the query to avoid duplication + usingMap := getJoinUsingMap(node) + + // TODO: This code is copied in func expand() + for _, t := range tables { + scope := astutils.Join(n.Fields, ".") + if scope != "" && scope != t.Rel.Name { + continue + } + for _, c := range t.Columns { + // Skip columns that are in USING clause for this table + // to avoid duplication (USING naturally returns only one column) + if usingInfo, ok := usingMap[t.Rel.Name]; ok && usingInfo.HasColumn(c.Name) { + continue + } + + cname := c.Name + if res.Name != nil { + cname = *res.Name + } + cols = append(cols, &Column{ + Name: cname, + OriginalName: c.Name, + Type: c.Type, + Scope: scope, + Table: c.Table, + TableAlias: t.Rel.Name, + DataType: c.DataType, + NotNull: c.NotNull, + Unsigned: c.Unsigned, + IsArray: c.IsArray, + ArrayDims: c.ArrayDims, + Length: c.Length, + }) + } + } + return cols, nil + } + + columns, err := outputColumnRefs(res, tables, n) + if err != nil { + return nil, err + } + cols = append(cols, columns...) + + case *ast.FuncCall: + rel := n.Func + name := rel.Name + if res.Name != nil { + name = *res.Name + } + + fun, err := qc.catalog.ResolveFuncCall(n) + if err == nil { + var returnType *ast.TypeName + var resolved bool + if c.TypeResolver != nil { + returnType = c.TypeResolver(n, fun, func(node ast.Node) (*catalog.Column, error) { + res := &ast.ResTarget{Val: node} + cols, err := c.resolveValue(res, tables, qc, node) + if err != nil { + return nil, err + } + if len(cols) == 0 { + return nil, fmt.Errorf("no columns returned") + } + col := cols[0] + var typeName ast.TypeName + if col.Type != nil { + typeName = *col.Type + } else { + typeName = ast.TypeName{Name: col.DataType} + } + return &catalog.Column{ + Name: col.Name, + Type: typeName, + IsNotNull: col.NotNull, + IsUnsigned: col.Unsigned, + IsArray: col.IsArray, + ArrayDims: col.ArrayDims, + Length: col.Length, + }, nil + }) + if returnType != nil { + resolved = true + } + } + if returnType == nil { + returnType = fun.ReturnType + } + + col := &Column{ + Name: name, + DataType: dataType(returnType), + NotNull: !fun.ReturnTypeNullable, + IsFuncCall: true, + } + if resolved { + col.Type = returnType + col.IsArray = returnType != nil && returnType.ArrayBounds != nil + col.ArrayDims = arrayDims(returnType) + } + cols = append(cols, col) + } else { + cols = append(cols, &Column{ + Name: name, + DataType: "any", + IsFuncCall: true, + }) + } + + case *ast.SubLink: + name := "exists" + if res.Name != nil { + name = *res.Name + } + switch n.SubLinkType { + case ast.EXISTS_SUBLINK: + cols = append(cols, &Column{Name: name, DataType: "bool", NotNull: true}) + case ast.EXPR_SUBLINK: + subcols, err := c.outputColumns(qc, n.Subselect) + if err != nil { + return nil, err + } + first := subcols[0] + if res.Name != nil { + first.Name = *res.Name + } + cols = append(cols, first) + default: + cols = append(cols, &Column{Name: name, DataType: "any", NotNull: false}) + } + + case *ast.TypeCast: + if n.TypeName == nil { + return nil, errors.New("no type name type cast") + } + name := "" + if ref, ok := n.Arg.(*ast.ColumnRef); ok { + name = astutils.Join(ref.Fields, "_") + } + if res.Name != nil { + name = *res.Name + } + // TODO Validate column names + col := toColumn(n.TypeName) + col.Name = name + // TODO Add correct, real type inference + if constant, ok := n.Arg.(*ast.A_Const); ok { + if _, ok := constant.Val.(*ast.Null); ok { + col.NotNull = false + } + } + cols = append(cols, col) + + case *ast.SelectStmt: + subcols, err := c.outputColumns(qc, n) + if err != nil { + return nil, err + } + first := subcols[0] + if res.Name != nil { + first.Name = *res.Name + } + cols = append(cols, first) + + default: + name := "" + if res.Name != nil { + name = *res.Name + } + cols = append(cols, &Column{Name: name, DataType: "any", NotNull: false}) + + } + return cols, nil +} diff --git a/internal/compiler/output_columns_test.go b/internal/compiler/output_columns_test.go new file mode 100644 index 0000000000..c0dbc3d6e3 --- /dev/null +++ b/internal/compiler/output_columns_test.go @@ -0,0 +1,122 @@ +package compiler + +import ( + "strings" + "testing" + + "github.com/sqlc-dev/sqlc/internal/config" + "github.com/sqlc-dev/sqlc/internal/engine/clickhouse" + "github.com/sqlc-dev/sqlc/internal/sql/ast" +) + +// TestClickHouseColumnNameResolution tests that column names are properly resolved +// from the catalog when processing SELECT statements with ClickHouse tables. +// This is a regression test for a bug where identifiers were being converted to +// string literals instead of ColumnRef nodes, preventing proper column name lookups. +func TestClickHouseColumnNameResolution(t *testing.T) { + parser := clickhouse.NewParser() + cat := clickhouse.NewCatalog() + + // Parse and add schema - CREATE DATABASE first, then table + schemaSQL := `CREATE DATABASE IF NOT EXISTS sqlc_example; +CREATE TABLE sqlc_example.users ( + id UInt32, + name String, + email String, + created_at DateTime +)` + + stmts, err := parser.Parse(strings.NewReader(schemaSQL)) + if err != nil { + t.Fatalf("Parse schema failed: %v", err) + } + + for _, stmt := range stmts { + if err := cat.Update(stmt, nil); err != nil { + t.Fatalf("Update catalog failed: %v", err) + } + } + + // Verify catalog is populated + t.Logf("Catalog schemas: %d", len(cat.Schemas)) + found := false + for _, schema := range cat.Schemas { + if schema.Name == "sqlc_example" { + found = true + t.Logf("Found sqlc_example schema with %d tables", len(schema.Tables)) + if len(schema.Tables) > 0 { + tbl := schema.Tables[0] + t.Logf(" Table: %s.%s with %d columns", schema.Name, tbl.Rel.Name, len(tbl.Columns)) + for _, col := range tbl.Columns { + t.Logf(" Column: %s (type: %v)", col.Name, col.Type) + } + } + } + } + if !found { + t.Fatal("sqlc_example schema not found in catalog") + } + + // Create compiler + conf := config.SQL{ + Engine: config.EngineClickHouse, + } + combo := config.CombinedSettings{ + Global: config.Config{}, + } + + c, err := NewCompiler(conf, combo) + if err != nil { + t.Fatalf("Failed to create compiler: %v", err) + } + + // Replace the catalog with our populated one + c.catalog = cat + + // Parse a SELECT query + querySQL := "SELECT id, name, email FROM sqlc_example.users WHERE id = 1;" + queryStmts, err := parser.Parse(strings.NewReader(querySQL)) + if err != nil { + t.Fatalf("Parse query failed: %v", err) + } + + if len(queryStmts) == 0 { + t.Fatal("No queries parsed") + } + + selectStmt := queryStmts[0].Raw.Stmt + if selectStmt == nil { + t.Fatal("Select statement is nil") + } + + selectAst, ok := selectStmt.(*ast.SelectStmt) + if !ok { + t.Fatalf("Expected SelectStmt, got %T", selectStmt) + } + + // Build the query catalog first + qc, err := c.buildQueryCatalog(c.catalog, selectAst, nil) + if err != nil { + t.Fatalf("Failed to build query catalog: %v", err) + } + + // Get output columns + cols, err := c.outputColumns(qc, selectAst) + if err != nil { + t.Fatalf("Failed to get output columns: %v", err) + } + + // Check if names are properly resolved + if len(cols) != 3 { + t.Errorf("Expected 3 columns, got %d", len(cols)) + } + + expectedNames := []string{"id", "name", "email"} + for i, expected := range expectedNames { + if i < len(cols) { + if cols[i].Name != expected { + t.Errorf("Column %d: expected name %q, got %q", i, expected, cols[i].Name) + } + } + } +} diff --git a/internal/compiler/type_resolution_test.go b/internal/compiler/type_resolution_test.go new file mode 100644 index 0000000000..14e7099092 --- /dev/null +++ b/internal/compiler/type_resolution_test.go @@ -0,0 +1,538 @@ +package compiler + +import ( + "strings" + "testing" + + "github.com/sqlc-dev/sqlc/internal/config" + "github.com/sqlc-dev/sqlc/internal/opts" +) + +func TestNewCompilerClickHouse(t *testing.T) { + conf := config.SQL{ + Engine: config.EngineClickHouse, + } + + combo := config.CombinedSettings{ + Global: config.Config{}, + } + + c, err := NewCompiler(conf, combo) + if err != nil { + t.Fatalf("unexpected error creating ClickHouse compiler: %v", err) + } + + if c.parser == nil { + t.Error("expected parser to be set") + } + + if c.catalog == nil { + t.Error("expected catalog to be set") + } + + if c.parser.CommentSyntax().Dash == false { + t.Error("expected ClickHouse parser to support dash comments") + } + + if c.parser.CommentSyntax().SlashStar == false { + t.Error("expected ClickHouse parser to support slash-star comments") + } +} + +func TestClickHouseTypeResolver(t *testing.T) { + schema := ` +CREATE TABLE events ( + id UInt64, + tags Array(String), + scores Array(UInt32) +) ENGINE = Memory; +` + query := ` +-- name: TestArrayJoin :many +SELECT arrayJoin(tags) as tag FROM events; + +-- name: TestCount :one +SELECT count(*) FROM events; + +-- name: TestArgMin :one +SELECT argMin(id, id) FROM events; + +-- name: TestAny :one +SELECT any(tags) FROM events; +` + + conf := config.SQL{ + Engine: config.EngineClickHouse, + } + + c, err := NewCompiler(conf, config.CombinedSettings{}) + if err != nil { + t.Fatal(err) + } + + // Manually update catalog with schema + c.schema = append(c.schema, schema) + stmts, err := c.parser.Parse(strings.NewReader(schema)) + if err != nil { + t.Fatal(err) + } + for _, stmt := range stmts { + if err := c.catalog.Update(stmt, c); err != nil { + t.Fatal(err) + } + } + + // Parse queries + queryStmts, err := c.parser.Parse(strings.NewReader(query)) + if err != nil { + t.Fatal(err) + } + + for _, stmt := range queryStmts { + q, err := c.parseQuery(stmt.Raw, query, opts.Parser{}) + if err != nil { + t.Fatal(err) + } + if q == nil { + continue + } + + // Verify types + switch q.Metadata.Name { + case "TestArrayJoin": + if len(q.Columns) != 1 { + t.Errorf("TestArrayJoin: expected 1 column, got %d", len(q.Columns)) + } + col := q.Columns[0] + if col.DataType != "text" { // String maps to text + t.Errorf("TestArrayJoin: expected text, got %s", col.DataType) + } + if col.IsArray { + t.Errorf("TestArrayJoin: expected not array") + } + + case "TestCount": + if len(q.Columns) != 1 { + t.Errorf("TestCount: expected 1 column, got %d", len(q.Columns)) + } + col := q.Columns[0] + if col.DataType != "uint64" { + t.Errorf("TestCount: expected uint64, got %s", col.DataType) + } + + case "TestArgMin": + if len(q.Columns) != 1 { + t.Errorf("TestArgMin: expected 1 column, got %d", len(q.Columns)) + } + col := q.Columns[0] + if col.DataType != "uint64" { + t.Errorf("TestArgMin: expected uint64, got %s", col.DataType) + } + + case "TestAny": + if len(q.Columns) != 1 { + t.Errorf("TestAny: expected 1 column, got %d", len(q.Columns)) + } + col := q.Columns[0] + if col.DataType != "text" { // text[] in sqlc usually maps to text with IsArray=true + t.Errorf("TestAny: expected text, got %s", col.DataType) + } + if !col.IsArray { + t.Errorf("TestAny: expected array") + } + } + } +} + +func TestClickHouseLimitParameterType(t *testing.T) { + schema := ` +CREATE TABLE users ( + id UInt32, + name String, + email String, + created_at DateTime +) ENGINE = Memory; +` + query := ` +-- name: ListUsers :many +SELECT id, name, email, created_at +FROM users +LIMIT ?; +` + + conf := config.SQL{ + Engine: config.EngineClickHouse, + } + + c, err := NewCompiler(conf, config.CombinedSettings{}) + if err != nil { + t.Fatal(err) + } + + // Manually update catalog with schema + c.schema = append(c.schema, schema) + stmts, err := c.parser.Parse(strings.NewReader(schema)) + if err != nil { + t.Fatal(err) + } + for _, stmt := range stmts { + if err := c.catalog.Update(stmt, c); err != nil { + t.Fatal(err) + } + } + + // Parse queries + queryStmts, err := c.parser.Parse(strings.NewReader(query)) + if err != nil { + t.Fatal(err) + } + + for _, stmt := range queryStmts { + q, err := c.parseQuery(stmt.Raw, query, opts.Parser{}) + if err != nil { + t.Fatal(err) + } + if q == nil { + continue + } + + // Check parameters + if len(q.Params) != 1 { + t.Errorf("Expected 1 parameter, got %d", len(q.Params)) + } + + param := q.Params[0] + t.Logf("Parameter: Name=%s, DataType=%s, Number=%d", param.Column.Name, param.Column.DataType, param.Number) + + if param.Column.DataType != "integer" { + t.Errorf("Expected integer type for LIMIT parameter, got %s", param.Column.DataType) + } + } +} + +func TestClickHouseLowCardinality(t *testing.T) { + schema := ` +CREATE TABLE products ( + id UInt32, + category LowCardinality(String), + status LowCardinality(String), + priority LowCardinality(UInt8) +) ENGINE = Memory; +` + query := ` +-- name: GetProductsByCategory :many +SELECT id, category, status, priority FROM products WHERE category = ?; +` + + conf := config.SQL{ + Engine: config.EngineClickHouse, + } + + c, err := NewCompiler(conf, config.CombinedSettings{}) + if err != nil { + t.Fatal(err) + } + + // Manually update catalog with schema + c.schema = append(c.schema, schema) + stmts, err := c.parser.Parse(strings.NewReader(schema)) + if err != nil { + t.Fatal(err) + } + for _, stmt := range stmts { + if err := c.catalog.Update(stmt, c); err != nil { + t.Fatal(err) + } + } + + // Parse queries + queryStmts, err := c.parser.Parse(strings.NewReader(query)) + if err != nil { + t.Fatal(err) + } + + for _, stmt := range queryStmts { + q, err := c.parseQuery(stmt.Raw, query, opts.Parser{}) + if err != nil { + t.Fatal(err) + } + if q == nil { + continue + } + + // Check that LowCardinality columns are correctly resolved + if len(q.Columns) < 4 { + t.Fatalf("Expected at least 4 columns, got %d", len(q.Columns)) + } + + tests := []struct { + colIndex int + name string + dataType string + }{ + {0, "id", "uint32"}, + {1, "category", "text"}, // LowCardinality(String) -> String -> text + {2, "status", "text"}, // LowCardinality(String) -> String -> text + {3, "priority", "uint8"}, // LowCardinality(UInt8) -> UInt8 -> uint8 + } + + for _, test := range tests { + if test.colIndex >= len(q.Columns) { + t.Errorf("Column index %d out of bounds", test.colIndex) + continue + } + + col := q.Columns[test.colIndex] + if col.Name != test.name { + t.Errorf("Column %d: expected name %q, got %q", test.colIndex, test.name, col.Name) + } + if col.DataType != test.dataType { + t.Errorf("Column %q: expected type %q, got %q", col.Name, test.dataType, col.DataType) + } + } + + // Check parameter (the WHERE clause) + if len(q.Params) != 1 { + t.Errorf("Expected 1 parameter, got %d", len(q.Params)) + } else { + param := q.Params[0] + if param.Column.DataType != "text" { + t.Errorf("Expected text type for category parameter, got %s", param.Column.DataType) + } + } + } +} + +func TestClickHouseIPAddressTypes(t *testing.T) { + schema := ` +CREATE TABLE network_data ( + id UInt32, + source_ip IPv4, + dest_ip IPv4, + ipv6_addr IPv6, + nullable_ip Nullable(IPv4) +) ENGINE = Memory; +` + query := ` +-- name: GetNetworkData :one +SELECT id, source_ip, dest_ip, ipv6_addr, nullable_ip FROM network_data WHERE id = ?; + +-- name: FilterByIPv4 :many +SELECT id, source_ip FROM network_data WHERE source_ip = ?; + +-- name: FilterByIPv6 :many +SELECT id, ipv6_addr FROM network_data WHERE ipv6_addr = ?; +` + + conf := config.SQL{ + Engine: config.EngineClickHouse, + } + + c, err := NewCompiler(conf, config.CombinedSettings{}) + if err != nil { + t.Fatal(err) + } + + // Manually update catalog with schema + c.schema = append(c.schema, schema) + stmts, err := c.parser.Parse(strings.NewReader(schema)) + if err != nil { + t.Fatal(err) + } + for _, stmt := range stmts { + if err := c.catalog.Update(stmt, c); err != nil { + t.Fatal(err) + } + } + + // Parse queries + queryStmts, err := c.parser.Parse(strings.NewReader(query)) + if err != nil { + t.Fatal(err) + } + + for _, stmt := range queryStmts { + q, err := c.parseQuery(stmt.Raw, query, opts.Parser{}) + if err != nil { + t.Fatal(err) + } + if q == nil { + continue + } + + switch q.Metadata.Name { + case "GetNetworkData": + if len(q.Columns) != 5 { + t.Errorf("GetNetworkData: expected 5 columns, got %d", len(q.Columns)) + } + + tests := []struct { + colIndex int + name string + dataType string + }{ + {0, "id", "uint32"}, + {1, "source_ip", "ipv4"}, + {2, "dest_ip", "ipv4"}, + {3, "ipv6_addr", "ipv6"}, + {4, "nullable_ip", "ipv4"}, + } + + for _, test := range tests { + if test.colIndex >= len(q.Columns) { + t.Errorf("Column index %d out of bounds", test.colIndex) + continue + } + + col := q.Columns[test.colIndex] + if col.Name != test.name { + t.Errorf("Column %d: expected name %q, got %q", test.colIndex, test.name, col.Name) + } + if col.DataType != test.dataType { + t.Errorf("Column %q: expected type %q, got %q", col.Name, test.dataType, col.DataType) + } + } + + // Check parameter (id filter) + if len(q.Params) != 1 { + t.Errorf("Expected 1 parameter, got %d", len(q.Params)) + } else { + param := q.Params[0] + if param.Column.DataType != "uint32" { + t.Errorf("Expected uint32 type for id parameter, got %s", param.Column.DataType) + } + } + + case "FilterByIPv4": + if len(q.Columns) != 2 { + t.Errorf("FilterByIPv4: expected 2 columns, got %d", len(q.Columns)) + } + + col := q.Columns[1] + if col.Name != "source_ip" { + t.Errorf("Expected column name source_ip, got %q", col.Name) + } + if col.DataType != "ipv4" { + t.Errorf("Expected ipv4 type, got %s", col.DataType) + } + + // Check parameter (IPv4 filter) + if len(q.Params) != 1 { + t.Errorf("Expected 1 parameter, got %d", len(q.Params)) + } else { + param := q.Params[0] + if param.Column.DataType != "ipv4" { + t.Errorf("Expected ipv4 type for IP parameter, got %s", param.Column.DataType) + } + } + + case "FilterByIPv6": + if len(q.Columns) != 2 { + t.Errorf("FilterByIPv6: expected 2 columns, got %d", len(q.Columns)) + } + + col := q.Columns[1] + if col.Name != "ipv6_addr" { + t.Errorf("Expected column name ipv6_addr, got %q", col.Name) + } + if col.DataType != "ipv6" { + t.Errorf("Expected ipv6 type, got %s", col.DataType) + } + + // Check parameter (IPv6 filter) + if len(q.Params) != 1 { + t.Errorf("Expected 1 parameter, got %d", len(q.Params)) + } else { + param := q.Params[0] + if param.Column.DataType != "ipv6" { + t.Errorf("Expected ipv6 type for IP parameter, got %s", param.Column.DataType) + } + } + } + } +} + +func TestClickHouseMapType(t *testing.T) { + schema := ` +CREATE TABLE config ( + id UInt32, + settings Map(String, String), + metrics Map(String, UInt64), + nested_data Map(String, Array(String)), + invalid_key Map(Array(String), String) +) ENGINE = Memory; +` + query := ` +-- name: GetConfig :one +SELECT id, settings, metrics, nested_data, invalid_key FROM config WHERE id = ?; +` + + conf := config.SQL{ + Engine: config.EngineClickHouse, + } + + c, err := NewCompiler(conf, config.CombinedSettings{}) + if err != nil { + t.Fatal(err) + } + + // Manually update catalog with schema + c.schema = append(c.schema, schema) + stmts, err := c.parser.Parse(strings.NewReader(schema)) + if err != nil { + t.Fatal(err) + } + for _, stmt := range stmts { + if err := c.catalog.Update(stmt, c); err != nil { + t.Fatal(err) + } + } + + // Parse queries + queryStmts, err := c.parser.Parse(strings.NewReader(query)) + if err != nil { + t.Fatal(err) + } + + for _, stmt := range queryStmts { + q, err := c.parseQuery(stmt.Raw, query, opts.Parser{}) + if err != nil { + t.Fatal(err) + } + if q == nil { + continue + } + + // Check that Map columns are correctly resolved + if len(q.Columns) < 5 { + t.Fatalf("Expected at least 5 columns, got %d", len(q.Columns)) + } + + tests := []struct { + colIndex int + name string + dataType string + }{ + {0, "id", "uint32"}, + {1, "settings", "map[string]string"}, // Map(String, String) -> map[string]string + {2, "metrics", "map[string]uint64"}, // Map(String, UInt64) -> map[string]uint64 + {3, "nested_data", "map[string][]string"}, // Map(String, Array(String)) -> map[string][]string + {4, "invalid_key", "map[string]interface{}"}, // Map(Array(String), String) -> falls back due to invalid key + } + + for _, test := range tests { + if test.colIndex >= len(q.Columns) { + t.Errorf("Column index %d out of bounds", test.colIndex) + continue + } + + col := q.Columns[test.colIndex] + if col.Name != test.name { + t.Errorf("Column %d: expected name %q, got %q", test.colIndex, test.name, col.Name) + } + if col.DataType != test.dataType { + t.Errorf("Column %q: expected type %q, got %q", col.Name, test.dataType, col.DataType) + } + } + } +} diff --git a/internal/compiler/using.go b/internal/compiler/using.go new file mode 100644 index 0000000000..c9b24df79b --- /dev/null +++ b/internal/compiler/using.go @@ -0,0 +1,73 @@ +package compiler + +import ( + "github.com/sqlc-dev/sqlc/internal/sql/ast" + "github.com/sqlc-dev/sqlc/internal/sql/astutils" +) + +// UsingInfo tracks USING columns for a specific join to avoid duplication +// when expanding SELECT * across multiple tables +type UsingInfo struct { + // columns is a set of column names that appear in the USING clause + columns map[string]bool +} + +// NewUsingInfo creates a new UsingInfo from a JoinExpr's UsingClause +func NewUsingInfo(joinExpr *ast.JoinExpr) *UsingInfo { + ui := &UsingInfo{ + columns: make(map[string]bool), + } + + if joinExpr == nil || joinExpr.UsingClause == nil { + return ui + } + + // Extract column names from the USING clause + for _, item := range joinExpr.UsingClause.Items { + if str, ok := item.(*ast.String); ok { + ui.columns[str.Str] = true + } + } + + return ui +} + +// HasColumn checks if a column name is in the USING clause +func (ui *UsingInfo) HasColumn(colName string) bool { + return ui.columns[colName] +} + +// getJoinUsingMap builds a map of table names to their USING columns +// This helps identify which columns should not be duplicated when expanding * +func getJoinUsingMap(node ast.Node) map[string]*UsingInfo { + usingMap := make(map[string]*UsingInfo) + + // Find all JoinExpr nodes in the query and extract USING information + visitor := &joinVisitor{ + usingMap: usingMap, + } + astutils.Walk(visitor, node) + + return usingMap +} + +// joinVisitor traverses the AST to find and track USING information in joins +type joinVisitor struct { + usingMap map[string]*UsingInfo +} + +func (v *joinVisitor) Visit(node ast.Node) astutils.Visitor { + if join, ok := node.(*ast.JoinExpr); ok { + // Create UsingInfo for this join + // The right argument of the join is the table being joined in + if rarg, ok := join.Rarg.(*ast.RangeVar); ok { + if rarg.Relname != nil { + usingInfo := NewUsingInfo(join) + if len(usingInfo.columns) > 0 { + v.usingMap[*rarg.Relname] = usingInfo + } + } + } + } + return v +} diff --git a/internal/compiler/using_test.go b/internal/compiler/using_test.go new file mode 100644 index 0000000000..6e4c51846a --- /dev/null +++ b/internal/compiler/using_test.go @@ -0,0 +1,66 @@ +package compiler + +import ( + "testing" + + "github.com/sqlc-dev/sqlc/internal/sql/ast" +) + +func TestGetJoinUsingMap(t *testing.T) { + // Create a mock JoinExpr with USING clause + joinExpr := &ast.JoinExpr{ + UsingClause: &ast.List{ + Items: []ast.Node{ + &ast.String{Str: "order_id"}, + }, + }, + Rarg: &ast.RangeVar{ + Relname: strPtr("shipments"), + }, + } + + selectStmt := &ast.SelectStmt{ + FromClause: &ast.List{ + Items: []ast.Node{ + joinExpr, + }, + }, + } + + usingMap := getJoinUsingMap(selectStmt) + + if info, ok := usingMap["shipments"]; ok { + if !info.HasColumn("order_id") { + t.Errorf("Expected order_id to be in USING clause for shipments") + } + } else { + t.Errorf("Expected shipments to be in using map") + } +} + +func TestNewUsingInfo(t *testing.T) { + joinExpr := &ast.JoinExpr{ + UsingClause: &ast.List{ + Items: []ast.Node{ + &ast.String{Str: "id"}, + &ast.String{Str: "type_id"}, + }, + }, + } + + info := NewUsingInfo(joinExpr) + + if !info.HasColumn("id") { + t.Errorf("Expected id to be in USING columns") + } + if !info.HasColumn("type_id") { + t.Errorf("Expected type_id to be in USING columns") + } + if info.HasColumn("other_id") { + t.Errorf("Did not expect other_id to be in USING columns") + } +} + +func strPtr(s string) *string { + return &s +} diff --git a/internal/sql/catalog/catalog.go b/internal/sql/catalog/catalog.go index 278ea8797d..1ead170eac 100644 --- a/internal/sql/catalog/catalog.go +++ b/internal/sql/catalog/catalog.go @@ -33,6 +33,155 @@ func New(defaultSchema string) *Catalog { return newCatalog } +// Clone creates a deep copy of the catalog, preserving all schemas, tables, types, and functions. +// This is used to create isolated copies for query parsing where functions might be registered +// with context-dependent types without affecting the original catalog. +func (c *Catalog) Clone() *Catalog { + if c == nil { + return nil + } + + cloned := &Catalog{ + Comment: c.Comment, + DefaultSchema: c.DefaultSchema, + Name: c.Name, + Schemas: make([]*Schema, 0, len(c.Schemas)), + SearchPath: make([]string, len(c.SearchPath)), + LoadExtension: c.LoadExtension, + Extensions: make(map[string]struct{}), + } + + // Copy search path + copy(cloned.SearchPath, c.SearchPath) + + // Copy extensions + for k, v := range c.Extensions { + cloned.Extensions[k] = v + } + + // Clone schemas + for _, schema := range c.Schemas { + cloned.Schemas = append(cloned.Schemas, cloneSchema(schema)) + } + + return cloned +} + +func cloneSchema(s *Schema) *Schema { + if s == nil { + return nil + } + + cloned := &Schema{ + Name: s.Name, + Comment: s.Comment, + Tables: make([]*Table, len(s.Tables)), + Types: make([]Type, len(s.Types)), + Funcs: make([]*Function, len(s.Funcs)), + } + + // Clone tables + for i, table := range s.Tables { + cloned.Tables[i] = cloneTable(table) + } + + // Clone types + for i, t := range s.Types { + cloned.Types[i] = cloneType(t) + } + + // Clone functions + for i, fn := range s.Funcs { + cloned.Funcs[i] = cloneFunction(fn) + } + + return cloned +} + +func cloneFunction(f *Function) *Function { + if f == nil { + return nil + } + + cloned := &Function{ + Name: f.Name, + Comment: f.Comment, + Desc: f.Desc, + ReturnType: f.ReturnType, // ast.TypeName is immutable for our purposes + ReturnTypeNullable: f.ReturnTypeNullable, + Args: make([]*Argument, len(f.Args)), + } + + for i, arg := range f.Args { + if arg != nil { + cloned.Args[i] = &Argument{ + Name: arg.Name, + Type: arg.Type, // ast.TypeName is immutable + HasDefault: arg.HasDefault, + Mode: arg.Mode, + } + } + } + + return cloned +} + +func cloneTable(t *Table) *Table { + if t == nil { + return nil + } + + cloned := &Table{ + Rel: t.Rel, + Comment: t.Comment, + Columns: make([]*Column, len(t.Columns)), + } + + for i, col := range t.Columns { + if col != nil { + colClone := &Column{ + Name: col.Name, + Type: col.Type, + IsNotNull: col.IsNotNull, + IsUnsigned: col.IsUnsigned, + IsArray: col.IsArray, + ArrayDims: col.ArrayDims, + Comment: col.Comment, + linkedType: col.linkedType, + } + if col.Length != nil { + length := *col.Length + colClone.Length = &length + } + cloned.Columns[i] = colClone + } + } + + return cloned +} + +func cloneType(t Type) Type { + if t == nil { + return nil + } + + switch typ := t.(type) { + case *Enum: + return &Enum{ + Name: typ.Name, + Vals: append([]string{}, typ.Vals...), + Comment: typ.Comment, + } + case *CompositeType: + return &CompositeType{ + Name: typ.Name, + Comment: typ.Comment, + } + default: + return t + } +} + func (c *Catalog) Build(stmts []ast.Statement) error { for i := range stmts { if err := c.Update(stmts[i], nil); err != nil { From cec1ed968645363ab3dafc164381723d4b9b2151 Mon Sep 17 00:00:00 2001 From: Miguel Eduardo Gil Biraud Date: Sat, 6 Dec 2025 14:54:05 +0000 Subject: [PATCH 07/13] Add ClickHouse test database adapters Docker and local connection adapters for integration testing. Enables end-to-end testing with real ClickHouse instances. --- internal/sqltest/docker/clickhouse.go | 109 ++++++++++++++++++++++++++ internal/sqltest/local/clickhouse.go | 99 +++++++++++++++++++++++ 2 files changed, 208 insertions(+) create mode 100644 internal/sqltest/docker/clickhouse.go create mode 100644 internal/sqltest/local/clickhouse.go diff --git a/internal/sqltest/docker/clickhouse.go b/internal/sqltest/docker/clickhouse.go new file mode 100644 index 0000000000..fa95b3a83e --- /dev/null +++ b/internal/sqltest/docker/clickhouse.go @@ -0,0 +1,109 @@ +package docker + +import ( + "context" + "database/sql" + "fmt" + "log/slog" + "os/exec" + "strings" + "time" + + _ "github.com/ClickHouse/clickhouse-go/v2" +) + +var clickhouseHost string + +func StartClickHouseServer(c context.Context) (string, error) { + if err := Installed(); err != nil { + return "", err + } + if clickhouseHost != "" { + return clickhouseHost, nil + } + value, err, _ := flight.Do("clickhouse", func() (interface{}, error) { + host, err := startClickHouseServer(c) + if err != nil { + return "", err + } + clickhouseHost = host + return host, err + }) + if err != nil { + return "", err + } + data, ok := value.(string) + if !ok { + return "", fmt.Errorf("returned value was not a string") + } + return data, nil +} + +func startClickHouseServer(c context.Context) (string, error) { + { + _, err := exec.Command("docker", "pull", "clickhouse:lts").CombinedOutput() + if err != nil { + return "", fmt.Errorf("docker pull: clickhouse:lts %w", err) + } + } + + var exists bool + { + cmd := exec.Command("docker", "container", "inspect", "sqlc_sqltest_docker_clickhouse") + // This means we've already started the container + exists = cmd.Run() == nil + } + + if !exists { + cmd := exec.Command("docker", "run", + "--name", "sqlc_sqltest_docker_clickhouse", + "-p", "9000:9000", + "-p", "8123:8123", + "-e", "CLICKHOUSE_DB=default", + "-e", "CLICKHOUSE_DEFAULT_ACCESS_MANAGEMENT=1", + "-d", + "clickhouse:lts", + ) + + output, err := cmd.CombinedOutput() + fmt.Println(string(output)) + + msg := `Conflict. The container name "/sqlc_sqltest_docker_clickhouse" is already in use by container` + if !strings.Contains(string(output), msg) && err != nil { + return "", err + } + } + + ctx, cancel := context.WithTimeout(c, 10*time.Second) + defer cancel() + + // Create a ticker that fires every 10ms + ticker := time.NewTicker(10 * time.Millisecond) + defer ticker.Stop() + + // ClickHouse DSN format: clickhouse://host:port + dsn := "clickhouse://localhost:9000/default" + + for { + select { + case <-ctx.Done(): + return "", fmt.Errorf("timeout reached: %w", ctx.Err()) + + case <-ticker.C: + db, err := sql.Open("clickhouse", dsn) + if err != nil { + slog.Debug("sqltest", "open", err) + continue + } + + if err := db.PingContext(ctx); err != nil { + slog.Debug("sqltest", "ping", err) + db.Close() + continue + } + + db.Close() + return dsn, nil + } + } +} diff --git a/internal/sqltest/local/clickhouse.go b/internal/sqltest/local/clickhouse.go new file mode 100644 index 0000000000..b4c9090aa9 --- /dev/null +++ b/internal/sqltest/local/clickhouse.go @@ -0,0 +1,99 @@ +package local + +import ( + "context" + "database/sql" + "fmt" + "hash/fnv" + "os" + "strings" + "testing" + + migrate "github.com/sqlc-dev/sqlc/internal/migrations" + "github.com/sqlc-dev/sqlc/internal/sql/sqlpath" + "github.com/sqlc-dev/sqlc/internal/sqltest/docker" + + _ "github.com/ClickHouse/clickhouse-go/v2" +) + +func ClickHouse(t *testing.T, migrations []string) string { + ctx := context.Background() + t.Helper() + + dburi := os.Getenv("CLICKHOUSE_SERVER_URI") + if dburi == "" { + if ierr := docker.Installed(); ierr == nil { + u, err := docker.StartClickHouseServer(ctx) + if err != nil { + t.Fatal(err) + } + dburi = u + } else { + t.Skip("CLICKHOUSE_SERVER_URI is empty") + } + } + + // Open connection to ClickHouse + db, err := sql.Open("clickhouse", dburi) + if err != nil { + t.Fatalf("ClickHouse connection failed: %s", err) + } + defer db.Close() + + var seed []string + files, err := sqlpath.Glob(migrations) + if err != nil { + t.Fatal(err) + } + + h := fnv.New64() + for _, f := range files { + blob, err := os.ReadFile(f) + if err != nil { + t.Fatal(err) + } + h.Write(blob) + seed = append(seed, migrate.RemoveRollbackStatements(string(blob))) + } + + // Create unique database name + name := fmt.Sprintf("sqlc_test_%x", h.Sum(nil)) + + // Drop database if it exists (ClickHouse style) + dropQuery := fmt.Sprintf(`DROP DATABASE IF EXISTS %s`, name) + if _, err := db.ExecContext(ctx, dropQuery); err != nil { + t.Logf("could not drop database (may not exist): %s", err) + } + + // Create new database + createQuery := fmt.Sprintf(`CREATE DATABASE IF NOT EXISTS %s`, name) + if _, err := db.ExecContext(ctx, createQuery); err != nil { + t.Fatalf("failed to create database: %s", err) + } + + // Execute migration scripts + dbWithDatabase := fmt.Sprintf("%s?database=%s", dburi, name) + dbConn, err := sql.Open("clickhouse", dbWithDatabase) + if err != nil { + t.Fatalf("ClickHouse connection to new database failed: %s", err) + } + defer dbConn.Close() + + for _, q := range seed { + if len(strings.TrimSpace(q)) == 0 { + continue + } + if _, err := dbConn.ExecContext(ctx, q); err != nil { + t.Fatalf("migration failed: %s: %s", q, err) + } + } + + // Register cleanup + t.Cleanup(func() { + if _, err := db.ExecContext(ctx, dropQuery); err != nil { + t.Logf("failed cleaning up database: %s", err) + } + }) + + return dbWithDatabase +} From 15d203a0d3b3fb419a730944bb0a50e12545d920 Mon Sep 17 00:00:00 2001 From: Miguel Eduardo Gil Biraud Date: Sat, 6 Dec 2025 14:54:17 +0000 Subject: [PATCH 08/13] Add ClickHouse documentation and example project Getting started guide, configuration and datatype reference updates, example project with schema and queries, development guide updates, Docker Compose configuration for ClickHouse service. --- CLAUDE.md | 54 +++- Makefile | 2 +- docker-compose.yml | 7 + docs/index.rst | 1 + docs/reference/config.md | 7 +- docs/reference/datatypes.md | 83 +++++- docs/reference/language-support.rst | 18 +- docs/tutorials/getting-started-clickhouse.md | 184 ++++++++++++ examples/clickhouse/README.md | 146 +++++++++ examples/clickhouse/USAGE.md | 207 +++++++++++++ examples/clickhouse/go.mod | 21 ++ examples/clickhouse/go.sum | 106 +++++++ examples/clickhouse/queries.sql | 293 +++++++++++++++++++ examples/clickhouse/schema.sql | 208 +++++++++++++ examples/clickhouse/sqlc.yaml | 13 + 15 files changed, 1334 insertions(+), 16 deletions(-) create mode 100644 docs/tutorials/getting-started-clickhouse.md create mode 100644 examples/clickhouse/README.md create mode 100644 examples/clickhouse/USAGE.md create mode 100644 examples/clickhouse/go.mod create mode 100644 examples/clickhouse/go.sum create mode 100644 examples/clickhouse/queries.sql create mode 100644 examples/clickhouse/schema.sql create mode 100644 examples/clickhouse/sqlc.yaml diff --git a/CLAUDE.md b/CLAUDE.md index 9d637256a1..93d08ad0aa 100644 --- a/CLAUDE.md +++ b/CLAUDE.md @@ -189,6 +189,7 @@ POSTGRESQL_SERVER_URI="postgres://postgres:mysecretpassword@localhost:5432/postg - `/cmd/` - Main binaries (sqlc, sqlc-gen-json) - `/internal/cmd/` - Command implementations (vet, generate, etc.) - `/internal/engine/` - Database engine implementations + - `/clickhouse/` - ClickHouse parser and converter - `/postgresql/` - PostgreSQL parser and converter - `/dolphin/` - MySQL parser (uses TiDB parser) - `/sqlite/` - SQLite parser @@ -289,6 +290,55 @@ git push --force-with-lease origin - **CI Configuration:** `/.github/workflows/ci.yml` - **Docker Compose:** `/docker-compose.yml` +## ClickHouse Engine Support + +### Implementation Details + +The ClickHouse engine was added to support ClickHouse SQL parsing and code generation using the `github.com/AfterShip/clickhouse-sql-parser` library. + +**Files involved:** +- `internal/engine/clickhouse/parse.go` - Parser implementation +- `internal/engine/clickhouse/convert.go` - AST converter +- `internal/engine/clickhouse/catalog.go` - Catalog initialization +- `internal/config/config.go` - Engine constant registration +- `internal/compiler/engine.go` - Compiler integration +- `internal/compiler/expand.go` - Quote character handling +- `examples/clickhouse/` - Example project + +**Key features:** +- Parses ClickHouse SQL into sqlc's internal AST +- Supports comment syntax: `--` and `/* */` +- Uses backticks for identifier quoting (ClickHouse standard) +- Handles ClickHouse-specific keywords + +**Testing:** +```bash +# Test ClickHouse engine (unit tests) +go test ./internal/engine/clickhouse -v + +# Test compiler integration +go test ./internal/compiler -v -run TestNewCompilerClickHouse + +# Test code generation +cd examples/clickhouse && /path/to/sqlc generate && go mod init github.com/example/clickhouse && go mod tidy && go build ./gen +``` + +**Test Coverage:** +- Basic SELECT queries with WHERE, ORDER BY, LIMIT +- INSERT statements with VALUES +- Aggregate queries (COUNT, SUM, AVG) with GROUP BY and HAVING +- UNION and UNION ALL queries +- Subqueries and derived tables +- Multiple JOINs (INNER, LEFT, RIGHT, FULL) +- Window functions with OVER clause +- CAST expressions +- CASE expressions +- IS NULL / IS NOT NULL expressions +- Unary expressions (NOT, negation) +- Number literals (int, float, scientific notation) +- String literals and functions +- ClickHouse-specific features (PREWHERE, SAMPLE, array functions) + ## Recent Fixes & Improvements ### Fixed Issues @@ -296,13 +346,15 @@ git push --force-with-lease origin 1. **Typo in create_function_stmt.go** - Fixed "Undertand" → "Understand" 2. **Race condition in vet.go** - Fixed Client initialization using `sync.Once` 3. **Nil pointer dereference in parse.go** - Fixed unsafe type assertion in primary key parsing +4. **ClickHouse engine addition** - Added full ClickHouse SQL support with AST parsing These fixes demonstrate common patterns: - Using `sync.Once` for thread-safe lazy initialization - Using comma-ok idiom for safe type assertions: `if val, ok := x.(Type); ok { ... }` - Adding proper nil checks and defensive programming +- Registering new database engines following the established pattern --- -**Last Updated:** 2025-10-21 +**Last Updated:** 2025-11-19 **Maintainer:** Claude Code diff --git a/Makefile b/Makefile index b8745e57dc..78dfb4cea6 100644 --- a/Makefile +++ b/Makefile @@ -10,7 +10,7 @@ test: go test ./... test-managed: - MYSQL_SERVER_URI="invalid" POSTGRESQL_SERVER_URI="postgres://postgres:mysecretpassword@localhost:5432/postgres" go test -v ./... + MYSQL_SERVER_URI="invalid" POSTGRESQL_SERVER_URI="postgres://postgres:mysecretpassword@localhost:5432/postgres" CLICKHOUSE_SERVER_URI="localhost:9000" go test ./... vet: go vet ./... diff --git a/docker-compose.yml b/docker-compose.yml index f318d1ed93..b0cbdcde34 100644 --- a/docker-compose.yml +++ b/docker-compose.yml @@ -19,3 +19,10 @@ services: POSTGRES_DB: postgres POSTGRES_PASSWORD: mysecretpassword POSTGRES_USER: postgres + + clickhouse: + image: "clickhouse:lts" + ports: + - "9000:9000" + - "8123:8123" + restart: always diff --git a/docs/index.rst b/docs/index.rst index f914f3ec41..06964d1cbc 100644 --- a/docs/index.rst +++ b/docs/index.rst @@ -35,6 +35,7 @@ code ever again. tutorials/getting-started-mysql.md tutorials/getting-started-postgresql.md tutorials/getting-started-sqlite.md + tutorials/getting-started-clickhouse.md .. toctree:: :maxdepth: 2 diff --git a/docs/reference/config.md b/docs/reference/config.md index ff8bcd0890..c61c4e910e 100644 --- a/docs/reference/config.md +++ b/docs/reference/config.md @@ -37,7 +37,7 @@ Each mapping in the `sql` collection has the following keys: - `name`: - An human-friendly identifier for this query set. Optional. - `engine`: - - One of `postgresql`, `mysql` or `sqlite`. + - One of `postgresql`, `mysql`, `sqlite` or `clickhouse`. - `schema`: - Directory of SQL migrations or path to single SQL file; or a list of paths. - `queries`: @@ -134,7 +134,8 @@ The `gen` mapping supports the following keys: - `out`: - Output directory for generated code. - `sql_package`: - - Either `pgx/v4`, `pgx/v5` or `database/sql`. Defaults to `database/sql`. + - Either `pgx/v4`, `pgx/v5`, `database/sql` or `clickhouse/v2`. Defaults to `database/sql`. + - For ClickHouse, use `clickhouse/v2` for the native driver or omit for `database/sql` compatibility. - `sql_driver`: - Either `github.com/jackc/pgx/v4`, `github.com/jackc/pgx/v5`, `github.com/lib/pq` or `github.com/go-sql-driver/mysql`. No defaults. Required if query annotation `:copyfrom` is used. - `emit_db_tags`: @@ -158,7 +159,7 @@ The `gen` mapping supports the following keys: - `emit_methods_with_db_argument`: - If true, generated methods will accept a DBTX argument instead of storing a DBTX on the `*Queries` struct. Defaults to `false`. - `emit_pointers_for_null_types`: - - If true, generated types for nullable columns are emitted as pointers (ie. `*string`) instead of `database/sql` null types (ie. `NullString`). Currently only supported for PostgreSQL if `sql_package` is `pgx/v4` or `pgx/v5`, and for SQLite. Defaults to `false`. + - If true, generated types for nullable columns are emitted as pointers (ie. `*string`) instead of `database/sql` null types (ie. `NullString`). Currently only supported for PostgreSQL if `sql_package` is `pgx/v4` or `pgx/v5`, SQLite, and ClickHouse if `sql_package` is `clickhouse/v2`. Defaults to `false`. - `emit_enum_valid_method`: - If true, generate a Valid method on enum types, indicating whether a string is a valid enum value. diff --git a/docs/reference/datatypes.md b/docs/reference/datatypes.md index 14ceb42a3f..51efd172f4 100644 --- a/docs/reference/datatypes.md +++ b/docs/reference/datatypes.md @@ -8,8 +8,7 @@ If you're unsatisfied with the default, you can override any type using the ## Arrays -PostgreSQL [arrays](https://www.postgresql.org/docs/current/arrays.html) are -materialized as Go slices. +PostgreSQL [arrays](https://www.postgresql.org/docs/current/arrays.html) are materialized as Go slices. ```sql CREATE TABLE places ( @@ -27,6 +26,24 @@ type Place struct { } ``` +ClickHouse [array types](https://clickhouse.com/docs/en/sql-reference/data-types/array) are similarly mapped to Go slices: + +```sql +CREATE TABLE data ( + tags Array(String), + ids Array(UInt32) +); +``` + +```go +package db + +type Data struct { + Tags []string + IDs []uint32 +} +``` + ## Dates and times All date and time types are returned as `time.Time` structs. For @@ -60,6 +77,28 @@ type Author struct { } ``` +ClickHouse `DateTime` and `Date` types are also mapped to `time.Time`: + +```sql +CREATE TABLE events ( + created_at DateTime, + event_date Date +); +``` + +```go +package db + +import ( + "time" +) + +type Event struct { + CreatedAt time.Time + EventDate time.Time +} +``` + ## Enums PostgreSQL [enums](https://www.postgresql.org/docs/current/datatype-enum.html) are @@ -120,6 +159,46 @@ type Author struct { } ``` +ClickHouse uses `Nullable(T)` for nullable columns. When using the native `clickhouse/v2` +driver with `emit_pointers_for_null_types: true`, nullable fields are represented as +pointers. With `database/sql`, they use the standard `sql.Null*` types: + +```sql +CREATE TABLE articles ( + id UInt64, + title String, + bio Nullable(String) +); +``` + +With `clickhouse/v2` and `emit_pointers_for_null_types: true`: + +```go +package db + +type Article struct { + ID uint64 + Title string + Bio *string +} +``` + +With `database/sql`: + +```go +package db + +import ( + "database/sql" +) + +type Article struct { + ID uint64 + Title string + Bio sql.NullString +} +``` + ## UUIDs The Go standard library does not come with a `uuid` package. For UUID support, diff --git a/docs/reference/language-support.rst b/docs/reference/language-support.rst index 057a5ef65f..c619c9d83d 100644 --- a/docs/reference/language-support.rst +++ b/docs/reference/language-support.rst @@ -1,15 +1,15 @@ Database and language support ############################# -========== ======================= ============ ============ =============== -Language Plugin MySQL PostgreSQL SQLite -========== ======================= ============ ============ =============== -Go (built-in) Stable Stable Beta -Go `sqlc-gen-go`_ Stable Stable Beta -Kotlin `sqlc-gen-kotlin`_ Beta Beta Not implemented -Python `sqlc-gen-python`_ Beta Beta Not implemented -TypeScript `sqlc-gen-typescript`_ Beta Beta Not implemented -========== ======================= ============ ============ =============== +========== ======================= ============ ============ =============== =============== +Language Plugin MySQL PostgreSQL SQLite ClickHouse +========== ======================= ============ ============ =============== =============== +Go (built-in) Stable Stable Beta Beta +Go `sqlc-gen-go`_ Stable Stable Beta Beta +Kotlin `sqlc-gen-kotlin`_ Beta Beta Not implemented Not implemented +Python `sqlc-gen-python`_ Beta Beta Not implemented Not implemented +TypeScript `sqlc-gen-typescript`_ Beta Beta Not implemented Not implemented +========== ======================= ============ ============ =============== =============== Community language support ************************** diff --git a/docs/tutorials/getting-started-clickhouse.md b/docs/tutorials/getting-started-clickhouse.md new file mode 100644 index 0000000000..93c78c3f9a --- /dev/null +++ b/docs/tutorials/getting-started-clickhouse.md @@ -0,0 +1,184 @@ +# Getting started with ClickHouse + +This tutorial assumes that the latest version of sqlc is +[installed](../overview/install.md) and ready to use. + +We'll generate Go code here, but other +[language plugins](../reference/language-support.rst) are available. You'll +naturally need the Go toolchain if you want to build and run a program with the +code sqlc generates, but sqlc itself has no dependencies. + +## Setting up + +Create a new directory called `sqlc-tutorial` and open it up. + +Initialize a new Go module named `tutorial.sqlc.dev/app`: + +```shell +go mod init tutorial.sqlc.dev/app +``` + +sqlc looks for either a `sqlc.(yaml|yml)` or `sqlc.json` file in the current +directory. In our new directory, create a file named `sqlc.yaml` with the +following contents: + +```yaml +version: "2" +sql: + - engine: "clickhouse" + queries: "query.sql" + schema: "schema.sql" + gen: + go: + package: "tutorial" + out: "tutorial" + sql_package: "clickhouse/v2" +``` + +## Schema and queries + +sqlc needs to know your database schema and queries in order to generate code. +In the same directory, create a file named `schema.sql` with the following +content: + +```sql +CREATE TABLE authors ( + id UInt64, + name String, + bio String +) ENGINE = Memory; +``` + +Next, create a `query.sql` file with the following four queries: + +```sql +-- name: GetAuthor :one +SELECT * FROM authors +WHERE id = ? LIMIT 1; + +-- name: ListAuthors :many +SELECT * FROM authors +ORDER BY name; + +-- name: CreateAuthor :exec +INSERT INTO authors ( + id, name, bio +) VALUES ( + ?, ?, ? +); + +-- name: DeleteAuthor :exec +DELETE FROM authors +WHERE id = ?; +``` + +## Generating code + +You are now ready to generate code. You shouldn't see any output when you run +the `generate` subcommand, unless something goes wrong: + +```shell +sqlc generate +``` + +You should now have a `tutorial` subdirectory with three files containing Go +source code. These files comprise a Go package named `tutorial`: + +``` +├── go.mod +├── query.sql +├── schema.sql +├── sqlc.yaml +└── tutorial + ├── db.go + ├── models.go + └── query.sql.go +``` + +## Using generated code + +You can use your newly-generated `tutorial` package from any Go program. +Create a file named `tutorial.go` and add the following contents: + +```go +package main + +import ( + "context" + "log" + + "github.com/ClickHouse/clickhouse-go/v2" + + "tutorial.sqlc.dev/app/tutorial" +) + +func run() error { + ctx := context.Background() + + conn, err := clickhouse.Open(&clickhouse.Options{ + Addr: []string{"localhost:9000"}, + Auth: clickhouse.Auth{ + Database: "default", + Username: "default", + Password: "", + }, + }) + if err != nil { + return err + } + defer conn.Close() + + queries := tutorial.New(conn) + + // list all authors + authors, err := queries.ListAuthors(ctx) + if err != nil { + return err + } + log.Println(authors) + + // create an author + err = queries.CreateAuthor(ctx, tutorial.CreateAuthorParams{ + ID: 1, + Name: "Brian Kernighan", + Bio: "Co-author of The C Programming Language and The Go Programming Language", + }) + if err != nil { + return err + } + + // get the author we just inserted + fetchedAuthor, err := queries.GetAuthor(ctx, 1) + if err != nil { + return err + } + log.Println(fetchedAuthor) + + return nil +} + +func main() { + if err := run(); err != nil { + log.Fatal(err) + } +} +``` + +Before this code will compile you'll need to fetch the relevant ClickHouse driver: + +```shell +go get github.com/ClickHouse/clickhouse-go/v2 +go build ./... +``` + +The program should compile without errors. To make that possible, sqlc generates +readable, **idiomatic** Go code that you otherwise would've had to write +yourself. Take a look in `tutorial/query.sql.go`. + +Of course for this program to run successfully you'll need to compile after +replacing the database connection parameters in the call to `clickhouse.Open()` +with the correct parameters for your database. And your database must have the +`authors` table as defined in `schema.sql`. + +You should now have a working program using sqlc's generated Go source code, +and hopefully can see how you'd use sqlc in your own real-world applications. diff --git a/examples/clickhouse/README.md b/examples/clickhouse/README.md new file mode 100644 index 0000000000..84472899ad --- /dev/null +++ b/examples/clickhouse/README.md @@ -0,0 +1,146 @@ +# ClickHouse Example + +This example demonstrates using sqlc with ClickHouse for type-safe SQL query compilation and code generation. + +## Driver Support + +sqlc supports two modes for ClickHouse: + +1. **Native Driver** (`sql_package: "clickhouse/v2"`) - Uses the official ClickHouse Go driver with native protocol +2. **Database/SQL** (default) - Uses the standard library `database/sql` package + +This example uses the **native driver** for better performance and type support. See [USAGE.md](./USAGE.md) for detailed documentation on both modes. + +## Quick Start + +First, ensure you have sqlc installed: + +```bash +go install github.com/sqlc-dev/sqlc/cmd/sqlc@latest +``` + +Then, from this directory, run: + +```bash +sqlc generate +``` + +This will generate Go code in the `gen/` directory based on the schema and queries. + +## Files + +- `schema.sql` - Table definitions for the example +- `queries.sql` - Named queries that sqlc will generate code for +- `sqlc.yaml` - Configuration file for sqlc +- `gen/` - Generated Go code (auto-generated by sqlc) + +## Schema + +The example schema includes: + +- `users` table - User information +- `posts` table - Posts created by users +- `comments` table - Comments on posts + +## Queries + +The example queries include: + +**Positional Parameters:** +- `GetUserByID` - Fetch a single user by ID +- `ListUsers` - List users with limit +- `InsertUser` - Insert a new user + +**Named Parameters (@name syntax):** +- `GetUserByIDNamed` - Fetch user using named parameter +- `ListUsersByStatusNamed` - List users with multiple named parameters +- `GetUserPostsForUser` - Get posts by user ID + +**Named Parameters (sqlc.arg() syntax):** +- `GetUserByEmail` - Fetch user by email +- `InsertUserNamed` - Insert with named parameters +- `GetUserWithPosts` - Get user with all their posts using JOIN + +**Advanced Features:** +- `InsertPost` - Insert post +- `GetCommentsForPost` - Get comments with ordering +- `GetPostsByOptionalStatus` - Nullable parameter handling with `sqlc.narg()` + +All queries demonstrate different parameter syntaxes and SQL features supported by ClickHouse in sqlc. + +## Parameter Syntax Support + +This example shows all three ways to use parameters with ClickHouse in sqlc: + +### 1. Positional Parameters (?) +```sql +SELECT * FROM users WHERE id = ?; +``` +Generated: `func (q *Queries) GetUserByID(ctx context.Context, dollar_1 interface{}) ...` + +### 2. Named Parameters (@name) +```sql +SELECT * FROM users WHERE id = @user_id AND status = @status; +``` +Generated: `func (q *Queries) GetUserByIDNamed(ctx context.Context, arg GetUserByIDNamedParams) ...` + +With struct: +```go +type GetUserByIDNamedParams struct { + UserID int32 + Status string +} +``` + +### 3. Function-Style Named Parameters +```sql +SELECT * FROM users WHERE email = sqlc.arg('email'); +SELECT * FROM users WHERE (sqlc.narg('status') IS NULL OR status = sqlc.narg('status')); +SELECT * FROM users WHERE id IN sqlc.slice('ids'); +``` + +**Recommendation:** Use named parameters (`@name` or `sqlc.arg()`) for better code readability and maintenance. + +## ClickHouse-Specific Features + +This example demonstrates several ClickHouse-specific SQL features: + +- **Table Engines**: Uses MergeTree family of table engines +- **ORDER BY**: Defines sort order for tables +- **Partitioning**: Tables are partitioned by primary key +- **Comments**: SQL-style (`--`) and C-style (`/* */`) comments +- **Named Parameters**: All three parameter syntaxes shown above + +## Type Resolution + +### Table Columns + +sqlc now properly resolves ClickHouse table column types to Go types: + +- `UInt32` → `uint32` (nullable: `sql.NullInt64`) +- `String` → `string` (nullable: `sql.NullString`) +- `DateTime` → `time.Time` (nullable: `sql.NullTime`) +- Other types are mapped following Go's `database/sql` conventions + +Generated table models include proper type information in struct fields. + +### Query Columns + +Query result columns are generated as `Column1`, `Column2`, etc. with `interface{}` types. This is a known limitation - proper column type resolution for SELECT queries requires either: + +1. Database-backed analysis with a ClickHouse connection +2. Complex semantic analysis of SELECT expressions + +To enable query column resolution in the future, you can: + +1. Run ClickHouse locally +2. Configure the analyzer in your `sqlc.yaml` +3. sqlc will then use `DESCRIBE` queries to resolve result column types + +## Notes + +- ClickHouse uses backticks for quoting identifiers +- ClickHouse supports `UInt32` and other specialized numeric types +- The `DateTime` type is used for timestamp columns +- MergeTree tables require an `ORDER BY` clause +- Columns are nullable by default - use database constraints if needed diff --git a/examples/clickhouse/USAGE.md b/examples/clickhouse/USAGE.md new file mode 100644 index 0000000000..4675b600f6 --- /dev/null +++ b/examples/clickhouse/USAGE.md @@ -0,0 +1,207 @@ +# ClickHouse Driver Usage + +The ClickHouse example demonstrates how to use sqlc with both the native ClickHouse driver and the standard `database/sql` package. + +## Driver Options + +### Native Driver (Recommended) + +The native `github.com/ClickHouse/clickhouse-go/v2` driver provides better performance and type support. + +**Configuration (`sqlc.yaml`):** +```yaml +version: "2" +sql: + - engine: "clickhouse" + queries: "queries.sql" + schema: "schema.sql" + gen: + go: + out: "gen" + package: "db" + sql_package: "clickhouse/v2" # Use native driver + emit_pointers_for_null_types: true # Use *T for nullable fields +``` + +**Usage:** +```go +package main + +import ( + "context" + "fmt" + "log" + + "github.com/ClickHouse/clickhouse-go/v2" + "your-project/gen" +) + +func main() { + conn, err := clickhouse.Open(&clickhouse.Options{ + Addr: []string{"localhost:9000"}, + Auth: clickhouse.Auth{ + Database: "default", + Username: "default", + Password: "", + }, + }) + if err != nil { + log.Fatal(err) + } + defer conn.Close() + + queries := db.New(conn) + + // Use the generated methods + ctx := context.Background() + user, err := queries.GetUser(ctx, 1) + if err != nil { + log.Fatal(err) + } + + fmt.Printf("User: %s (%s)\n", *user.Name, *user.Email) +} +``` + +**Generated Code:** +```go +// db.go +type DBTX interface { + Exec(ctx context.Context, query string, args ...any) error + Query(ctx context.Context, query string, args ...any) (driver.Rows, error) + QueryRow(ctx context.Context, query string, args ...any) driver.Row +} + +// models.go +type SqlcExampleUser struct { + ID *uint32 // Pointer type for nullable field + Name *string + Email *string + CreatedAt *time.Time +} +``` + +### Database/SQL (Standard Library) + +Use the standard `database/sql` package for compatibility. + +**Configuration (`sqlc.yaml`):** +```yaml +version: "2" +sql: + - engine: "clickhouse" + queries: "queries.sql" + schema: "schema.sql" + gen: + go: + out: "gen" + package: "db" + # sql_package defaults to "database/sql" when not specified +``` + +**Usage:** +```go +package main + +import ( + "context" + "database/sql" + "fmt" + "log" + + _ "github.com/ClickHouse/clickhouse-go/v2" + "your-project/gen" +) + +func main() { + db, err := sql.Open("clickhouse", "clickhouse://localhost:9000/default") + if err != nil { + log.Fatal(err) + } + defer db.Close() + + queries := db.New(db) + + // Use the generated methods + ctx := context.Background() + user, err := queries.GetUser(ctx, 1) + if err != nil { + log.Fatal(err) + } + + fmt.Printf("User: %s (%s)\n", user.Name.String, user.Email.String) +} +``` + +**Generated Code:** +```go +// db.go +type DBTX interface { + ExecContext(context.Context, string, ...interface{}) (sql.Result, error) + PrepareContext(context.Context, string) (*sql.Stmt, error) + QueryContext(context.Context, string, ...interface{}) (*sql.Rows, error) + QueryRowContext(context.Context, string, ...interface{}) *sql.Row +} + +// models.go +type SqlcExampleUser struct { + ID sql.NullInt64 // sql.Null* types for nullable fields + Name sql.NullString + Email sql.NullString + CreatedAt sql.NullTime +} +``` + +## Key Differences + +| Feature | Native Driver (`clickhouse/v2`) | Database/SQL | +|---------|--------------------------------|--------------| +| **Import** | `github.com/ClickHouse/clickhouse-go/v2` | `database/sql` | +| **Connection** | `clickhouse.Open()` | `sql.Open("clickhouse", dsn)` | +| **Method Signatures** | `Query(ctx, query, args...)` | `QueryContext(ctx, query, args...)` | +| **Null Types** | `*string`, `*int32` (with `emit_pointers_for_null_types`) | `sql.NullString`, `sql.NullInt32` | +| **Performance** | Better (native protocol) | Standard (uses driver internally) | +| **Type Safety** | Better ClickHouse type mapping | Generic sql.Null* types | + +## Recommendations + +- **Use native driver** (`clickhouse/v2`) for new projects - better performance and type support +- **Enable** `emit_pointers_for_null_types: true` for cleaner nullable field handling +- **Use database/sql** only if you need compatibility with generic SQL tooling + +## Example Schema + +```sql +CREATE TABLE IF NOT EXISTS sqlc_example.users ( + id UInt32, + name String, + email String, + created_at DateTime +) ENGINE = MergeTree() +ORDER BY id; +``` + +## Example Query + +```sql +-- name: GetUser :one +SELECT id, name, email, created_at +FROM sqlc_example.users +WHERE id = ?; + +-- name: CreateUser :exec +INSERT INTO sqlc_example.users (id, name, email, created_at) +VALUES (?, ?, ?, ?); +``` + +## Testing + +The generated code can be tested with the ClickHouse server: + +```bash +# Start ClickHouse (using Docker) +docker run -d --name clickhouse -p 9000:9000 clickhouse/clickhouse-server + +# Run your application +go run main.go +``` diff --git a/examples/clickhouse/go.mod b/examples/clickhouse/go.mod new file mode 100644 index 0000000000..d291c4336e --- /dev/null +++ b/examples/clickhouse/go.mod @@ -0,0 +1,21 @@ +module github.com/example/clickhouse + +go 1.25.4 + +require github.com/ClickHouse/clickhouse-go/v2 v2.41.0 + +require ( + github.com/ClickHouse/ch-go v0.69.0 // indirect + github.com/go-faster/city v1.0.1 // indirect + github.com/go-faster/errors v0.7.1 // indirect + github.com/google/uuid v1.6.0 // indirect + github.com/klauspost/compress v1.18.0 // indirect + github.com/paulmach/orb v0.12.0 // indirect + github.com/pierrec/lz4/v4 v4.1.22 // indirect + github.com/segmentio/asm v1.2.1 // indirect + github.com/shopspring/decimal v1.4.0 // indirect + go.opentelemetry.io/otel v1.38.0 // indirect + go.opentelemetry.io/otel/trace v1.38.0 // indirect + go.yaml.in/yaml/v3 v3.0.4 // indirect + golang.org/x/sys v0.38.0 // indirect +) diff --git a/examples/clickhouse/go.sum b/examples/clickhouse/go.sum new file mode 100644 index 0000000000..4fe3777fb2 --- /dev/null +++ b/examples/clickhouse/go.sum @@ -0,0 +1,106 @@ +github.com/ClickHouse/ch-go v0.69.0 h1:nO0OJkpxOlN/eaXFj0KzjTz5p7vwP1/y3GN4qc5z/iM= +github.com/ClickHouse/ch-go v0.69.0/go.mod h1:9XeZpSAT4S0kVjOpaJ5186b7PY/NH/hhF8R6u0WIjwg= +github.com/ClickHouse/clickhouse-go/v2 v2.41.0 h1:JbLKMXLEkW0NMalMgI+GYb6FVZtpaMVEzQa/HC1ZMRE= +github.com/ClickHouse/clickhouse-go/v2 v2.41.0/go.mod h1:/RoTHh4aDA4FOCIQggwsiOwO7Zq1+HxQ0inef0Au/7k= +github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= 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name: GetUserByID :one +SELECT id, name, email, created_at +FROM sqlc_example.users +WHERE id = ?; + +-- name: ListUsers :many +SELECT id, name, email, created_at +FROM sqlc_example.users +ORDER BY created_at DESC +LIMIT ?; + +-- name: InsertUser :exec +INSERT INTO sqlc_example.users (id, name, email, created_at) +VALUES (?, ?, ?, ?); + +-- Named parameter examples using sqlc.arg() function +-- name: GetUserByEmail :one +SELECT id, name, email, created_at +FROM sqlc_example.users +WHERE email = sqlc.arg('email'); + +-- name: InsertUserNamed :exec +INSERT INTO sqlc_example.users (id, name, email, created_at) +VALUES (sqlc.arg('id'), sqlc.arg('name'), sqlc.arg('email'), sqlc.arg('created_at')); + +-- name: GetUserPostsForUser :many +SELECT p.id, p.user_id, p.title, p.content, p.created_at +FROM sqlc_example.posts p +WHERE p.user_id = sqlc.arg('user_id') +ORDER BY p.created_at DESC; + +-- name: InsertPost :exec +INSERT INTO sqlc_example.posts (id, user_id, title, content, created_at) +VALUES (sqlc.arg('id'), sqlc.arg('user_id'), sqlc.arg('title'), sqlc.arg('content'), sqlc.arg('created_at')); + +-- name: GetCommentsForPost :many +SELECT id, post_id, user_id, content, created_at +FROM sqlc_example.comments +WHERE post_id = sqlc.arg('post_id') +ORDER BY created_at ASC; + +-- name: InsertComment :exec +INSERT INTO sqlc_example.comments (id, post_id, user_id, content, created_at) +VALUES (?, ?, ?, ?, ?); + +-- name: GetUserWithPosts :many +SELECT u.id, u.name, u.email, u.created_at, p.id as post_id, p.title +FROM sqlc_example.users u +LEFT JOIN sqlc_example.posts p ON u.id = p.user_id +WHERE u.id = sqlc.arg('user_id') +ORDER BY p.created_at DESC; + +-- Named parameter with nullable values using sqlc.narg() +-- name: GetPostsByOptionalStatus :many +SELECT id, user_id, title, status, created_at +FROM sqlc_example.posts +WHERE (sqlc.narg('status') IS NULL OR status = sqlc.narg('status')) +ORDER BY created_at DESC; + +-- ClickHouse-specific aggregate functions + +-- name: GetUserAnalytics :many +SELECT + u.id, + u.name, + COUNT(*) as total_posts, + uniqExact(p.id) as unique_posts, + countIf(p.created_at >= toDate(now()) - 30) as posts_last_30_days, + argMax(p.title, p.created_at) as latest_post_title, + argMaxIf(p.title, p.created_at, p.created_at >= toDate(now()) - 30) as latest_post_in_30_days +FROM sqlc_example.users u +LEFT JOIN sqlc_example.posts p ON u.id = p.user_id +GROUP BY u.id, u.name +HAVING COUNT(*) > 0 +ORDER BY total_posts DESC; + +-- name: GetCommentAnalytics :many +SELECT + p.id as post_id, + p.title, + COUNT(*) as total_comments, + uniqExact(c.user_id) as unique_commenters, + countIf(c.created_at >= toDate(now()) - 7) as comments_last_week, + argMin(c.created_at, c.id) as first_comment_time, + argMax(c.created_at, c.id) as last_comment_time +FROM sqlc_example.posts p +LEFT JOIN sqlc_example.comments c ON p.id = c.post_id +WHERE p.user_id = sqlc.arg('user_id') +GROUP BY p.id, p.title +ORDER BY total_comments DESC; + +-- Statistical aggregate functions + +-- name: GetMetricsStatistics :many +SELECT + category, + COUNT(*) as count, + varSamp(value) as variance_sample, + varPop(value) as variance_population, + stddevSamp(value) as stddev_sample, + stddevPop(value) as stddev_population, + corr(value_x, value_y) as correlation +FROM sqlc_example.metrics +WHERE timestamp >= sqlc.arg('start_time') AND timestamp <= sqlc.arg('end_time') +GROUP BY category +ORDER BY count DESC; + +-- Conditional aggregate variants + +-- name: GetOrderMetrics :many +SELECT + status, + COUNT(*) as total_orders, + minIf(amount, amount > 0) as min_positive_amount, + maxIf(amount, amount > 0) as max_positive_amount, + sumIf(amount, status = 'completed') as completed_revenue, + avgIf(rating, rating IS NOT NULL) as avg_valid_rating +FROM sqlc_example.order_metrics +WHERE created_at >= sqlc.arg('start_date') +GROUP BY status +ORDER BY total_orders DESC; + +-- IN operator with multiple conditions + +-- name: FilterUsersByIDAndStatus :many +SELECT id, name, email, status, created_at +FROM sqlc_example.users +WHERE id IN (sqlc.slice('user_ids')) +AND status IN ('active', 'pending') +ORDER BY created_at DESC; + +-- ORDER BY with WITH FILL for time series + +-- name: GetTimeSeriesWithFill :many +SELECT date, metric_value +FROM sqlc_example.timeseries +WHERE date >= sqlc.arg('start_date') AND date <= sqlc.arg('end_date') +ORDER BY date WITH FILL FROM sqlc.arg('start_date') TO sqlc.arg('end_date'); + +-- Type casting examples + +-- name: GetCastedValues :many +SELECT + id::String as id_text, + amount::Float32 as amount_float, + created_at::Date as date_only, + status::String as status_text +FROM sqlc_example.events +WHERE created_at::Date >= sqlc.arg('date_filter'); + +-- ARRAY JOIN examples + +-- name: UnfoldUserTags :many +SELECT + u.id as user_id, + u.name as user_name, + tag +FROM sqlc_example.users_with_tags u +ARRAY JOIN u.tags AS tag +WHERE u.id = sqlc.arg('user_id') +ORDER BY tag; + +-- name: UnfoldEventProperties :many +SELECT + e.event_id, + e.event_name, + e.timestamp, + prop_key, + prop_value +FROM sqlc_example.events_with_properties e +ARRAY JOIN e.properties.keys AS prop_key, e.properties.values AS prop_value +WHERE e.timestamp >= sqlc.arg('start_time') +ORDER BY e.timestamp DESC; + +-- name: UnfoldNestedData :many +SELECT + record_id, + nested_value +FROM sqlc_example.nested_table +ARRAY JOIN nested_array AS nested_value +WHERE record_id IN (sqlc.slice('record_ids')); + +-- name: AnalyzeArrayElements :many +SELECT + product_id, + arrayJoin(categories) AS category, + COUNT(*) OVER (PARTITION BY category) as category_count +FROM sqlc_example.products +WHERE product_id = ? +GROUP BY product_id, category; + +-- name: ExtractMetadataFromJSON :many +SELECT + id, + arrayJoin(JSONExtract(json_value, 'Array(String)')) as metadata_value +FROM sqlc_example.events; + +-- name: GetConfigData :one +SELECT id, settings, metrics, tags, created_at +FROM sqlc_example.config_data +WHERE id = ?; + +-- name: GetConfigSettings :many +SELECT id, settings, created_at +FROM sqlc_example.config_data +WHERE id > sqlc.arg('min_id') +ORDER BY id; + +-- name: InsertConfigData :exec +INSERT INTO sqlc_example.config_data (id, settings, metrics, tags, created_at) +VALUES (?, ?, ?, ?, ?); + +-- IP address type examples + +-- name: GetNetworkLogBySourceIP :one +SELECT id, source_ip, dest_ip, source_ipv6, dest_ipv6, timestamp, bytes_sent +FROM sqlc_example.network_logs +WHERE source_ip = sqlc.arg('source_ip'); + +-- name: GetNetworkLogsByDestIP :many +SELECT id, source_ip, dest_ip, timestamp, bytes_sent +FROM sqlc_example.network_logs +WHERE dest_ip = sqlc.arg('dest_ip') +ORDER BY timestamp DESC; + +-- name: GetIPv6Connections :many +SELECT id, source_ipv6, dest_ipv6, timestamp, bytes_sent +FROM sqlc_example.network_logs +WHERE source_ipv6 IS NOT NULL AND dest_ipv6 IS NOT NULL +ORDER BY timestamp DESC; + +-- name: InsertNetworkLog :exec +INSERT INTO sqlc_example.network_logs (id, source_ip, dest_ip, source_ipv6, dest_ipv6, timestamp, bytes_sent) +VALUES (sqlc.arg('id'), sqlc.arg('source_ip'), sqlc.arg('dest_ip'), sqlc.arg('source_ipv6'), sqlc.arg('dest_ipv6'), sqlc.arg('timestamp'), sqlc.arg('bytes_sent')); + +-- name: FilterByIPRange :many +SELECT id, source_ip, dest_ip, timestamp, bytes_sent +FROM sqlc_example.network_logs +WHERE source_ip >= sqlc.arg('min_ip') AND source_ip <= sqlc.arg('max_ip') +ORDER BY timestamp DESC; + +-- Complex CTE with UNION query (tests UNION inside unnamed subqueries) +-- name: GetPlatformHistory :many +WITH platform_info AS ( + SELECT platform_id, + argMax(platform_name, timestamp) as platform_name, + argMax(region, timestamp) as region + FROM ( + SELECT timestamp, platform_id, platform_name, region + FROM sqlc_example.platform_created_event + + UNION ALL + + SELECT timestamp, platform_id, new_name as platform_name, region + FROM sqlc_example.platform_renamed_event + ) AS platform_events + GROUP BY platform_id +), usage_summary AS ( + SELECT feature_usage.platform_id, feature_id, + COUNT(*) AS update_count, + uniqExact(user_count) AS unique_user_counts, + SUM(usage_count) AS total_usage + FROM sqlc_example.feature_usage + WHERE feature_usage.platform_id = sqlc.arg('platform_id') + GROUP BY feature_usage.platform_id, feature_id + ORDER BY total_usage DESC +) + +SELECT + u.platform_id, + u.feature_id, + u.update_count, + u.unique_user_counts, + u.total_usage, + p.platform_name, + p.region +FROM usage_summary u +LEFT JOIN platform_info p ON u.platform_id = p.platform_id; + +-- LEFT JOIN USING clause test +-- This ensures that USING clause returns only one column (not duplicated) +-- ClickHouse naturally returns a single column for the shared key with USING +-- After sqlc expansion, this should generate: order_id, customer_name, amount, created_at, shipment_id, address, shipped_at +-- NOT: order_id, customer_name, amount, created_at, order_id, shipment_id, address, shipped_at (with order_id duplicated) +-- name: GetOrdersWithShipments :many +SELECT * +FROM sqlc_example.orders +LEFT JOIN sqlc_example.shipments USING (order_id) +ORDER BY created_at DESC; diff --git a/examples/clickhouse/schema.sql b/examples/clickhouse/schema.sql new file mode 100644 index 0000000000..b78c3ad7e7 --- /dev/null +++ b/examples/clickhouse/schema.sql @@ -0,0 +1,208 @@ +-- ClickHouse example schema + +CREATE DATABASE IF NOT EXISTS sqlc_example; + +-- Basic CRUD tables +CREATE TABLE IF NOT EXISTS sqlc_example.users +( + id UInt32, + name String, + email String, + status String, + created_at DateTime +) +ENGINE = MergeTree() +ORDER BY id; + +CREATE TABLE IF NOT EXISTS sqlc_example.posts +( + id UInt32, + user_id UInt32, + title String, + content String, + status Nullable(String), + created_at DateTime +) +ENGINE = MergeTree() +ORDER BY (id, user_id); + +CREATE TABLE IF NOT EXISTS sqlc_example.comments +( + id UInt32, + post_id UInt32, + user_id UInt32, + content String, + created_at DateTime +) +ENGINE = MergeTree() +ORDER BY (id, post_id, user_id); + +-- Tables with array columns for ARRAY JOIN examples +CREATE TABLE IF NOT EXISTS sqlc_example.users_with_tags +( + id UInt32, + name String, + tags Array(String) +) +ENGINE = MergeTree() +ORDER BY id; + +CREATE TABLE IF NOT EXISTS sqlc_example.events_with_properties +( + event_id UInt32, + event_name String, + timestamp DateTime, + properties Nested( + keys String, + values String + ) +) +ENGINE = MergeTree() +ORDER BY event_id; + +CREATE TABLE IF NOT EXISTS sqlc_example.nested_table +( + record_id UInt32, + nested_array Array(String) +) +ENGINE = MergeTree() +ORDER BY record_id; + +CREATE TABLE IF NOT EXISTS sqlc_example.products +( + product_id UInt32, + name String, + categories Array(String) +) +ENGINE = MergeTree() +ORDER BY product_id; + +-- Metrics and analytics tables +CREATE TABLE IF NOT EXISTS sqlc_example.metrics +( + category String, + value Float64, + value_x Float64, + value_y Float64, + timestamp DateTime +) +ENGINE = MergeTree() +ORDER BY timestamp; + + + +CREATE TABLE IF NOT EXISTS sqlc_example.order_metrics +( + status String, + amount Float64, + rating Nullable(Float64), + created_at DateTime +) +ENGINE = MergeTree() +ORDER BY created_at; + +CREATE TABLE IF NOT EXISTS sqlc_example.timeseries +( + date Date, + metric_value Float64 +) +ENGINE = MergeTree() +ORDER BY date; + +CREATE TABLE IF NOT EXISTS sqlc_example.events +( + id UInt32, + amount Float64, + created_at DateTime, + status String, + platform_id Nullable(String), + json_value Nullable(String) +) +ENGINE = MergeTree() +ORDER BY id; + +-- Table with Map type columns +CREATE TABLE IF NOT EXISTS sqlc_example.config_data +( + id UInt32, + settings Map(String, String), + metrics Map(String, Float64), + tags Map(String, Array(String)), + created_at DateTime +) +ENGINE = MergeTree() +ORDER BY id; + +-- Table with IP address columns +CREATE TABLE IF NOT EXISTS sqlc_example.network_logs +( + id UInt32, + source_ip IPv4, + dest_ip IPv4, + source_ipv6 Nullable(IPv6), + dest_ipv6 Nullable(IPv6), + timestamp DateTime, + bytes_sent UInt64 +) +ENGINE = MergeTree() +ORDER BY (timestamp, source_ip); + +-- Event tracking tables for complex UNION/CTE queries +CREATE TABLE IF NOT EXISTS sqlc_example.platform_created_event +( + event_id UInt32, + timestamp DateTime, + platform_id UInt32, + platform_name String, + region String +) +ENGINE = MergeTree() +PARTITION BY toYYYYMM(timestamp) +ORDER BY (timestamp, platform_id); + +CREATE TABLE IF NOT EXISTS sqlc_example.platform_renamed_event +( + event_id UInt32, + timestamp DateTime, + platform_id UInt32, + old_name String, + new_name String, + region String +) +ENGINE = MergeTree() +PARTITION BY toYYYYMM(timestamp) +ORDER BY (timestamp, platform_id); + +CREATE TABLE IF NOT EXISTS sqlc_example.feature_usage +( + event_id UInt32, + timestamp DateTime, + platform_id UInt32, + feature_id String, + user_count UInt32, + usage_count UInt64 +) +ENGINE = MergeTree() +PARTITION BY toYYYYMM(timestamp) +ORDER BY (timestamp, platform_id, feature_id); + +-- Tables for LEFT JOIN USING clause test +CREATE TABLE IF NOT EXISTS sqlc_example.orders +( + order_id UInt32, + customer_name String, + amount Float64, + created_at DateTime +) +ENGINE = MergeTree() +ORDER BY order_id; + +CREATE TABLE IF NOT EXISTS sqlc_example.shipments +( + shipment_id UInt32, + order_id UInt32, + address String, + shipped_at DateTime +) +ENGINE = MergeTree() +ORDER BY (order_id, shipment_id); diff --git a/examples/clickhouse/sqlc.yaml b/examples/clickhouse/sqlc.yaml new file mode 100644 index 0000000000..4edd94910b --- /dev/null +++ b/examples/clickhouse/sqlc.yaml @@ -0,0 +1,13 @@ +version: "2" +sql: + - engine: "clickhouse" + queries: "queries.sql" + schema: "schema.sql" + strict_order_by: false + strict_function_checks: false + gen: + go: + out: "gen" + package: "db" + sql_package: "clickhouse/v2" + emit_pointers_for_null_types: true From cc9759fa29bd969de52173b51df0e629a37d7f36 Mon Sep 17 00:00:00 2001 From: Miguel Eduardo Gil Biraud Date: Sat, 6 Dec 2025 14:54:22 +0000 Subject: [PATCH 09/13] Add ClickHouse example project generated code Generated Go code output from running sqlc generate on the ClickHouse example project: database interface, model types, and query functions (1264 lines of generated code). --- examples/clickhouse/gen/db.go | 31 + examples/clickhouse/gen/models.go | 146 +++ examples/clickhouse/gen/queries.sql.go | 1264 ++++++++++++++++++++++++ 3 files changed, 1441 insertions(+) create mode 100644 examples/clickhouse/gen/db.go create mode 100644 examples/clickhouse/gen/models.go create mode 100644 examples/clickhouse/gen/queries.sql.go diff --git a/examples/clickhouse/gen/db.go b/examples/clickhouse/gen/db.go new file mode 100644 index 0000000000..4a3d37c44d --- /dev/null +++ b/examples/clickhouse/gen/db.go @@ -0,0 +1,31 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +import ( + "context" + + "github.com/ClickHouse/clickhouse-go/v2/lib/driver" +) + +type DBTX interface { + Exec(ctx context.Context, query string, args ...any) error + Query(ctx context.Context, query string, args ...any) (driver.Rows, error) + QueryRow(ctx context.Context, query string, args ...any) driver.Row +} + +func New(db DBTX) *Queries { + return &Queries{db: db} +} + +type Queries struct { + db DBTX +} + +func (q *Queries) WithTx(tx driver.Conn) *Queries { + return &Queries{ + db: tx, + } +} diff --git a/examples/clickhouse/gen/models.go b/examples/clickhouse/gen/models.go new file mode 100644 index 0000000000..39f3b11495 --- /dev/null +++ b/examples/clickhouse/gen/models.go @@ -0,0 +1,146 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +import ( + "net/netip" + "time" +) + +type SqlcExampleComment struct { + ID uint32 + PostID uint32 + UserID uint32 + Content string + CreatedAt time.Time +} + +type SqlcExampleConfigDatum struct { + ID uint32 + Settings map[string]string + Metrics map[string]float64 + Tags map[string][]string + CreatedAt time.Time +} + +type SqlcExampleEvent struct { + ID uint32 + Amount float64 + CreatedAt time.Time + Status string + PlatformID *string + JsonValue *string +} + +type SqlcExampleEventsWithProperty struct { + EventID uint32 + EventName string + Timestamp time.Time + Properties string +} + +type SqlcExampleFeatureUsage struct { + EventID uint32 + Timestamp time.Time + PlatformID uint32 + FeatureID string + UserCount uint32 + UsageCount uint64 +} + +type SqlcExampleMetric struct { + Category string + Value float64 + ValueX float64 + ValueY float64 + Timestamp time.Time +} + +type SqlcExampleNestedTable struct { + RecordID uint32 + NestedArray []string +} + +type SqlcExampleNetworkLog struct { + ID uint32 + SourceIp netip.Addr + DestIp netip.Addr + SourceIpv6 *netip.Addr + DestIpv6 *netip.Addr + Timestamp time.Time + BytesSent uint64 +} + +type SqlcExampleOrder struct { + OrderID uint32 + CustomerName string + Amount float64 + CreatedAt time.Time +} + +type SqlcExampleOrderMetric struct { + Status string + Amount float64 + Rating *float64 + CreatedAt time.Time +} + +type SqlcExamplePlatformCreatedEvent struct { + EventID uint32 + Timestamp time.Time + PlatformID uint32 + PlatformName string + Region string +} + +type SqlcExamplePlatformRenamedEvent struct { + EventID uint32 + Timestamp time.Time + PlatformID uint32 + OldName string + NewName string + Region string +} + +type SqlcExamplePost struct { + ID uint32 + UserID uint32 + Title string + Content string + Status *string + CreatedAt time.Time +} + +type SqlcExampleProduct struct { + ProductID uint32 + Name string + Categories []string +} + +type SqlcExampleShipment struct { + ShipmentID uint32 + OrderID uint32 + Address string + ShippedAt time.Time +} + +type SqlcExampleTimeseries struct { + Date time.Time + MetricValue float64 +} + +type SqlcExampleUser struct { + ID uint32 + Name string + Email string + Status string + CreatedAt time.Time +} + +type SqlcExampleUsersWithTag struct { + ID uint32 + Name string + Tags []string +} diff --git a/examples/clickhouse/gen/queries.sql.go b/examples/clickhouse/gen/queries.sql.go new file mode 100644 index 0000000000..b80be9ccb5 --- /dev/null +++ b/examples/clickhouse/gen/queries.sql.go @@ -0,0 +1,1264 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 +// source: queries.sql + +package db + +import ( + "context" + "net/netip" + "time" +) + +const analyzeArrayElements = `-- name: AnalyzeArrayElements :many +SELECT + product_id, + arrayJoin(categories) AS category, + COUNT(*) OVER (PARTITION BY category) as category_count +FROM sqlc_example.products +WHERE product_id = ? +GROUP BY product_id, category; +` + +type AnalyzeArrayElementsRow struct { + ProductID uint32 + Category string + CategoryCount uint64 +} + +func (q *Queries) AnalyzeArrayElements(ctx context.Context, productID uint32) ([]AnalyzeArrayElementsRow, error) { + rows, err := q.db.Query(ctx, analyzeArrayElements, productID) + if err != nil { + return nil, err + } + defer rows.Close() + var items []AnalyzeArrayElementsRow + for rows.Next() { + var i AnalyzeArrayElementsRow + if err := rows.Scan(&i.ProductID, &i.Category, &i.CategoryCount); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const extractMetadataFromJSON = `-- name: ExtractMetadataFromJSON :many +SELECT + id, + arrayJoin(JSONExtract(json_value, 'Array(String)')) as metadata_value +FROM sqlc_example.events; +` + +type ExtractMetadataFromJSONRow struct { + ID uint32 + MetadataValue string +} + +func (q *Queries) ExtractMetadataFromJSON(ctx context.Context) ([]ExtractMetadataFromJSONRow, error) { + rows, err := q.db.Query(ctx, extractMetadataFromJSON) + if err != nil { + return nil, err + } + defer rows.Close() + var items []ExtractMetadataFromJSONRow + for rows.Next() { + var i ExtractMetadataFromJSONRow + if err := rows.Scan(&i.ID, &i.MetadataValue); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const filterByIPRange = `-- name: FilterByIPRange :many +SELECT id, source_ip, dest_ip, timestamp, bytes_sent +FROM sqlc_example.network_logs +WHERE source_ip >= $1 AND source_ip <= $2 +ORDER BY timestamp DESC; + +` + +type FilterByIPRangeParams struct { + MinIp netip.Addr + MaxIp netip.Addr +} + +type FilterByIPRangeRow struct { + ID uint32 + SourceIp netip.Addr + DestIp netip.Addr + Timestamp time.Time + BytesSent uint64 +} + +// Complex CTE with UNION query (tests UNION inside unnamed subqueries) +func (q *Queries) FilterByIPRange(ctx context.Context, arg FilterByIPRangeParams) ([]FilterByIPRangeRow, error) { + rows, err := q.db.Query(ctx, filterByIPRange, arg.MinIp, arg.MaxIp) + if err != nil { + return nil, err + } + defer rows.Close() + var items []FilterByIPRangeRow + for rows.Next() { + var i FilterByIPRangeRow + if err := rows.Scan( + &i.ID, + &i.SourceIp, + &i.DestIp, + &i.Timestamp, + &i.BytesSent, + ); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const filterUsersByIDAndStatus = `-- name: FilterUsersByIDAndStatus :many +SELECT id, name, email, status, created_at +FROM sqlc_example.users +WHERE id IN ($1) +AND status IN ('active', 'pending') +ORDER BY created_at DESC; + +` + +// ORDER BY with WITH FILL for time series +func (q *Queries) FilterUsersByIDAndStatus(ctx context.Context, userIds []uint32) ([]SqlcExampleUser, error) { + rows, err := q.db.Query(ctx, filterUsersByIDAndStatus, userIds) + if err != nil { + return nil, err + } + defer rows.Close() + var items []SqlcExampleUser + for rows.Next() { + var i SqlcExampleUser + if err := rows.Scan( + &i.ID, + &i.Name, + &i.Email, + &i.Status, + &i.CreatedAt, + ); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getCastedValues = `-- name: GetCastedValues :many +SELECT + id::String as id_text, + amount::Float32 as amount_float, + created_at::Date as date_only, + status::String as status_text +FROM sqlc_example.events +WHERE created_at::Date >= $1; + +` + +type GetCastedValuesRow struct { + IDText string + AmountFloat float32 + DateOnly time.Time + StatusText string +} + +// ARRAY JOIN examples +func (q *Queries) GetCastedValues(ctx context.Context, dateFilter time.Time) ([]GetCastedValuesRow, error) { + rows, err := q.db.Query(ctx, getCastedValues, dateFilter) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetCastedValuesRow + for rows.Next() { + var i GetCastedValuesRow + if err := rows.Scan( + &i.IDText, + &i.AmountFloat, + &i.DateOnly, + &i.StatusText, + ); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getCommentAnalytics = `-- name: GetCommentAnalytics :many +SELECT + p.id as post_id, + p.title, + COUNT(*) as total_comments, + uniqExact(c.user_id) as unique_commenters, + countIf(c.created_at >= toDate(now()) - 7) as comments_last_week, + argMin(c.created_at, c.id) as first_comment_time, + argMax(c.created_at, c.id) as last_comment_time +FROM sqlc_example.posts p +LEFT JOIN sqlc_example.comments c ON p.id = c.post_id +WHERE p.user_id = $1 +GROUP BY p.id, p.title +ORDER BY total_comments DESC; + +` + +type GetCommentAnalyticsRow struct { + PostID uint32 + Title string + TotalComments uint64 + UniqueCommenters uint64 + CommentsLastWeek uint64 + FirstCommentTime time.Time + LastCommentTime time.Time +} + +// Statistical aggregate functions +func (q *Queries) GetCommentAnalytics(ctx context.Context, userID uint32) ([]GetCommentAnalyticsRow, error) { + rows, err := q.db.Query(ctx, getCommentAnalytics, userID) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetCommentAnalyticsRow + for rows.Next() { + var i GetCommentAnalyticsRow + if err := rows.Scan( + &i.PostID, + &i.Title, + &i.TotalComments, + &i.UniqueCommenters, + &i.CommentsLastWeek, + &i.FirstCommentTime, + &i.LastCommentTime, + ); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getCommentsForPost = `-- name: GetCommentsForPost :many +SELECT id, post_id, user_id, content, created_at +FROM sqlc_example.comments +WHERE post_id = $1 +ORDER BY created_at ASC; +` + +func (q *Queries) GetCommentsForPost(ctx context.Context, postID uint32) ([]SqlcExampleComment, error) { + rows, err := q.db.Query(ctx, getCommentsForPost, postID) + if err != nil { + return nil, err + } + defer rows.Close() + var items []SqlcExampleComment + for rows.Next() { + var i SqlcExampleComment + if err := rows.Scan( + &i.ID, + &i.PostID, + &i.UserID, + &i.Content, + &i.CreatedAt, + ); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getConfigData = `-- name: GetConfigData :one +SELECT id, settings, metrics, tags, created_at +FROM sqlc_example.config_data +WHERE id = ?; +` + +func (q *Queries) GetConfigData(ctx context.Context, id uint32) (SqlcExampleConfigDatum, error) { + row := q.db.QueryRow(ctx, getConfigData, id) + var i SqlcExampleConfigDatum + err := row.Scan( + &i.ID, + &i.Settings, + &i.Metrics, + &i.Tags, + &i.CreatedAt, + ) + return i, err +} + +const getConfigSettings = `-- name: GetConfigSettings :many +SELECT id, settings, created_at +FROM sqlc_example.config_data +WHERE id > $1 +ORDER BY id; +` + +type GetConfigSettingsRow struct { + ID uint32 + Settings map[string]string + CreatedAt time.Time +} + +func (q *Queries) GetConfigSettings(ctx context.Context, minID uint32) ([]GetConfigSettingsRow, error) { + rows, err := q.db.Query(ctx, getConfigSettings, minID) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetConfigSettingsRow + for rows.Next() { + var i GetConfigSettingsRow + if err := rows.Scan(&i.ID, &i.Settings, &i.CreatedAt); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getIPv6Connections = `-- name: GetIPv6Connections :many +SELECT id, source_ipv6, dest_ipv6, timestamp, bytes_sent +FROM sqlc_example.network_logs +WHERE source_ipv6 IS NOT NULL AND dest_ipv6 IS NOT NULL +ORDER BY timestamp DESC; +` + +type GetIPv6ConnectionsRow struct { + ID uint32 + SourceIpv6 *netip.Addr + DestIpv6 *netip.Addr + Timestamp time.Time + BytesSent uint64 +} + +func (q *Queries) GetIPv6Connections(ctx context.Context) ([]GetIPv6ConnectionsRow, error) { + rows, err := q.db.Query(ctx, getIPv6Connections) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetIPv6ConnectionsRow + for rows.Next() { + var i GetIPv6ConnectionsRow + if err := rows.Scan( + &i.ID, + &i.SourceIpv6, + &i.DestIpv6, + &i.Timestamp, + &i.BytesSent, + ); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getMetricsStatistics = `-- name: GetMetricsStatistics :many +SELECT + category, + COUNT(*) as count, + varSamp(value) as variance_sample, + varPop(value) as variance_population, + stddevSamp(value) as stddev_sample, + stddevPop(value) as stddev_population, + corr(value_x, value_y) as correlation +FROM sqlc_example.metrics +WHERE timestamp >= $1 AND timestamp <= $2 +GROUP BY category +ORDER BY count DESC; + +` + +type GetMetricsStatisticsParams struct { + StartTime time.Time + EndTime time.Time +} + +type GetMetricsStatisticsRow struct { + Category string + Count uint64 + VarianceSample float64 + VariancePopulation float64 + StddevSample float64 + StddevPopulation float64 + Correlation float64 +} + +// Conditional aggregate variants +func (q *Queries) GetMetricsStatistics(ctx context.Context, arg GetMetricsStatisticsParams) ([]GetMetricsStatisticsRow, error) { + rows, err := q.db.Query(ctx, getMetricsStatistics, arg.StartTime, arg.EndTime) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetMetricsStatisticsRow + for rows.Next() { + var i GetMetricsStatisticsRow + if err := rows.Scan( + &i.Category, + &i.Count, + &i.VarianceSample, + &i.VariancePopulation, + &i.StddevSample, + &i.StddevPopulation, + &i.Correlation, + ); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getNetworkLogBySourceIP = `-- name: GetNetworkLogBySourceIP :one +SELECT id, source_ip, dest_ip, source_ipv6, dest_ipv6, timestamp, bytes_sent +FROM sqlc_example.network_logs +WHERE source_ip = $1; +` + +func (q *Queries) GetNetworkLogBySourceIP(ctx context.Context, sourceIp netip.Addr) (SqlcExampleNetworkLog, error) { + row := q.db.QueryRow(ctx, getNetworkLogBySourceIP, sourceIp) + var i SqlcExampleNetworkLog + err := row.Scan( + &i.ID, + &i.SourceIp, + &i.DestIp, + &i.SourceIpv6, + &i.DestIpv6, + &i.Timestamp, + &i.BytesSent, + ) + return i, err +} + +const getNetworkLogsByDestIP = `-- name: GetNetworkLogsByDestIP :many +SELECT id, source_ip, dest_ip, timestamp, bytes_sent +FROM sqlc_example.network_logs +WHERE dest_ip = $1 +ORDER BY timestamp DESC; +` + +type GetNetworkLogsByDestIPRow struct { + ID uint32 + SourceIp netip.Addr + DestIp netip.Addr + Timestamp time.Time + BytesSent uint64 +} + +func (q *Queries) GetNetworkLogsByDestIP(ctx context.Context, destIp netip.Addr) ([]GetNetworkLogsByDestIPRow, error) { + rows, err := q.db.Query(ctx, getNetworkLogsByDestIP, destIp) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetNetworkLogsByDestIPRow + for rows.Next() { + var i GetNetworkLogsByDestIPRow + if err := rows.Scan( + &i.ID, + &i.SourceIp, + &i.DestIp, + &i.Timestamp, + &i.BytesSent, + ); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getOrderMetrics = `-- name: GetOrderMetrics :many +SELECT + status, + COUNT(*) as total_orders, + minIf(amount, amount > 0) as min_positive_amount, + maxIf(amount, amount > 0) as max_positive_amount, + sumIf(amount, status = 'completed') as completed_revenue, + avgIf(rating, rating IS NOT NULL) as avg_valid_rating +FROM sqlc_example.order_metrics +WHERE created_at >= $1 +GROUP BY status +ORDER BY total_orders DESC; + +` + +type GetOrderMetricsRow struct { + Status string + TotalOrders uint64 + MinPositiveAmount float64 + MaxPositiveAmount float64 + CompletedRevenue float64 + AvgValidRating float64 +} + +// IN operator with multiple conditions +func (q *Queries) GetOrderMetrics(ctx context.Context, startDate time.Time) ([]GetOrderMetricsRow, error) { + rows, err := q.db.Query(ctx, getOrderMetrics, startDate) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetOrderMetricsRow + for rows.Next() { + var i GetOrderMetricsRow + if err := rows.Scan( + &i.Status, + &i.TotalOrders, + &i.MinPositiveAmount, + &i.MaxPositiveAmount, + &i.CompletedRevenue, + &i.AvgValidRating, + ); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getOrdersWithShipments = `-- name: GetOrdersWithShipments :many +SELECT order_id, customer_name, amount, created_at, shipment_id, address, shipped_at +FROM sqlc_example.orders +LEFT JOIN sqlc_example.shipments USING (order_id) +ORDER BY created_at DESC; +` + +type GetOrdersWithShipmentsRow struct { + OrderID uint32 + CustomerName string + Amount float64 + CreatedAt time.Time + ShipmentID *uint32 + Address *string + ShippedAt *time.Time +} + +func (q *Queries) GetOrdersWithShipments(ctx context.Context) ([]GetOrdersWithShipmentsRow, error) { + rows, err := q.db.Query(ctx, getOrdersWithShipments) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetOrdersWithShipmentsRow + for rows.Next() { + var i GetOrdersWithShipmentsRow + if err := rows.Scan( + &i.OrderID, + &i.CustomerName, + &i.Amount, + &i.CreatedAt, + &i.ShipmentID, + &i.Address, + &i.ShippedAt, + ); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getPlatformHistory = `-- name: GetPlatformHistory :many +WITH platform_info AS ( + SELECT platform_id, + argMax(platform_name, timestamp) as platform_name, + argMax(region, timestamp) as region + FROM ( + SELECT timestamp, platform_id, platform_name, region + FROM sqlc_example.platform_created_event + + UNION ALL + + SELECT timestamp, platform_id, new_name as platform_name, region + FROM sqlc_example.platform_renamed_event + ) AS platform_events + GROUP BY platform_id +), usage_summary AS ( + SELECT feature_usage.platform_id, feature_id, + COUNT(*) AS update_count, + uniqExact(user_count) AS unique_user_counts, + SUM(usage_count) AS total_usage + FROM sqlc_example.feature_usage + WHERE feature_usage.platform_id = $1 + GROUP BY feature_usage.platform_id, feature_id + ORDER BY total_usage DESC +) + +SELECT + u.platform_id, + u.feature_id, + u.update_count, + u.unique_user_counts, + u.total_usage, + p.platform_name, + p.region +FROM usage_summary u +LEFT JOIN platform_info p ON u.platform_id = p.platform_id; + +` + +type GetPlatformHistoryRow struct { + PlatformID uint32 + FeatureID string + UpdateCount uint64 + UniqueUserCounts uint64 + TotalUsage uint64 + PlatformName *string + Region *string +} + +// LEFT JOIN USING clause test +// This ensures that USING clause returns only one column (not duplicated) +// ClickHouse naturally returns a single column for the shared key with USING +// After sqlc expansion, this should generate: order_id, customer_name, amount, created_at, shipment_id, address, shipped_at +// NOT: order_id, customer_name, amount, created_at, order_id, shipment_id, address, shipped_at (with order_id duplicated) +func (q *Queries) GetPlatformHistory(ctx context.Context, platformID uint32) ([]GetPlatformHistoryRow, error) { + rows, err := q.db.Query(ctx, getPlatformHistory, platformID) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetPlatformHistoryRow + for rows.Next() { + var i GetPlatformHistoryRow + if err := rows.Scan( + &i.PlatformID, + &i.FeatureID, + &i.UpdateCount, + &i.UniqueUserCounts, + &i.TotalUsage, + &i.PlatformName, + &i.Region, + ); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getPostsByOptionalStatus = `-- name: GetPostsByOptionalStatus :many +SELECT id, user_id, title, status, created_at +FROM sqlc_example.posts +WHERE ($1 IS NULL OR status = $1) +ORDER BY created_at DESC; + +` + +type GetPostsByOptionalStatusRow struct { + ID uint32 + UserID uint32 + Title string + Status *string + CreatedAt time.Time +} + +// ClickHouse-specific aggregate functions +func (q *Queries) GetPostsByOptionalStatus(ctx context.Context, status *string) ([]GetPostsByOptionalStatusRow, error) { + rows, err := q.db.Query(ctx, getPostsByOptionalStatus, status) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetPostsByOptionalStatusRow + for rows.Next() { + var i GetPostsByOptionalStatusRow + if err := rows.Scan( + &i.ID, + &i.UserID, + &i.Title, + &i.Status, + &i.CreatedAt, + ); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getTimeSeriesWithFill = `-- name: GetTimeSeriesWithFill :many +SELECT date, metric_value +FROM sqlc_example.timeseries +WHERE date >= $1 AND date <= $2 +ORDER BY date WITH FILL FROM sqlc.arg('start_date') TO sqlc.arg('end_date'); + +` + +type GetTimeSeriesWithFillParams struct { + StartDate time.Time + EndDate time.Time +} + +// Type casting examples +func (q *Queries) GetTimeSeriesWithFill(ctx context.Context, arg GetTimeSeriesWithFillParams) ([]SqlcExampleTimeseries, error) { + rows, err := q.db.Query(ctx, getTimeSeriesWithFill, arg.StartDate, arg.EndDate) + if err != nil { + return nil, err + } + defer rows.Close() + var items []SqlcExampleTimeseries + for rows.Next() { + var i SqlcExampleTimeseries + if err := rows.Scan(&i.Date, &i.MetricValue); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getUserAnalytics = `-- name: GetUserAnalytics :many +SELECT + u.id, + u.name, + COUNT(*) as total_posts, + uniqExact(p.id) as unique_posts, + countIf(p.created_at >= toDate(now()) - 30) as posts_last_30_days, + argMax(p.title, p.created_at) as latest_post_title, + argMaxIf(p.title, p.created_at, p.created_at >= toDate(now()) - 30) as latest_post_in_30_days +FROM sqlc_example.users u +LEFT JOIN sqlc_example.posts p ON u.id = p.user_id +GROUP BY u.id, u.name +HAVING COUNT(*) > 0 +ORDER BY total_posts DESC; +` + +type GetUserAnalyticsRow struct { + ID uint32 + Name string + TotalPosts uint64 + UniquePosts uint64 + PostsLast30Days uint64 + LatestPostTitle string + LatestPostIn30Days string +} + +func (q *Queries) GetUserAnalytics(ctx context.Context) ([]GetUserAnalyticsRow, error) { + rows, err := q.db.Query(ctx, getUserAnalytics) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetUserAnalyticsRow + for rows.Next() { + var i GetUserAnalyticsRow + if err := rows.Scan( + &i.ID, + &i.Name, + &i.TotalPosts, + &i.UniquePosts, + &i.PostsLast30Days, + &i.LatestPostTitle, + &i.LatestPostIn30Days, + ); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getUserByEmail = `-- name: GetUserByEmail :one +SELECT id, name, email, created_at +FROM sqlc_example.users +WHERE email = $1; +` + +type GetUserByEmailRow struct { + ID uint32 + Name string + Email string + CreatedAt time.Time +} + +func (q *Queries) GetUserByEmail(ctx context.Context, email string) (GetUserByEmailRow, error) { + row := q.db.QueryRow(ctx, getUserByEmail, email) + var i GetUserByEmailRow + err := row.Scan( + &i.ID, + &i.Name, + &i.Email, + &i.CreatedAt, + ) + return i, err +} + +const getUserByID = `-- name: GetUserByID :one +SELECT id, name, email, created_at +FROM sqlc_example.users +WHERE id = ?; +` + +type GetUserByIDRow struct { + ID uint32 + Name string + Email string + CreatedAt time.Time +} + +func (q *Queries) GetUserByID(ctx context.Context, id uint32) (GetUserByIDRow, error) { + row := q.db.QueryRow(ctx, getUserByID, id) + var i GetUserByIDRow + err := row.Scan( + &i.ID, + &i.Name, + &i.Email, + &i.CreatedAt, + ) + return i, err +} + +const getUserPostsForUser = `-- name: GetUserPostsForUser :many +SELECT p.id, p.user_id, p.title, p.content, p.created_at +FROM sqlc_example.posts p +WHERE p.user_id = $1 +ORDER BY p.created_at DESC; +` + +type GetUserPostsForUserRow struct { + ID uint32 + UserID uint32 + Title string + Content string + CreatedAt time.Time +} + +func (q *Queries) GetUserPostsForUser(ctx context.Context, userID uint32) ([]GetUserPostsForUserRow, error) { + rows, err := q.db.Query(ctx, getUserPostsForUser, userID) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetUserPostsForUserRow + for rows.Next() { + var i GetUserPostsForUserRow + if err := rows.Scan( + &i.ID, + &i.UserID, + &i.Title, + &i.Content, + &i.CreatedAt, + ); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getUserWithPosts = `-- name: GetUserWithPosts :many +SELECT u.id, u.name, u.email, u.created_at, p.id as post_id, p.title +FROM sqlc_example.users u +LEFT JOIN sqlc_example.posts p ON u.id = p.user_id +WHERE u.id = $1 +ORDER BY p.created_at DESC; + +` + +type GetUserWithPostsRow struct { + ID uint32 + Name string + Email string + CreatedAt time.Time + PostID *uint32 + Title *string +} + +// Named parameter with nullable values using sqlc.narg() +func (q *Queries) GetUserWithPosts(ctx context.Context, userID uint32) ([]GetUserWithPostsRow, error) { + rows, err := q.db.Query(ctx, getUserWithPosts, userID) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetUserWithPostsRow + for rows.Next() { + var i GetUserWithPostsRow + if err := rows.Scan( + &i.ID, + &i.Name, + &i.Email, + &i.CreatedAt, + &i.PostID, + &i.Title, + ); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const insertComment = `-- name: InsertComment :exec +INSERT INTO sqlc_example.comments (id, post_id, user_id, content, created_at) +VALUES (?, ?, ?, ?, ?); +` + +type InsertCommentParams struct { + ID uint32 + PostID uint32 + UserID uint32 + Content string + CreatedAt time.Time +} + +func (q *Queries) InsertComment(ctx context.Context, arg InsertCommentParams) error { + err := q.db.Exec(ctx, insertComment, + arg.ID, + arg.PostID, + arg.UserID, + arg.Content, + arg.CreatedAt, + ) + return err +} + +const insertConfigData = `-- name: InsertConfigData :exec +INSERT INTO sqlc_example.config_data (id, settings, metrics, tags, created_at) +VALUES (?, ?, ?, ?, ?); + +` + +type InsertConfigDataParams struct { + ID uint32 + Settings map[string]string + Metrics map[string]float64 + Tags map[string][]string + CreatedAt time.Time +} + +// IP address type examples +func (q *Queries) InsertConfigData(ctx context.Context, arg InsertConfigDataParams) error { + err := q.db.Exec(ctx, insertConfigData, + arg.ID, + arg.Settings, + arg.Metrics, + arg.Tags, + arg.CreatedAt, + ) + return err +} + +const insertNetworkLog = `-- name: InsertNetworkLog :exec +INSERT INTO sqlc_example.network_logs (id, source_ip, dest_ip, source_ipv6, dest_ipv6, timestamp, bytes_sent) +VALUES ($1, $2, $3, $4, $5, $6, $7); +` + +type InsertNetworkLogParams struct { + ID uint32 + SourceIp netip.Addr + DestIp netip.Addr + SourceIpv6 *netip.Addr + DestIpv6 *netip.Addr + Timestamp time.Time + BytesSent uint64 +} + +func (q *Queries) InsertNetworkLog(ctx context.Context, arg InsertNetworkLogParams) error { + err := q.db.Exec(ctx, insertNetworkLog, + arg.ID, + arg.SourceIp, + arg.DestIp, + arg.SourceIpv6, + arg.DestIpv6, + arg.Timestamp, + arg.BytesSent, + ) + return err +} + +const insertPost = `-- name: InsertPost :exec +INSERT INTO sqlc_example.posts (id, user_id, title, content, created_at) +VALUES ($1, $2, $3, $4, $5); +` + +type InsertPostParams struct { + ID uint32 + UserID uint32 + Title string + Content string + CreatedAt time.Time +} + +func (q *Queries) InsertPost(ctx context.Context, arg InsertPostParams) error { + err := q.db.Exec(ctx, insertPost, + arg.ID, + arg.UserID, + arg.Title, + arg.Content, + arg.CreatedAt, + ) + return err +} + +const insertUser = `-- name: InsertUser :exec +INSERT INTO sqlc_example.users (id, name, email, created_at) +VALUES (?, ?, ?, ?); + +` + +type InsertUserParams struct { + ID uint32 + Name string + Email string + CreatedAt time.Time +} + +// Named parameter examples using sqlc.arg() function +func (q *Queries) InsertUser(ctx context.Context, arg InsertUserParams) error { + err := q.db.Exec(ctx, insertUser, + arg.ID, + arg.Name, + arg.Email, + arg.CreatedAt, + ) + return err +} + +const insertUserNamed = `-- name: InsertUserNamed :exec +INSERT INTO sqlc_example.users (id, name, email, created_at) +VALUES ($1, $2, $3, $4); +` + +type InsertUserNamedParams struct { + ID uint32 + Name string + Email string + CreatedAt time.Time +} + +func (q *Queries) InsertUserNamed(ctx context.Context, arg InsertUserNamedParams) error { + err := q.db.Exec(ctx, insertUserNamed, + arg.ID, + arg.Name, + arg.Email, + arg.CreatedAt, + ) + return err +} + +const listUsers = `-- name: ListUsers :many +SELECT id, name, email, created_at +FROM sqlc_example.users +ORDER BY created_at DESC +LIMIT ?; +` + +type ListUsersRow struct { + ID uint32 + Name string + Email string + CreatedAt time.Time +} + +func (q *Queries) ListUsers(ctx context.Context, limit int64) ([]ListUsersRow, error) { + rows, err := q.db.Query(ctx, listUsers, limit) + if err != nil { + return nil, err + } + defer rows.Close() + var items []ListUsersRow + for rows.Next() { + var i ListUsersRow + if err := rows.Scan( + &i.ID, + &i.Name, + &i.Email, + &i.CreatedAt, + ); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const unfoldEventProperties = `-- name: UnfoldEventProperties :many +SELECT + e.event_id, + e.event_name, + e.timestamp, + prop_key, + prop_value +FROM sqlc_example.events_with_properties e +ARRAY JOIN e.properties.keys AS prop_key, e.properties.values AS prop_value +WHERE e.timestamp >= $1 +ORDER BY e.timestamp DESC; +` + +type UnfoldEventPropertiesRow struct { + EventID uint32 + EventName string + Timestamp time.Time + PropKey string + PropValue string +} + +func (q *Queries) UnfoldEventProperties(ctx context.Context, startTime time.Time) ([]UnfoldEventPropertiesRow, error) { + rows, err := q.db.Query(ctx, unfoldEventProperties, startTime) + if err != nil { + return nil, err + } + defer rows.Close() + var items []UnfoldEventPropertiesRow + for rows.Next() { + var i UnfoldEventPropertiesRow + if err := rows.Scan( + &i.EventID, + &i.EventName, + &i.Timestamp, + &i.PropKey, + &i.PropValue, + ); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const unfoldNestedData = `-- name: UnfoldNestedData :many +SELECT + record_id, + nested_value +FROM sqlc_example.nested_table +ARRAY JOIN nested_array AS nested_value +WHERE record_id IN ($1); +` + +type UnfoldNestedDataRow struct { + RecordID uint32 + NestedValue string +} + +func (q *Queries) UnfoldNestedData(ctx context.Context, recordIds []uint32) ([]UnfoldNestedDataRow, error) { + rows, err := q.db.Query(ctx, unfoldNestedData, recordIds) + if err != nil { + return nil, err + } + defer rows.Close() + var items []UnfoldNestedDataRow + for rows.Next() { + var i UnfoldNestedDataRow + if err := rows.Scan(&i.RecordID, &i.NestedValue); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const unfoldUserTags = `-- name: UnfoldUserTags :many +SELECT + u.id as user_id, + u.name as user_name, + tag +FROM sqlc_example.users_with_tags u +ARRAY JOIN u.tags AS tag +WHERE u.id = $1 +ORDER BY tag; +` + +type UnfoldUserTagsRow struct { + UserID uint32 + UserName string + Tag string +} + +func (q *Queries) UnfoldUserTags(ctx context.Context, userID uint32) ([]UnfoldUserTagsRow, error) { + rows, err := q.db.Query(ctx, unfoldUserTags, userID) + if err != nil { + return nil, err + } + defer rows.Close() + var items []UnfoldUserTagsRow + for rows.Next() { + var i UnfoldUserTagsRow + if err := rows.Scan(&i.UserID, &i.UserName, &i.Tag); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} From cfdb3ff4ccb1da739d9a1f8d93edbfa25ecd9ba5 Mon Sep 17 00:00:00 2001 From: Miguel Eduardo Gil Biraud Date: Sat, 6 Dec 2025 14:54:31 +0000 Subject: [PATCH 10/13] Add end-to-end test for JOIN...USING syntax PostgreSQL test case validating JOIN USING feature works correctly with existing database engines. --- .../join_using_single/postgresql/go/db.go | 31 +++++++++++ .../join_using_single/postgresql/go/models.go | 21 ++++++++ .../postgresql/go/query.sql.go | 54 +++++++++++++++++++ .../testdata/join_using_single/query.sql | 4 ++ .../testdata/join_using_single/schema.sql | 11 ++++ .../testdata/join_using_single/sqlc.json | 12 +++++ 6 files changed, 133 insertions(+) create mode 100644 internal/endtoend/testdata/join_using_single/postgresql/go/db.go create mode 100644 internal/endtoend/testdata/join_using_single/postgresql/go/models.go create mode 100644 internal/endtoend/testdata/join_using_single/postgresql/go/query.sql.go create mode 100644 internal/endtoend/testdata/join_using_single/query.sql create mode 100644 internal/endtoend/testdata/join_using_single/schema.sql create mode 100644 internal/endtoend/testdata/join_using_single/sqlc.json diff --git a/internal/endtoend/testdata/join_using_single/postgresql/go/db.go b/internal/endtoend/testdata/join_using_single/postgresql/go/db.go new file mode 100644 index 0000000000..3b320aa168 --- /dev/null +++ b/internal/endtoend/testdata/join_using_single/postgresql/go/db.go @@ -0,0 +1,31 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package querytest + +import ( + "context" + "database/sql" +) + +type DBTX interface { + ExecContext(context.Context, string, ...interface{}) (sql.Result, error) + PrepareContext(context.Context, string) (*sql.Stmt, error) + QueryContext(context.Context, string, ...interface{}) (*sql.Rows, error) + QueryRowContext(context.Context, string, ...interface{}) *sql.Row +} + +func New(db DBTX) *Queries { + return &Queries{db: db} +} + +type Queries struct { + db DBTX +} + +func (q *Queries) WithTx(tx *sql.Tx) *Queries { + return &Queries{ + db: tx, + } +} diff --git a/internal/endtoend/testdata/join_using_single/postgresql/go/models.go b/internal/endtoend/testdata/join_using_single/postgresql/go/models.go new file mode 100644 index 0000000000..2f4cf01268 --- /dev/null +++ b/internal/endtoend/testdata/join_using_single/postgresql/go/models.go @@ -0,0 +1,21 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package querytest + +import ( + "database/sql" +) + +type Order struct { + OrderID int32 + CustomerName sql.NullString + Amount sql.NullString +} + +type Shipment struct { + ShipmentID int32 + OrderID sql.NullInt32 + Address sql.NullString +} diff --git a/internal/endtoend/testdata/join_using_single/postgresql/go/query.sql.go b/internal/endtoend/testdata/join_using_single/postgresql/go/query.sql.go new file mode 100644 index 0000000000..5ad1ce538a --- /dev/null +++ b/internal/endtoend/testdata/join_using_single/postgresql/go/query.sql.go @@ -0,0 +1,54 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 +// source: query.sql + +package querytest + +import ( + "context" + "database/sql" +) + +const getOrdersWithShipments = `-- name: GetOrdersWithShipments :many +SELECT order_id, customer_name, amount, shipment_id, address +FROM orders +LEFT JOIN shipments USING (order_id) +` + +type GetOrdersWithShipmentsRow struct { + OrderID int32 + CustomerName sql.NullString + Amount sql.NullString + ShipmentID sql.NullInt32 + Address sql.NullString +} + +func (q *Queries) GetOrdersWithShipments(ctx context.Context) ([]GetOrdersWithShipmentsRow, error) { + rows, err := q.db.QueryContext(ctx, getOrdersWithShipments) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetOrdersWithShipmentsRow + for rows.Next() { + var i GetOrdersWithShipmentsRow + if err := rows.Scan( + &i.OrderID, + &i.CustomerName, + &i.Amount, + &i.ShipmentID, + &i.Address, + ); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} diff --git a/internal/endtoend/testdata/join_using_single/query.sql b/internal/endtoend/testdata/join_using_single/query.sql new file mode 100644 index 0000000000..1faeb0de06 --- /dev/null +++ b/internal/endtoend/testdata/join_using_single/query.sql @@ -0,0 +1,4 @@ +-- name: GetOrdersWithShipments :many +SELECT * +FROM orders +LEFT JOIN shipments USING (order_id); diff --git a/internal/endtoend/testdata/join_using_single/schema.sql b/internal/endtoend/testdata/join_using_single/schema.sql new file mode 100644 index 0000000000..a5aebc63f1 --- /dev/null +++ b/internal/endtoend/testdata/join_using_single/schema.sql @@ -0,0 +1,11 @@ +CREATE TABLE orders ( + order_id SERIAL PRIMARY KEY, + customer_name TEXT, + amount DECIMAL(10, 2) +); + +CREATE TABLE shipments ( + shipment_id SERIAL PRIMARY KEY, + order_id INT REFERENCES orders(order_id), + address TEXT +); diff --git a/internal/endtoend/testdata/join_using_single/sqlc.json b/internal/endtoend/testdata/join_using_single/sqlc.json new file mode 100644 index 0000000000..7e80c9d144 --- /dev/null +++ b/internal/endtoend/testdata/join_using_single/sqlc.json @@ -0,0 +1,12 @@ +{ + "version": "1", + "packages": [ + { + "path": "postgresql/go", + "engine": "postgresql", + "name": "querytest", + "schema": "schema.sql", + "queries": "query.sql" + } + ] +} From d7965d661cb97a157f558568a7ffe0be487a3f63 Mon Sep 17 00:00:00 2001 From: Miguel Eduardo Gil Biraud Date: Sat, 6 Dec 2025 14:54:37 +0000 Subject: [PATCH 11/13] Add end-to-end tests for ClickHouse core SQL features Tests for basic ClickHouse functionality: SELECT queries, DML operations (INSERT/UPDATE/DELETE), DISTINCT, ORDER BY, LIMIT/OFFSET pagination, NULL handling, and string functions. Each test includes schema, queries, and generated Go code. --- .../testdata/clickhouse_distinct/go/db.go | 31 ++ .../testdata/clickhouse_distinct/go/models.go | 12 + .../clickhouse_distinct/go/query.sql.go | 69 +++++ .../testdata/clickhouse_distinct/query.sql | 5 + .../testdata/clickhouse_distinct/schema.sql | 9 + .../testdata/clickhouse_distinct/sqlc.json | 16 + .../endtoend/testdata/clickhouse_dml/go/db.go | 31 ++ .../testdata/clickhouse_dml/go/models.go | 25 ++ .../testdata/clickhouse_dml/go/query.sql.go | 273 ++++++++++++++++++ .../testdata/clickhouse_dml/query.sql | 49 ++++ .../testdata/clickhouse_dml/schema.sql | 21 ++ .../testdata/clickhouse_dml/sqlc.json | 16 + .../testdata/clickhouse_nulls/go/db.go | 31 ++ .../testdata/clickhouse_nulls/go/models.go | 17 ++ .../testdata/clickhouse_nulls/go/query.sql.go | 142 +++++++++ .../testdata/clickhouse_nulls/query.sql | 11 + .../testdata/clickhouse_nulls/schema.sql | 10 + .../testdata/clickhouse_nulls/sqlc.json | 16 + .../testdata/clickhouse_ordering/go/db.go | 31 ++ .../testdata/clickhouse_ordering/go/models.go | 16 + .../clickhouse_ordering/go/query.sql.go | 109 +++++++ .../testdata/clickhouse_ordering/query.sql | 8 + .../testdata/clickhouse_ordering/schema.sql | 9 + .../testdata/clickhouse_ordering/sqlc.json | 16 + .../testdata/clickhouse_pagination/go/db.go | 31 ++ .../clickhouse_pagination/go/models.go | 12 + .../clickhouse_pagination/go/query.sql.go | 114 ++++++++ .../testdata/clickhouse_pagination/query.sql | 8 + .../testdata/clickhouse_pagination/schema.sql | 9 + .../testdata/clickhouse_pagination/sqlc.json | 16 + .../testdata/clickhouse_select/go/db.go | 31 ++ .../testdata/clickhouse_select/go/models.go | 11 + .../clickhouse_select/go/query.sql.go | 48 +++ .../testdata/clickhouse_select/query.sql | 5 + .../testdata/clickhouse_select/schema.sql | 8 + .../testdata/clickhouse_select/sqlc.json | 16 + .../testdata/clickhouse_strings/go/db.go | 31 ++ .../testdata/clickhouse_strings/go/models.go | 13 + .../clickhouse_strings/go/query.sql.go | 140 +++++++++ .../testdata/clickhouse_strings/query.sql | 11 + .../testdata/clickhouse_strings/schema.sql | 10 + .../testdata/clickhouse_strings/sqlc.json | 16 + 42 files changed, 1503 insertions(+) create mode 100644 internal/endtoend/testdata/clickhouse_distinct/go/db.go create mode 100644 internal/endtoend/testdata/clickhouse_distinct/go/models.go create mode 100644 internal/endtoend/testdata/clickhouse_distinct/go/query.sql.go create mode 100644 internal/endtoend/testdata/clickhouse_distinct/query.sql create mode 100644 internal/endtoend/testdata/clickhouse_distinct/schema.sql create mode 100644 internal/endtoend/testdata/clickhouse_distinct/sqlc.json create mode 100644 internal/endtoend/testdata/clickhouse_dml/go/db.go create mode 100644 internal/endtoend/testdata/clickhouse_dml/go/models.go create mode 100644 internal/endtoend/testdata/clickhouse_dml/go/query.sql.go create mode 100644 internal/endtoend/testdata/clickhouse_dml/query.sql create mode 100644 internal/endtoend/testdata/clickhouse_dml/schema.sql create mode 100644 internal/endtoend/testdata/clickhouse_dml/sqlc.json create mode 100644 internal/endtoend/testdata/clickhouse_nulls/go/db.go create mode 100644 internal/endtoend/testdata/clickhouse_nulls/go/models.go create mode 100644 internal/endtoend/testdata/clickhouse_nulls/go/query.sql.go create mode 100644 internal/endtoend/testdata/clickhouse_nulls/query.sql create mode 100644 internal/endtoend/testdata/clickhouse_nulls/schema.sql create mode 100644 internal/endtoend/testdata/clickhouse_nulls/sqlc.json create mode 100644 internal/endtoend/testdata/clickhouse_ordering/go/db.go create mode 100644 internal/endtoend/testdata/clickhouse_ordering/go/models.go create mode 100644 internal/endtoend/testdata/clickhouse_ordering/go/query.sql.go create mode 100644 internal/endtoend/testdata/clickhouse_ordering/query.sql create mode 100644 internal/endtoend/testdata/clickhouse_ordering/schema.sql create mode 100644 internal/endtoend/testdata/clickhouse_ordering/sqlc.json create mode 100644 internal/endtoend/testdata/clickhouse_pagination/go/db.go create mode 100644 internal/endtoend/testdata/clickhouse_pagination/go/models.go create mode 100644 internal/endtoend/testdata/clickhouse_pagination/go/query.sql.go create mode 100644 internal/endtoend/testdata/clickhouse_pagination/query.sql create mode 100644 internal/endtoend/testdata/clickhouse_pagination/schema.sql create mode 100644 internal/endtoend/testdata/clickhouse_pagination/sqlc.json create mode 100644 internal/endtoend/testdata/clickhouse_select/go/db.go create mode 100644 internal/endtoend/testdata/clickhouse_select/go/models.go create mode 100644 internal/endtoend/testdata/clickhouse_select/go/query.sql.go create mode 100644 internal/endtoend/testdata/clickhouse_select/query.sql create mode 100644 internal/endtoend/testdata/clickhouse_select/schema.sql create mode 100644 internal/endtoend/testdata/clickhouse_select/sqlc.json create mode 100644 internal/endtoend/testdata/clickhouse_strings/go/db.go create mode 100644 internal/endtoend/testdata/clickhouse_strings/go/models.go create mode 100644 internal/endtoend/testdata/clickhouse_strings/go/query.sql.go create mode 100644 internal/endtoend/testdata/clickhouse_strings/query.sql create mode 100644 internal/endtoend/testdata/clickhouse_strings/schema.sql create mode 100644 internal/endtoend/testdata/clickhouse_strings/sqlc.json diff --git a/internal/endtoend/testdata/clickhouse_distinct/go/db.go b/internal/endtoend/testdata/clickhouse_distinct/go/db.go new file mode 100644 index 0000000000..cd5bbb8e08 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_distinct/go/db.go @@ -0,0 +1,31 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +import ( + "context" + "database/sql" +) + +type DBTX interface { + ExecContext(context.Context, string, ...interface{}) (sql.Result, error) + PrepareContext(context.Context, string) (*sql.Stmt, error) + QueryContext(context.Context, string, ...interface{}) (*sql.Rows, error) + QueryRowContext(context.Context, string, ...interface{}) *sql.Row +} + +func New(db DBTX) *Queries { + return &Queries{db: db} +} + +type Queries struct { + db DBTX +} + +func (q *Queries) WithTx(tx *sql.Tx) *Queries { + return &Queries{ + db: tx, + } +} diff --git a/internal/endtoend/testdata/clickhouse_distinct/go/models.go b/internal/endtoend/testdata/clickhouse_distinct/go/models.go new file mode 100644 index 0000000000..6a12380a6f --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_distinct/go/models.go @@ -0,0 +1,12 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +type User struct { + ID uint32 + Name string + Department string + Salary uint32 +} diff --git a/internal/endtoend/testdata/clickhouse_distinct/go/query.sql.go b/internal/endtoend/testdata/clickhouse_distinct/go/query.sql.go new file mode 100644 index 0000000000..1d3a55c7b5 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_distinct/go/query.sql.go @@ -0,0 +1,69 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 +// source: query.sql + +package db + +import ( + "context" +) + +const distinctDepartments = `-- name: DistinctDepartments :many +SELECT DISTINCT department FROM users; +` + +func (q *Queries) DistinctDepartments(ctx context.Context) ([]string, error) { + rows, err := q.db.QueryContext(ctx, distinctDepartments) + if err != nil { + return nil, err + } + defer rows.Close() + var items []string + for rows.Next() { + var department string + if err := rows.Scan(&department); err != nil { + return nil, err + } + items = append(items, department) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const distinctMultipleColumns = `-- name: DistinctMultipleColumns :many +SELECT DISTINCT department, salary FROM users ORDER BY department; +` + +type DistinctMultipleColumnsRow struct { + Department string + Salary uint32 +} + +func (q *Queries) DistinctMultipleColumns(ctx context.Context) ([]DistinctMultipleColumnsRow, error) { + rows, err := q.db.QueryContext(ctx, distinctMultipleColumns) + if err != nil { + return nil, err + } + defer rows.Close() + var items []DistinctMultipleColumnsRow + for rows.Next() { + var i DistinctMultipleColumnsRow + if err := rows.Scan(&i.Department, &i.Salary); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} diff --git a/internal/endtoend/testdata/clickhouse_distinct/query.sql b/internal/endtoend/testdata/clickhouse_distinct/query.sql new file mode 100644 index 0000000000..888e1db468 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_distinct/query.sql @@ -0,0 +1,5 @@ +-- name: DistinctDepartments :many +SELECT DISTINCT department FROM users; + +-- name: DistinctMultipleColumns :many +SELECT DISTINCT department, salary FROM users ORDER BY department; diff --git a/internal/endtoend/testdata/clickhouse_distinct/schema.sql b/internal/endtoend/testdata/clickhouse_distinct/schema.sql new file mode 100644 index 0000000000..ebdcb09ac6 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_distinct/schema.sql @@ -0,0 +1,9 @@ +CREATE TABLE IF NOT EXISTS users +( + id UInt32, + name String, + department String, + salary UInt32 +) +ENGINE = MergeTree() +ORDER BY id; diff --git a/internal/endtoend/testdata/clickhouse_distinct/sqlc.json b/internal/endtoend/testdata/clickhouse_distinct/sqlc.json new file mode 100644 index 0000000000..8c3f26ae8c --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_distinct/sqlc.json @@ -0,0 +1,16 @@ +{ + "version": "2", + "sql": [ + { + "engine": "clickhouse", + "queries": "query.sql", + "schema": "schema.sql", + "gen": { + "go": { + "out": "go", + "package": "db" + } + } + } + ] +} diff --git a/internal/endtoend/testdata/clickhouse_dml/go/db.go b/internal/endtoend/testdata/clickhouse_dml/go/db.go new file mode 100644 index 0000000000..cd5bbb8e08 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_dml/go/db.go @@ -0,0 +1,31 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +import ( + "context" + "database/sql" +) + +type DBTX interface { + ExecContext(context.Context, string, ...interface{}) (sql.Result, error) + PrepareContext(context.Context, string) (*sql.Stmt, error) + QueryContext(context.Context, string, ...interface{}) (*sql.Rows, error) + QueryRowContext(context.Context, string, ...interface{}) *sql.Row +} + +func New(db DBTX) *Queries { + return &Queries{db: db} +} + +type Queries struct { + db DBTX +} + +func (q *Queries) WithTx(tx *sql.Tx) *Queries { + return &Queries{ + db: tx, + } +} diff --git a/internal/endtoend/testdata/clickhouse_dml/go/models.go b/internal/endtoend/testdata/clickhouse_dml/go/models.go new file mode 100644 index 0000000000..33a2c4225d --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_dml/go/models.go @@ -0,0 +1,25 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +import ( + "time" +) + +type Log struct { + ID uint32 + Level string + Message string + Timestamp time.Time + Source string +} + +type Notification struct { + ID uint32 + UserID uint32 + Message string + ReadStatus uint8 + CreatedAt time.Time +} diff --git a/internal/endtoend/testdata/clickhouse_dml/go/query.sql.go b/internal/endtoend/testdata/clickhouse_dml/go/query.sql.go new file mode 100644 index 0000000000..e58fc32fd7 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_dml/go/query.sql.go @@ -0,0 +1,273 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 +// source: query.sql + +package db + +import ( + "context" + "time" +) + +const countUnreadNotifications = `-- name: CountUnreadNotifications :one +SELECT COUNT(*) as unread_count +FROM notifications +WHERE user_id = ? AND read_status = 0; +` + +func (q *Queries) CountUnreadNotifications(ctx context.Context, userID uint32) (uint64, error) { + row := q.db.QueryRowContext(ctx, countUnreadNotifications, userID) + var unread_count uint64 + err := row.Scan(&unread_count) + return unread_count, err +} + +const getLogs = `-- name: GetLogs :many +SELECT id, level, message, timestamp, source +FROM logs +WHERE timestamp >= ? +ORDER BY timestamp DESC +LIMIT ?; +` + +type GetLogsParams struct { + Timestamp time.Time + Limit int64 +} + +func (q *Queries) GetLogs(ctx context.Context, arg GetLogsParams) ([]Log, error) { + rows, err := q.db.QueryContext(ctx, getLogs, arg.Timestamp, arg.Limit) + if err != nil { + return nil, err + } + defer rows.Close() + var items []Log + for rows.Next() { + var i Log + if err := rows.Scan( + &i.ID, + &i.Level, + &i.Message, + &i.Timestamp, + &i.Source, + ); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getLogsByLevel = `-- name: GetLogsByLevel :many +SELECT id, level, message, timestamp, source +FROM logs +WHERE level = ? +ORDER BY timestamp DESC; +` + +func (q *Queries) GetLogsByLevel(ctx context.Context, level string) ([]Log, error) { + rows, err := q.db.QueryContext(ctx, getLogsByLevel, level) + if err != nil { + return nil, err + } + defer rows.Close() + var items []Log + for rows.Next() { + var i Log + if err := rows.Scan( + &i.ID, + &i.Level, + &i.Message, + &i.Timestamp, + &i.Source, + ); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getNotificationSummary = `-- name: GetNotificationSummary :many +SELECT + level, + COUNT(*) as count +FROM logs +WHERE timestamp >= ? +GROUP BY level +ORDER BY count DESC; +` + +type GetNotificationSummaryRow struct { + Level string + Count uint64 +} + +func (q *Queries) GetNotificationSummary(ctx context.Context, timestamp time.Time) ([]GetNotificationSummaryRow, error) { + rows, err := q.db.QueryContext(ctx, getNotificationSummary, timestamp) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetNotificationSummaryRow + for rows.Next() { + var i GetNotificationSummaryRow + if err := rows.Scan(&i.Level, &i.Count); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getNotifications = `-- name: GetNotifications :many +SELECT id, user_id, message, read_status, created_at +FROM notifications +WHERE user_id = ? +ORDER BY created_at DESC; +` + +func (q *Queries) GetNotifications(ctx context.Context, userID uint32) ([]Notification, error) { + rows, err := q.db.QueryContext(ctx, getNotifications, userID) + if err != nil { + return nil, err + } + defer rows.Close() + var items []Notification + for rows.Next() { + var i Notification + if err := rows.Scan( + &i.ID, + &i.UserID, + &i.Message, + &i.ReadStatus, + &i.CreatedAt, + ); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const insertLog = `-- name: InsertLog :exec +INSERT INTO logs (id, level, message, timestamp, source) +VALUES (?, ?, ?, ?, ?); +` + +type InsertLogParams struct { + ID uint32 + Level string + Message string + Timestamp time.Time + Source string +} + +func (q *Queries) InsertLog(ctx context.Context, arg InsertLogParams) error { + _, err := q.db.ExecContext(ctx, insertLog, + arg.ID, + arg.Level, + arg.Message, + arg.Timestamp, + arg.Source, + ) + return err +} + +const insertMultipleLogs = `-- name: InsertMultipleLogs :exec +INSERT INTO logs (id, level, message, timestamp, source) +VALUES + (?, ?, ?, ?, ?), + (?, ?, ?, ?, ?), + (?, ?, ?, ?, ?); +` + +type InsertMultipleLogsParams struct { + ID uint32 + Level string + Message string + Timestamp time.Time + Source string + ID_2 uint32 + Level_2 string + Message_2 string + Timestamp_2 time.Time + Source_2 string + ID_3 uint32 + Level_3 string + Message_3 string + Timestamp_3 time.Time + Source_3 string +} + +func (q *Queries) InsertMultipleLogs(ctx context.Context, arg InsertMultipleLogsParams) error { + _, err := q.db.ExecContext(ctx, insertMultipleLogs, + arg.ID, + arg.Level, + arg.Message, + arg.Timestamp, + arg.Source, + arg.ID_2, + arg.Level_2, + arg.Message_2, + arg.Timestamp_2, + arg.Source_2, + arg.ID_3, + arg.Level_3, + arg.Message_3, + arg.Timestamp_3, + arg.Source_3, + ) + return err +} + +const insertNotification = `-- name: InsertNotification :exec +INSERT INTO notifications (id, user_id, message, read_status, created_at) +VALUES (?, ?, ?, ?, ?); + +` + +type InsertNotificationParams struct { + ID uint32 + UserID uint32 + Message string + ReadStatus uint8 + CreatedAt time.Time +} + +// Select for use in tests +func (q *Queries) InsertNotification(ctx context.Context, arg InsertNotificationParams) error { + _, err := q.db.ExecContext(ctx, insertNotification, + arg.ID, + arg.UserID, + arg.Message, + arg.ReadStatus, + arg.CreatedAt, + ) + return err +} diff --git a/internal/endtoend/testdata/clickhouse_dml/query.sql b/internal/endtoend/testdata/clickhouse_dml/query.sql new file mode 100644 index 0000000000..43e79b12a7 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_dml/query.sql @@ -0,0 +1,49 @@ +-- Insert operations +-- name: InsertLog :exec +INSERT INTO logs (id, level, message, timestamp, source) +VALUES (?, ?, ?, ?, ?); + +-- name: InsertMultipleLogs :exec +INSERT INTO logs (id, level, message, timestamp, source) +VALUES + (?, ?, ?, ?, ?), + (?, ?, ?, ?, ?), + (?, ?, ?, ?, ?); + +-- name: InsertNotification :exec +INSERT INTO notifications (id, user_id, message, read_status, created_at) +VALUES (?, ?, ?, ?, ?); + +-- Select for use in tests +-- name: GetLogs :many +SELECT id, level, message, timestamp, source +FROM logs +WHERE timestamp >= ? +ORDER BY timestamp DESC +LIMIT ?; + +-- name: GetLogsByLevel :many +SELECT id, level, message, timestamp, source +FROM logs +WHERE level = ? +ORDER BY timestamp DESC; + +-- name: GetNotifications :many +SELECT id, user_id, message, read_status, created_at +FROM notifications +WHERE user_id = ? +ORDER BY created_at DESC; + +-- name: CountUnreadNotifications :one +SELECT COUNT(*) as unread_count +FROM notifications +WHERE user_id = ? AND read_status = 0; + +-- name: GetNotificationSummary :many +SELECT + level, + COUNT(*) as count +FROM logs +WHERE timestamp >= ? +GROUP BY level +ORDER BY count DESC; diff --git a/internal/endtoend/testdata/clickhouse_dml/schema.sql b/internal/endtoend/testdata/clickhouse_dml/schema.sql new file mode 100644 index 0000000000..9732e24d69 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_dml/schema.sql @@ -0,0 +1,21 @@ +CREATE TABLE IF NOT EXISTS logs +( + id UInt32, + level String, + message String, + timestamp DateTime, + source String +) +ENGINE = MergeTree() +ORDER BY (timestamp, id); + +CREATE TABLE IF NOT EXISTS notifications +( + id UInt32, + user_id UInt32, + message String, + read_status UInt8, + created_at DateTime +) +ENGINE = MergeTree() +ORDER BY (user_id, created_at); diff --git a/internal/endtoend/testdata/clickhouse_dml/sqlc.json b/internal/endtoend/testdata/clickhouse_dml/sqlc.json new file mode 100644 index 0000000000..439f37f401 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_dml/sqlc.json @@ -0,0 +1,16 @@ +{ + "version": "2", + "sql": [ + { + "schema": "schema.sql", + "queries": "query.sql", + "engine": "clickhouse", + "gen": { + "go": { + "out": "go", + "package": "db" + } + } + } + ] +} diff --git a/internal/endtoend/testdata/clickhouse_nulls/go/db.go b/internal/endtoend/testdata/clickhouse_nulls/go/db.go new file mode 100644 index 0000000000..cd5bbb8e08 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_nulls/go/db.go @@ -0,0 +1,31 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +import ( + "context" + "database/sql" +) + +type DBTX interface { + ExecContext(context.Context, string, ...interface{}) (sql.Result, error) + PrepareContext(context.Context, string) (*sql.Stmt, error) + QueryContext(context.Context, string, ...interface{}) (*sql.Rows, error) + QueryRowContext(context.Context, string, ...interface{}) *sql.Row +} + +func New(db DBTX) *Queries { + return &Queries{db: db} +} + +type Queries struct { + db DBTX +} + +func (q *Queries) WithTx(tx *sql.Tx) *Queries { + return &Queries{ + db: tx, + } +} diff --git a/internal/endtoend/testdata/clickhouse_nulls/go/models.go b/internal/endtoend/testdata/clickhouse_nulls/go/models.go new file mode 100644 index 0000000000..b4259b3299 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_nulls/go/models.go @@ -0,0 +1,17 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +import ( + "database/sql" +) + +type Product struct { + ID uint32 + Name string + Description sql.NullString + Discount sql.NullFloat64 + Category string +} diff --git a/internal/endtoend/testdata/clickhouse_nulls/go/query.sql.go b/internal/endtoend/testdata/clickhouse_nulls/go/query.sql.go new file mode 100644 index 0000000000..c53553cbb4 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_nulls/go/query.sql.go @@ -0,0 +1,142 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 +// source: query.sql + +package db + +import ( + "context" + "database/sql" +) + +const getProductsWithDefault = `-- name: GetProductsWithDefault :many +SELECT id, name, ifNull(category, 'Uncategorized') AS category FROM products; +` + +type GetProductsWithDefaultRow struct { + ID uint32 + Name string + Category interface{} +} + +func (q *Queries) GetProductsWithDefault(ctx context.Context) ([]GetProductsWithDefaultRow, error) { + rows, err := q.db.QueryContext(ctx, getProductsWithDefault) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetProductsWithDefaultRow + for rows.Next() { + var i GetProductsWithDefaultRow + if err := rows.Scan(&i.ID, &i.Name, &i.Category); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getProductsWithDescription = `-- name: GetProductsWithDescription :many +SELECT id, name, description FROM products WHERE description IS NOT NULL; +` + +type GetProductsWithDescriptionRow struct { + ID uint32 + Name string + Description sql.NullString +} + +func (q *Queries) GetProductsWithDescription(ctx context.Context) ([]GetProductsWithDescriptionRow, error) { + rows, err := q.db.QueryContext(ctx, getProductsWithDescription) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetProductsWithDescriptionRow + for rows.Next() { + var i GetProductsWithDescriptionRow + if err := rows.Scan(&i.ID, &i.Name, &i.Description); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getProductsWithDiscount = `-- name: GetProductsWithDiscount :many +SELECT id, name, coalesce(discount, 0) AS discount FROM products; +` + +type GetProductsWithDiscountRow struct { + ID uint32 + Name string + Discount interface{} +} + +func (q *Queries) GetProductsWithDiscount(ctx context.Context) ([]GetProductsWithDiscountRow, error) { + rows, err := q.db.QueryContext(ctx, getProductsWithDiscount) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetProductsWithDiscountRow + for rows.Next() { + var i GetProductsWithDiscountRow + if err := rows.Scan(&i.ID, &i.Name, &i.Discount); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getProductsWithoutDescription = `-- name: GetProductsWithoutDescription :many +SELECT id, name FROM products WHERE description IS NULL; +` + +type GetProductsWithoutDescriptionRow struct { + ID uint32 + Name string +} + +func (q *Queries) GetProductsWithoutDescription(ctx context.Context) ([]GetProductsWithoutDescriptionRow, error) { + rows, err := q.db.QueryContext(ctx, getProductsWithoutDescription) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetProductsWithoutDescriptionRow + for rows.Next() { + var i GetProductsWithoutDescriptionRow + if err := rows.Scan(&i.ID, &i.Name); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} diff --git a/internal/endtoend/testdata/clickhouse_nulls/query.sql b/internal/endtoend/testdata/clickhouse_nulls/query.sql new file mode 100644 index 0000000000..fc86c09e2b --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_nulls/query.sql @@ -0,0 +1,11 @@ +-- name: GetProductsWithoutDescription :many +SELECT id, name FROM products WHERE description IS NULL; + +-- name: GetProductsWithDescription :many +SELECT id, name, description FROM products WHERE description IS NOT NULL; + +-- name: GetProductsWithDiscount :many +SELECT id, name, coalesce(discount, 0) AS discount FROM products; + +-- name: GetProductsWithDefault :many +SELECT id, name, ifNull(category, 'Uncategorized') AS category FROM products; diff --git a/internal/endtoend/testdata/clickhouse_nulls/schema.sql b/internal/endtoend/testdata/clickhouse_nulls/schema.sql new file mode 100644 index 0000000000..067a5d6d39 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_nulls/schema.sql @@ -0,0 +1,10 @@ +CREATE TABLE IF NOT EXISTS products +( + id UInt32, + name String, + description Nullable(String), + discount Nullable(Float32), + category String +) +ENGINE = MergeTree() +ORDER BY id; diff --git a/internal/endtoend/testdata/clickhouse_nulls/sqlc.json b/internal/endtoend/testdata/clickhouse_nulls/sqlc.json new file mode 100644 index 0000000000..8c3f26ae8c --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_nulls/sqlc.json @@ -0,0 +1,16 @@ +{ + "version": "2", + "sql": [ + { + "engine": "clickhouse", + "queries": "query.sql", + "schema": "schema.sql", + "gen": { + "go": { + "out": "go", + "package": "db" + } + } + } + ] +} diff --git a/internal/endtoend/testdata/clickhouse_ordering/go/db.go b/internal/endtoend/testdata/clickhouse_ordering/go/db.go new file mode 100644 index 0000000000..cd5bbb8e08 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_ordering/go/db.go @@ -0,0 +1,31 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +import ( + "context" + "database/sql" +) + +type DBTX interface { + ExecContext(context.Context, string, ...interface{}) (sql.Result, error) + PrepareContext(context.Context, string) (*sql.Stmt, error) + QueryContext(context.Context, string, ...interface{}) (*sql.Rows, error) + QueryRowContext(context.Context, string, ...interface{}) *sql.Row +} + +func New(db DBTX) *Queries { + return &Queries{db: db} +} + +type Queries struct { + db DBTX +} + +func (q *Queries) WithTx(tx *sql.Tx) *Queries { + return &Queries{ + db: tx, + } +} diff --git a/internal/endtoend/testdata/clickhouse_ordering/go/models.go b/internal/endtoend/testdata/clickhouse_ordering/go/models.go new file mode 100644 index 0000000000..e555f80ae4 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_ordering/go/models.go @@ -0,0 +1,16 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +import ( + "time" +) + +type Order struct { + ID uint32 + CustomerName string + Total float32 + CreatedAt time.Time +} diff --git a/internal/endtoend/testdata/clickhouse_ordering/go/query.sql.go b/internal/endtoend/testdata/clickhouse_ordering/go/query.sql.go new file mode 100644 index 0000000000..5f064a18ac --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_ordering/go/query.sql.go @@ -0,0 +1,109 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 +// source: query.sql + +package db + +import ( + "context" + "time" +) + +const listOrdersAscending = `-- name: ListOrdersAscending :many +SELECT id, total FROM orders ORDER BY total ASC; +` + +type ListOrdersAscendingRow struct { + ID uint32 + Total float32 +} + +func (q *Queries) ListOrdersAscending(ctx context.Context) ([]ListOrdersAscendingRow, error) { + rows, err := q.db.QueryContext(ctx, listOrdersAscending) + if err != nil { + return nil, err + } + defer rows.Close() + var items []ListOrdersAscendingRow + for rows.Next() { + var i ListOrdersAscendingRow + if err := rows.Scan(&i.ID, &i.Total); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const listOrdersByCustomerAndDate = `-- name: ListOrdersByCustomerAndDate :many +SELECT id, customer_name, created_at FROM orders ORDER BY customer_name, created_at DESC; +` + +type ListOrdersByCustomerAndDateRow struct { + ID uint32 + CustomerName string + CreatedAt time.Time +} + +func (q *Queries) ListOrdersByCustomerAndDate(ctx context.Context) ([]ListOrdersByCustomerAndDateRow, error) { + rows, err := q.db.QueryContext(ctx, listOrdersByCustomerAndDate) + if err != nil { + return nil, err + } + defer rows.Close() + var items []ListOrdersByCustomerAndDateRow + for rows.Next() { + var i ListOrdersByCustomerAndDateRow + if err := rows.Scan(&i.ID, &i.CustomerName, &i.CreatedAt); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const listOrdersByTotal = `-- name: ListOrdersByTotal :many +SELECT id, customer_name, total FROM orders ORDER BY total DESC; +` + +type ListOrdersByTotalRow struct { + ID uint32 + CustomerName string + Total float32 +} + +func (q *Queries) ListOrdersByTotal(ctx context.Context) ([]ListOrdersByTotalRow, error) { + rows, err := q.db.QueryContext(ctx, listOrdersByTotal) + if err != nil { + return nil, err + } + defer rows.Close() + var items []ListOrdersByTotalRow + for rows.Next() { + var i ListOrdersByTotalRow + if err := rows.Scan(&i.ID, &i.CustomerName, &i.Total); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} diff --git a/internal/endtoend/testdata/clickhouse_ordering/query.sql b/internal/endtoend/testdata/clickhouse_ordering/query.sql new file mode 100644 index 0000000000..cd111c3682 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_ordering/query.sql @@ -0,0 +1,8 @@ +-- name: ListOrdersByTotal :many +SELECT id, customer_name, total FROM orders ORDER BY total DESC; + +-- name: ListOrdersByCustomerAndDate :many +SELECT id, customer_name, created_at FROM orders ORDER BY customer_name, created_at DESC; + +-- name: ListOrdersAscending :many +SELECT id, total FROM orders ORDER BY total ASC; diff --git a/internal/endtoend/testdata/clickhouse_ordering/schema.sql b/internal/endtoend/testdata/clickhouse_ordering/schema.sql new file mode 100644 index 0000000000..cb6f46ba2a --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_ordering/schema.sql @@ -0,0 +1,9 @@ +CREATE TABLE IF NOT EXISTS orders +( + id UInt32, + customer_name String, + total Float32, + created_at DateTime +) +ENGINE = MergeTree() +ORDER BY id; diff --git a/internal/endtoend/testdata/clickhouse_ordering/sqlc.json b/internal/endtoend/testdata/clickhouse_ordering/sqlc.json new file mode 100644 index 0000000000..8c3f26ae8c --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_ordering/sqlc.json @@ -0,0 +1,16 @@ +{ + "version": "2", + "sql": [ + { + "engine": "clickhouse", + "queries": "query.sql", + "schema": "schema.sql", + "gen": { + "go": { + "out": "go", + "package": "db" + } + } + } + ] +} diff --git a/internal/endtoend/testdata/clickhouse_pagination/go/db.go b/internal/endtoend/testdata/clickhouse_pagination/go/db.go new file mode 100644 index 0000000000..cd5bbb8e08 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_pagination/go/db.go @@ -0,0 +1,31 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +import ( + "context" + "database/sql" +) + +type DBTX interface { + ExecContext(context.Context, string, ...interface{}) (sql.Result, error) + PrepareContext(context.Context, string) (*sql.Stmt, error) + QueryContext(context.Context, string, ...interface{}) (*sql.Rows, error) + QueryRowContext(context.Context, string, ...interface{}) *sql.Row +} + +func New(db DBTX) *Queries { + return &Queries{db: db} +} + +type Queries struct { + db DBTX +} + +func (q *Queries) WithTx(tx *sql.Tx) *Queries { + return &Queries{ + db: tx, + } +} diff --git a/internal/endtoend/testdata/clickhouse_pagination/go/models.go b/internal/endtoend/testdata/clickhouse_pagination/go/models.go new file mode 100644 index 0000000000..eb9a3ea2bb --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_pagination/go/models.go @@ -0,0 +1,12 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +type Product struct { + ID uint32 + Name string + Price float32 + Stock uint32 +} diff --git a/internal/endtoend/testdata/clickhouse_pagination/go/query.sql.go b/internal/endtoend/testdata/clickhouse_pagination/go/query.sql.go new file mode 100644 index 0000000000..2cfd85f48b --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_pagination/go/query.sql.go @@ -0,0 +1,114 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 +// source: query.sql + +package db + +import ( + "context" +) + +const getFirstNProducts = `-- name: GetFirstNProducts :many +SELECT id, name, price FROM products LIMIT ?; +` + +type GetFirstNProductsRow struct { + ID uint32 + Name string + Price float32 +} + +func (q *Queries) GetFirstNProducts(ctx context.Context, limit int64) ([]GetFirstNProductsRow, error) { + rows, err := q.db.QueryContext(ctx, getFirstNProducts, limit) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetFirstNProductsRow + for rows.Next() { + var i GetFirstNProductsRow + if err := rows.Scan(&i.ID, &i.Name, &i.Price); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getProductsWithOffset = `-- name: GetProductsWithOffset :many +SELECT id, name, price FROM products ORDER BY id LIMIT 10 OFFSET ?; +` + +type GetProductsWithOffsetRow struct { + ID uint32 + Name string + Price float32 +} + +func (q *Queries) GetProductsWithOffset(ctx context.Context, offset int64) ([]GetProductsWithOffsetRow, error) { + rows, err := q.db.QueryContext(ctx, getProductsWithOffset, offset) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetProductsWithOffsetRow + for rows.Next() { + var i GetProductsWithOffsetRow + if err := rows.Scan(&i.ID, &i.Name, &i.Price); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const listProductsPage = `-- name: ListProductsPage :many +SELECT id, name, price FROM products ORDER BY id LIMIT ? OFFSET ?; +` + +type ListProductsPageParams struct { + Limit int64 + Offset int64 +} + +type ListProductsPageRow struct { + ID uint32 + Name string + Price float32 +} + +func (q *Queries) ListProductsPage(ctx context.Context, arg ListProductsPageParams) ([]ListProductsPageRow, error) { + rows, err := q.db.QueryContext(ctx, listProductsPage, arg.Limit, arg.Offset) + if err != nil { + return nil, err + } + defer rows.Close() + var items []ListProductsPageRow + for rows.Next() { + var i ListProductsPageRow + if err := rows.Scan(&i.ID, &i.Name, &i.Price); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} diff --git a/internal/endtoend/testdata/clickhouse_pagination/query.sql b/internal/endtoend/testdata/clickhouse_pagination/query.sql new file mode 100644 index 0000000000..b61d1ad3b3 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_pagination/query.sql @@ -0,0 +1,8 @@ +-- name: ListProductsPage :many +SELECT id, name, price FROM products ORDER BY id LIMIT ? OFFSET ?; + +-- name: GetFirstNProducts :many +SELECT id, name, price FROM products LIMIT ?; + +-- name: GetProductsWithOffset :many +SELECT id, name, price FROM products ORDER BY id LIMIT 10 OFFSET ?; diff --git a/internal/endtoend/testdata/clickhouse_pagination/schema.sql b/internal/endtoend/testdata/clickhouse_pagination/schema.sql new file mode 100644 index 0000000000..bf182a05c0 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_pagination/schema.sql @@ -0,0 +1,9 @@ +CREATE TABLE IF NOT EXISTS products +( + id UInt32, + name String, + price Float32, + stock UInt32 +) +ENGINE = MergeTree() +ORDER BY id; diff --git a/internal/endtoend/testdata/clickhouse_pagination/sqlc.json b/internal/endtoend/testdata/clickhouse_pagination/sqlc.json new file mode 100644 index 0000000000..8c3f26ae8c --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_pagination/sqlc.json @@ -0,0 +1,16 @@ +{ + "version": "2", + "sql": [ + { + "engine": "clickhouse", + "queries": "query.sql", + "schema": "schema.sql", + "gen": { + "go": { + "out": "go", + "package": "db" + } + } + } + ] +} diff --git a/internal/endtoend/testdata/clickhouse_select/go/db.go b/internal/endtoend/testdata/clickhouse_select/go/db.go new file mode 100644 index 0000000000..cd5bbb8e08 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_select/go/db.go @@ -0,0 +1,31 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +import ( + "context" + "database/sql" +) + +type DBTX interface { + ExecContext(context.Context, string, ...interface{}) (sql.Result, error) + PrepareContext(context.Context, string) (*sql.Stmt, error) + QueryContext(context.Context, string, ...interface{}) (*sql.Rows, error) + QueryRowContext(context.Context, string, ...interface{}) *sql.Row +} + +func New(db DBTX) *Queries { + return &Queries{db: db} +} + +type Queries struct { + db DBTX +} + +func (q *Queries) WithTx(tx *sql.Tx) *Queries { + return &Queries{ + db: tx, + } +} diff --git a/internal/endtoend/testdata/clickhouse_select/go/models.go b/internal/endtoend/testdata/clickhouse_select/go/models.go new file mode 100644 index 0000000000..4eec6c305f --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_select/go/models.go @@ -0,0 +1,11 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +type User struct { + ID uint32 + Name string + Email string +} diff --git a/internal/endtoend/testdata/clickhouse_select/go/query.sql.go b/internal/endtoend/testdata/clickhouse_select/go/query.sql.go new file mode 100644 index 0000000000..7bc55dc954 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_select/go/query.sql.go @@ -0,0 +1,48 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 +// source: query.sql + +package db + +import ( + "context" +) + +const getUser = `-- name: GetUser :one +SELECT id, name, email FROM users WHERE id = ?; +` + +func (q *Queries) GetUser(ctx context.Context, id uint32) (User, error) { + row := q.db.QueryRowContext(ctx, getUser, id) + var i User + err := row.Scan(&i.ID, &i.Name, &i.Email) + return i, err +} + +const listUsers = `-- name: ListUsers :many +SELECT id, name, email FROM users ORDER BY name; +` + +func (q *Queries) ListUsers(ctx context.Context) ([]User, error) { + rows, err := q.db.QueryContext(ctx, listUsers) + if err != nil { + return nil, err + } + defer rows.Close() + var items []User + for rows.Next() { + var i User + if err := rows.Scan(&i.ID, &i.Name, &i.Email); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} diff --git a/internal/endtoend/testdata/clickhouse_select/query.sql b/internal/endtoend/testdata/clickhouse_select/query.sql new file mode 100644 index 0000000000..32dbc22fff --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_select/query.sql @@ -0,0 +1,5 @@ +-- name: GetUser :one +SELECT id, name, email FROM users WHERE id = ?; + +-- name: ListUsers :many +SELECT id, name, email FROM users ORDER BY name; diff --git a/internal/endtoend/testdata/clickhouse_select/schema.sql b/internal/endtoend/testdata/clickhouse_select/schema.sql new file mode 100644 index 0000000000..eb2ae68d06 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_select/schema.sql @@ -0,0 +1,8 @@ +CREATE TABLE IF NOT EXISTS users +( + id UInt32, + name String, + email String +) +ENGINE = MergeTree() +ORDER BY id; diff --git a/internal/endtoend/testdata/clickhouse_select/sqlc.json b/internal/endtoend/testdata/clickhouse_select/sqlc.json new file mode 100644 index 0000000000..8c3f26ae8c --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_select/sqlc.json @@ -0,0 +1,16 @@ +{ + "version": "2", + "sql": [ + { + "engine": "clickhouse", + "queries": "query.sql", + "schema": "schema.sql", + "gen": { + "go": { + "out": "go", + "package": "db" + } + } + } + ] +} diff --git a/internal/endtoend/testdata/clickhouse_strings/go/db.go b/internal/endtoend/testdata/clickhouse_strings/go/db.go new file mode 100644 index 0000000000..cd5bbb8e08 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_strings/go/db.go @@ -0,0 +1,31 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +import ( + "context" + "database/sql" +) + +type DBTX interface { + ExecContext(context.Context, string, ...interface{}) (sql.Result, error) + PrepareContext(context.Context, string) (*sql.Stmt, error) + QueryContext(context.Context, string, ...interface{}) (*sql.Rows, error) + QueryRowContext(context.Context, string, ...interface{}) *sql.Row +} + +func New(db DBTX) *Queries { + return &Queries{db: db} +} + +type Queries struct { + db DBTX +} + +func (q *Queries) WithTx(tx *sql.Tx) *Queries { + return &Queries{ + db: tx, + } +} diff --git a/internal/endtoend/testdata/clickhouse_strings/go/models.go b/internal/endtoend/testdata/clickhouse_strings/go/models.go new file mode 100644 index 0000000000..3ab8a05b32 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_strings/go/models.go @@ -0,0 +1,13 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +type Employee struct { + ID uint32 + FirstName string + LastName string + Email string + Bio string +} diff --git a/internal/endtoend/testdata/clickhouse_strings/go/query.sql.go b/internal/endtoend/testdata/clickhouse_strings/go/query.sql.go new file mode 100644 index 0000000000..c897d60f16 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_strings/go/query.sql.go @@ -0,0 +1,140 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 +// source: query.sql + +package db + +import ( + "context" +) + +const getEmailDomain = `-- name: GetEmailDomain :many +SELECT id, email, substring(email, position(email, '@') + 1) AS domain FROM employees; +` + +type GetEmailDomainRow struct { + ID uint32 + Email string + Domain string +} + +func (q *Queries) GetEmailDomain(ctx context.Context) ([]GetEmailDomainRow, error) { + rows, err := q.db.QueryContext(ctx, getEmailDomain) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetEmailDomainRow + for rows.Next() { + var i GetEmailDomainRow + if err := rows.Scan(&i.ID, &i.Email, &i.Domain); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getFullName = `-- name: GetFullName :many +SELECT id, concat(first_name, ' ', last_name) AS full_name FROM employees; +` + +type GetFullNameRow struct { + ID uint32 + FullName string +} + +func (q *Queries) GetFullName(ctx context.Context) ([]GetFullNameRow, error) { + rows, err := q.db.QueryContext(ctx, getFullName) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetFullNameRow + for rows.Next() { + var i GetFullNameRow + if err := rows.Scan(&i.ID, &i.FullName); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getUppercaseNames = `-- name: GetUppercaseNames :many +SELECT id, upper(first_name) AS first_name_upper, lower(last_name) AS last_name_lower FROM employees; +` + +type GetUppercaseNamesRow struct { + ID uint32 + FirstNameUpper string + LastNameLower string +} + +func (q *Queries) GetUppercaseNames(ctx context.Context) ([]GetUppercaseNamesRow, error) { + rows, err := q.db.QueryContext(ctx, getUppercaseNames) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetUppercaseNamesRow + for rows.Next() { + var i GetUppercaseNamesRow + if err := rows.Scan(&i.ID, &i.FirstNameUpper, &i.LastNameLower); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const trimWhitespace = `-- name: TrimWhitespace :many +SELECT id, trim(bio) AS bio FROM employees; +` + +type TrimWhitespaceRow struct { + ID uint32 + Bio string +} + +func (q *Queries) TrimWhitespace(ctx context.Context) ([]TrimWhitespaceRow, error) { + rows, err := q.db.QueryContext(ctx, trimWhitespace) + if err != nil { + return nil, err + } + defer rows.Close() + var items []TrimWhitespaceRow + for rows.Next() { + var i TrimWhitespaceRow + if err := rows.Scan(&i.ID, &i.Bio); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} diff --git a/internal/endtoend/testdata/clickhouse_strings/query.sql b/internal/endtoend/testdata/clickhouse_strings/query.sql new file mode 100644 index 0000000000..1e80eafc4f --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_strings/query.sql @@ -0,0 +1,11 @@ +-- name: GetFullName :many +SELECT id, concat(first_name, ' ', last_name) AS full_name FROM employees; + +-- name: GetUppercaseNames :many +SELECT id, upper(first_name) AS first_name_upper, lower(last_name) AS last_name_lower FROM employees; + +-- name: GetEmailDomain :many +SELECT id, email, substring(email, position(email, '@') + 1) AS domain FROM employees; + +-- name: TrimWhitespace :many +SELECT id, trim(bio) AS bio FROM employees; diff --git a/internal/endtoend/testdata/clickhouse_strings/schema.sql b/internal/endtoend/testdata/clickhouse_strings/schema.sql new file mode 100644 index 0000000000..42f01ccb83 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_strings/schema.sql @@ -0,0 +1,10 @@ +CREATE TABLE IF NOT EXISTS employees +( + id UInt32, + first_name String, + last_name String, + email String, + bio String +) +ENGINE = MergeTree() +ORDER BY id; diff --git a/internal/endtoend/testdata/clickhouse_strings/sqlc.json b/internal/endtoend/testdata/clickhouse_strings/sqlc.json new file mode 100644 index 0000000000..8c3f26ae8c --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_strings/sqlc.json @@ -0,0 +1,16 @@ +{ + "version": "2", + "sql": [ + { + "engine": "clickhouse", + "queries": "query.sql", + "schema": "schema.sql", + "gen": { + "go": { + "out": "go", + "package": "db" + } + } + } + ] +} From 01638c97d8dc87bf9ddea60edf092cf962bd7ee0 Mon Sep 17 00:00:00 2001 From: Miguel Eduardo Gil Biraud Date: Sat, 6 Dec 2025 14:54:44 +0000 Subject: [PATCH 12/13] Add end-to-end tests for ClickHouse advanced SQL features Tests for complex SQL constructs: JOIN operations (explicit and implicit), subqueries (including IN subqueries), common table expressions (CTEs), aggregate functions, GROUP BY with HAVING, and EXISTS operator. Each test includes schema, queries, and generated Go code. --- .../testdata/clickhouse_aggregates/go/db.go | 31 +++ .../clickhouse_aggregates/go/models.go | 18 ++ .../clickhouse_aggregates/go/query.sql.go | 206 ++++++++++++++++++ .../testdata/clickhouse_aggregates/query.sql | 46 ++++ .../testdata/clickhouse_aggregates/schema.sql | 11 + .../testdata/clickhouse_aggregates/sqlc.json | 16 ++ .../endtoend/testdata/clickhouse_cte/go/db.go | 31 +++ .../testdata/clickhouse_cte/go/models.go | 16 ++ .../testdata/clickhouse_cte/go/query.sql.go | 84 +++++++ .../testdata/clickhouse_cte/query.sql | 14 ++ .../testdata/clickhouse_cte/schema.sql | 9 + .../testdata/clickhouse_cte/sqlc.json | 16 ++ .../testdata/clickhouse_exists/go/db.go | 31 +++ .../testdata/clickhouse_exists/go/models.go | 15 ++ .../clickhouse_exists/go/query.sql.go | 64 ++++++ .../testdata/clickhouse_exists/query.sql | 5 + .../testdata/clickhouse_exists/schema.sql | 15 ++ .../testdata/clickhouse_exists/sqlc.json | 16 ++ .../testdata/clickhouse_having/go/db.go | 31 +++ .../testdata/clickhouse_having/go/models.go | 12 + .../clickhouse_having/go/query.sql.go | 106 +++++++++ .../testdata/clickhouse_having/query.sql | 8 + .../testdata/clickhouse_having/schema.sql | 9 + .../testdata/clickhouse_having/sqlc.json | 16 ++ .../clickhouse_implicit_join/go/db.go | 31 +++ .../clickhouse_implicit_join/go/models.go | 17 ++ .../clickhouse_implicit_join/go/query.sql.go | 75 +++++++ .../clickhouse_implicit_join/query.sql | 5 + .../clickhouse_implicit_join/schema.sql | 17 ++ .../clickhouse_implicit_join/sqlc.json | 16 ++ .../testdata/clickhouse_in_subquery/go/db.go | 31 +++ .../clickhouse_in_subquery/go/models.go | 16 ++ .../clickhouse_in_subquery/go/query.sql.go | 112 ++++++++++ .../testdata/clickhouse_in_subquery/query.sql | 8 + .../clickhouse_in_subquery/schema.sql | 16 ++ .../testdata/clickhouse_in_subquery/sqlc.json | 16 ++ .../testdata/clickhouse_joins/go/db.go | 31 +++ .../testdata/clickhouse_joins/go/models.go | 28 +++ .../testdata/clickhouse_joins/go/query.sql.go | 187 ++++++++++++++++ .../testdata/clickhouse_joins/query.sql | 47 ++++ .../testdata/clickhouse_joins/schema.sql | 27 +++ .../testdata/clickhouse_joins/sqlc.json | 16 ++ .../testdata/clickhouse_subqueries/go/db.go | 31 +++ .../clickhouse_subqueries/go/models.go | 24 ++ .../clickhouse_subqueries/go/query.sql.go | 94 ++++++++ .../testdata/clickhouse_subqueries/query.sql | 18 ++ .../testdata/clickhouse_subqueries/schema.sql | 20 ++ .../testdata/clickhouse_subqueries/sqlc.json | 16 ++ 48 files changed, 1725 insertions(+) create mode 100644 internal/endtoend/testdata/clickhouse_aggregates/go/db.go create mode 100644 internal/endtoend/testdata/clickhouse_aggregates/go/models.go create mode 100644 internal/endtoend/testdata/clickhouse_aggregates/go/query.sql.go create mode 100644 internal/endtoend/testdata/clickhouse_aggregates/query.sql create mode 100644 internal/endtoend/testdata/clickhouse_aggregates/schema.sql create mode 100644 internal/endtoend/testdata/clickhouse_aggregates/sqlc.json create mode 100644 internal/endtoend/testdata/clickhouse_cte/go/db.go create mode 100644 internal/endtoend/testdata/clickhouse_cte/go/models.go create mode 100644 internal/endtoend/testdata/clickhouse_cte/go/query.sql.go create mode 100644 internal/endtoend/testdata/clickhouse_cte/query.sql create mode 100644 internal/endtoend/testdata/clickhouse_cte/schema.sql create mode 100644 internal/endtoend/testdata/clickhouse_cte/sqlc.json create mode 100644 internal/endtoend/testdata/clickhouse_exists/go/db.go create mode 100644 internal/endtoend/testdata/clickhouse_exists/go/models.go create mode 100644 internal/endtoend/testdata/clickhouse_exists/go/query.sql.go create mode 100644 internal/endtoend/testdata/clickhouse_exists/query.sql create mode 100644 internal/endtoend/testdata/clickhouse_exists/schema.sql create mode 100644 internal/endtoend/testdata/clickhouse_exists/sqlc.json create mode 100644 internal/endtoend/testdata/clickhouse_having/go/db.go create mode 100644 internal/endtoend/testdata/clickhouse_having/go/models.go create mode 100644 internal/endtoend/testdata/clickhouse_having/go/query.sql.go create mode 100644 internal/endtoend/testdata/clickhouse_having/query.sql create mode 100644 internal/endtoend/testdata/clickhouse_having/schema.sql create mode 100644 internal/endtoend/testdata/clickhouse_having/sqlc.json create mode 100644 internal/endtoend/testdata/clickhouse_implicit_join/go/db.go create mode 100644 internal/endtoend/testdata/clickhouse_implicit_join/go/models.go create mode 100644 internal/endtoend/testdata/clickhouse_implicit_join/go/query.sql.go create mode 100644 internal/endtoend/testdata/clickhouse_implicit_join/query.sql create mode 100644 internal/endtoend/testdata/clickhouse_implicit_join/schema.sql create mode 100644 internal/endtoend/testdata/clickhouse_implicit_join/sqlc.json create mode 100644 internal/endtoend/testdata/clickhouse_in_subquery/go/db.go create mode 100644 internal/endtoend/testdata/clickhouse_in_subquery/go/models.go create mode 100644 internal/endtoend/testdata/clickhouse_in_subquery/go/query.sql.go create mode 100644 internal/endtoend/testdata/clickhouse_in_subquery/query.sql create mode 100644 internal/endtoend/testdata/clickhouse_in_subquery/schema.sql create mode 100644 internal/endtoend/testdata/clickhouse_in_subquery/sqlc.json create mode 100644 internal/endtoend/testdata/clickhouse_joins/go/db.go create mode 100644 internal/endtoend/testdata/clickhouse_joins/go/models.go create mode 100644 internal/endtoend/testdata/clickhouse_joins/go/query.sql.go create mode 100644 internal/endtoend/testdata/clickhouse_joins/query.sql create mode 100644 internal/endtoend/testdata/clickhouse_joins/schema.sql create mode 100644 internal/endtoend/testdata/clickhouse_joins/sqlc.json create mode 100644 internal/endtoend/testdata/clickhouse_subqueries/go/db.go create mode 100644 internal/endtoend/testdata/clickhouse_subqueries/go/models.go create mode 100644 internal/endtoend/testdata/clickhouse_subqueries/go/query.sql.go create mode 100644 internal/endtoend/testdata/clickhouse_subqueries/query.sql create mode 100644 internal/endtoend/testdata/clickhouse_subqueries/schema.sql create mode 100644 internal/endtoend/testdata/clickhouse_subqueries/sqlc.json diff --git a/internal/endtoend/testdata/clickhouse_aggregates/go/db.go b/internal/endtoend/testdata/clickhouse_aggregates/go/db.go new file mode 100644 index 0000000000..cd5bbb8e08 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_aggregates/go/db.go @@ -0,0 +1,31 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +import ( + "context" + "database/sql" +) + +type DBTX interface { + ExecContext(context.Context, string, ...interface{}) (sql.Result, error) + PrepareContext(context.Context, string) (*sql.Stmt, error) + QueryContext(context.Context, string, ...interface{}) (*sql.Rows, error) + QueryRowContext(context.Context, string, ...interface{}) *sql.Row +} + +func New(db DBTX) *Queries { + return &Queries{db: db} +} + +type Queries struct { + db DBTX +} + +func (q *Queries) WithTx(tx *sql.Tx) *Queries { + return &Queries{ + db: tx, + } +} diff --git a/internal/endtoend/testdata/clickhouse_aggregates/go/models.go b/internal/endtoend/testdata/clickhouse_aggregates/go/models.go new file mode 100644 index 0000000000..b1c0d19059 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_aggregates/go/models.go @@ -0,0 +1,18 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +import ( + "time" +) + +type Sale struct { + ID uint32 + ProductID uint32 + Category string + Amount float64 + Quantity uint32 + CreatedAt time.Time +} diff --git a/internal/endtoend/testdata/clickhouse_aggregates/go/query.sql.go b/internal/endtoend/testdata/clickhouse_aggregates/go/query.sql.go new file mode 100644 index 0000000000..8518c88c98 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_aggregates/go/query.sql.go @@ -0,0 +1,206 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 +// source: query.sql + +package db + +import ( + "context" + "time" +) + +const getCategoryStats = `-- name: GetCategoryStats :many +SELECT + category, + COUNT(*) as all_sales, + countIf(amount > 100) as high_value_sales, + sumIf(amount, quantity > 5) as revenue_bulk_orders, + avgIf(amount, amount > 50) as avg_high_value +FROM sales +WHERE created_at >= ? +GROUP BY category; + +` + +type GetCategoryStatsRow struct { + Category string + AllSales uint64 + HighValueSales uint64 + RevenueBulkOrders float64 + AvgHighValue float64 +} + +// HAVING clause +func (q *Queries) GetCategoryStats(ctx context.Context, createdAt time.Time) ([]GetCategoryStatsRow, error) { + rows, err := q.db.QueryContext(ctx, getCategoryStats, createdAt) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetCategoryStatsRow + for rows.Next() { + var i GetCategoryStatsRow + if err := rows.Scan( + &i.Category, + &i.AllSales, + &i.HighValueSales, + &i.RevenueBulkOrders, + &i.AvgHighValue, + ); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getProductCategoryStats = `-- name: GetProductCategoryStats :many +SELECT + product_id, + category, + COUNT(*) as count, + SUM(amount) as total +FROM sales +GROUP BY product_id, category +ORDER BY product_id, total DESC; +` + +type GetProductCategoryStatsRow struct { + ProductID uint32 + Category string + Count uint64 + Total float64 +} + +func (q *Queries) GetProductCategoryStats(ctx context.Context) ([]GetProductCategoryStatsRow, error) { + rows, err := q.db.QueryContext(ctx, getProductCategoryStats) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetProductCategoryStatsRow + for rows.Next() { + var i GetProductCategoryStatsRow + if err := rows.Scan( + &i.ProductID, + &i.Category, + &i.Count, + &i.Total, + ); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getSalesStatistics = `-- name: GetSalesStatistics :many +SELECT + category, + COUNT(*) as total_sales, + SUM(amount) as total_revenue, + AVG(amount) as avg_amount, + MIN(amount) as min_amount, + MAX(amount) as max_amount, + SUM(quantity) as total_quantity +FROM sales +GROUP BY category +ORDER BY total_revenue DESC; + +` + +type GetSalesStatisticsRow struct { + Category string + TotalSales uint64 + TotalRevenue float64 + AvgAmount float64 + MinAmount float64 + MaxAmount float64 + TotalQuantity uint32 +} + +// Conditional aggregates +func (q *Queries) GetSalesStatistics(ctx context.Context) ([]GetSalesStatisticsRow, error) { + rows, err := q.db.QueryContext(ctx, getSalesStatistics) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetSalesStatisticsRow + for rows.Next() { + var i GetSalesStatisticsRow + if err := rows.Scan( + &i.Category, + &i.TotalSales, + &i.TotalRevenue, + &i.AvgAmount, + &i.MinAmount, + &i.MaxAmount, + &i.TotalQuantity, + ); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getTopCategories = `-- name: GetTopCategories :many +SELECT + category, + COUNT(*) as sale_count, + SUM(amount) as total_amount +FROM sales +GROUP BY category +ORDER BY total_amount DESC; + +` + +type GetTopCategoriesRow struct { + Category string + SaleCount uint64 + TotalAmount float64 +} + +// Multiple GROUP BY columns +func (q *Queries) GetTopCategories(ctx context.Context) ([]GetTopCategoriesRow, error) { + rows, err := q.db.QueryContext(ctx, getTopCategories) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetTopCategoriesRow + for rows.Next() { + var i GetTopCategoriesRow + if err := rows.Scan(&i.Category, &i.SaleCount, &i.TotalAmount); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} diff --git a/internal/endtoend/testdata/clickhouse_aggregates/query.sql b/internal/endtoend/testdata/clickhouse_aggregates/query.sql new file mode 100644 index 0000000000..094d7a215a --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_aggregates/query.sql @@ -0,0 +1,46 @@ +-- Basic aggregates +-- name: GetSalesStatistics :many +SELECT + category, + COUNT(*) as total_sales, + SUM(amount) as total_revenue, + AVG(amount) as avg_amount, + MIN(amount) as min_amount, + MAX(amount) as max_amount, + SUM(quantity) as total_quantity +FROM sales +GROUP BY category +ORDER BY total_revenue DESC; + +-- Conditional aggregates +-- name: GetCategoryStats :many +SELECT + category, + COUNT(*) as all_sales, + countIf(amount > 100) as high_value_sales, + sumIf(amount, quantity > 5) as revenue_bulk_orders, + avgIf(amount, amount > 50) as avg_high_value +FROM sales +WHERE created_at >= ? +GROUP BY category; + +-- HAVING clause +-- name: GetTopCategories :many +SELECT + category, + COUNT(*) as sale_count, + SUM(amount) as total_amount +FROM sales +GROUP BY category +ORDER BY total_amount DESC; + +-- Multiple GROUP BY columns +-- name: GetProductCategoryStats :many +SELECT + product_id, + category, + COUNT(*) as count, + SUM(amount) as total +FROM sales +GROUP BY product_id, category +ORDER BY product_id, total DESC; diff --git a/internal/endtoend/testdata/clickhouse_aggregates/schema.sql b/internal/endtoend/testdata/clickhouse_aggregates/schema.sql new file mode 100644 index 0000000000..ea7087bc41 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_aggregates/schema.sql @@ -0,0 +1,11 @@ +CREATE TABLE IF NOT EXISTS sales +( + id UInt32, + product_id UInt32, + category String, + amount Float64, + quantity UInt32, + created_at DateTime +) +ENGINE = MergeTree() +ORDER BY (id, created_at); diff --git a/internal/endtoend/testdata/clickhouse_aggregates/sqlc.json b/internal/endtoend/testdata/clickhouse_aggregates/sqlc.json new file mode 100644 index 0000000000..439f37f401 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_aggregates/sqlc.json @@ -0,0 +1,16 @@ +{ + "version": "2", + "sql": [ + { + "schema": "schema.sql", + "queries": "query.sql", + "engine": "clickhouse", + "gen": { + "go": { + "out": "go", + "package": "db" + } + } + } + ] +} diff --git a/internal/endtoend/testdata/clickhouse_cte/go/db.go b/internal/endtoend/testdata/clickhouse_cte/go/db.go new file mode 100644 index 0000000000..cd5bbb8e08 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_cte/go/db.go @@ -0,0 +1,31 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +import ( + "context" + "database/sql" +) + +type DBTX interface { + ExecContext(context.Context, string, ...interface{}) (sql.Result, error) + PrepareContext(context.Context, string) (*sql.Stmt, error) + QueryContext(context.Context, string, ...interface{}) (*sql.Rows, error) + QueryRowContext(context.Context, string, ...interface{}) *sql.Row +} + +func New(db DBTX) *Queries { + return &Queries{db: db} +} + +type Queries struct { + db DBTX +} + +func (q *Queries) WithTx(tx *sql.Tx) *Queries { + return &Queries{ + db: tx, + } +} diff --git a/internal/endtoend/testdata/clickhouse_cte/go/models.go b/internal/endtoend/testdata/clickhouse_cte/go/models.go new file mode 100644 index 0000000000..57b3c42a30 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_cte/go/models.go @@ -0,0 +1,16 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +import ( + "database/sql" +) + +type Employee struct { + ID uint32 + Name string + ManagerID sql.NullInt64 + Salary uint32 +} diff --git a/internal/endtoend/testdata/clickhouse_cte/go/query.sql.go b/internal/endtoend/testdata/clickhouse_cte/go/query.sql.go new file mode 100644 index 0000000000..fff09e87ef --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_cte/go/query.sql.go @@ -0,0 +1,84 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 +// source: query.sql + +package db + +import ( + "context" +) + +const getHighEarners = `-- name: GetHighEarners :many +WITH high_earners AS ( + SELECT id, name, salary FROM employees WHERE salary > ? +) +SELECT id, name, salary FROM high_earners ORDER BY salary DESC; +` + +type GetHighEarnersRow struct { + ID uint32 + Name string + Salary uint32 +} + +func (q *Queries) GetHighEarners(ctx context.Context, salary uint32) ([]GetHighEarnersRow, error) { + rows, err := q.db.QueryContext(ctx, getHighEarners, salary) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetHighEarnersRow + for rows.Next() { + var i GetHighEarnersRow + if err := rows.Scan(&i.ID, &i.Name, &i.Salary); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getMultipleCTEs = `-- name: GetMultipleCTEs :many +WITH emp_data AS ( + SELECT id, name, salary FROM employees +), +filtered AS ( + SELECT id, name, salary FROM emp_data WHERE salary > ? +) +SELECT id, name FROM filtered; +` + +type GetMultipleCTEsRow struct { + ID uint32 + Name string +} + +func (q *Queries) GetMultipleCTEs(ctx context.Context, salary uint32) ([]GetMultipleCTEsRow, error) { + rows, err := q.db.QueryContext(ctx, getMultipleCTEs, salary) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetMultipleCTEsRow + for rows.Next() { + var i GetMultipleCTEsRow + if err := rows.Scan(&i.ID, &i.Name); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} diff --git a/internal/endtoend/testdata/clickhouse_cte/query.sql b/internal/endtoend/testdata/clickhouse_cte/query.sql new file mode 100644 index 0000000000..271318560e --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_cte/query.sql @@ -0,0 +1,14 @@ +-- name: GetHighEarners :many +WITH high_earners AS ( + SELECT id, name, salary FROM employees WHERE salary > ? +) +SELECT id, name, salary FROM high_earners ORDER BY salary DESC; + +-- name: GetMultipleCTEs :many +WITH emp_data AS ( + SELECT id, name, salary FROM employees +), +filtered AS ( + SELECT id, name, salary FROM emp_data WHERE salary > ? +) +SELECT id, name FROM filtered; diff --git a/internal/endtoend/testdata/clickhouse_cte/schema.sql b/internal/endtoend/testdata/clickhouse_cte/schema.sql new file mode 100644 index 0000000000..215bcec36f --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_cte/schema.sql @@ -0,0 +1,9 @@ +CREATE TABLE IF NOT EXISTS employees +( + id UInt32, + name String, + manager_id Nullable(UInt32), + salary UInt32 +) +ENGINE = MergeTree() +ORDER BY id; diff --git a/internal/endtoend/testdata/clickhouse_cte/sqlc.json b/internal/endtoend/testdata/clickhouse_cte/sqlc.json new file mode 100644 index 0000000000..8c3f26ae8c --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_cte/sqlc.json @@ -0,0 +1,16 @@ +{ + "version": "2", + "sql": [ + { + "engine": "clickhouse", + "queries": "query.sql", + "schema": "schema.sql", + "gen": { + "go": { + "out": "go", + "package": "db" + } + } + } + ] +} diff --git a/internal/endtoend/testdata/clickhouse_exists/go/db.go b/internal/endtoend/testdata/clickhouse_exists/go/db.go new file mode 100644 index 0000000000..cd5bbb8e08 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_exists/go/db.go @@ -0,0 +1,31 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +import ( + "context" + "database/sql" +) + +type DBTX interface { + ExecContext(context.Context, string, ...interface{}) (sql.Result, error) + PrepareContext(context.Context, string) (*sql.Stmt, error) + QueryContext(context.Context, string, ...interface{}) (*sql.Rows, error) + QueryRowContext(context.Context, string, ...interface{}) *sql.Row +} + +func New(db DBTX) *Queries { + return &Queries{db: db} +} + +type Queries struct { + db DBTX +} + +func (q *Queries) WithTx(tx *sql.Tx) *Queries { + return &Queries{ + db: tx, + } +} diff --git a/internal/endtoend/testdata/clickhouse_exists/go/models.go b/internal/endtoend/testdata/clickhouse_exists/go/models.go new file mode 100644 index 0000000000..f0af642fa7 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_exists/go/models.go @@ -0,0 +1,15 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +type Profile struct { + UserID uint32 + Bio string +} + +type User struct { + ID uint32 + Name string +} diff --git a/internal/endtoend/testdata/clickhouse_exists/go/query.sql.go b/internal/endtoend/testdata/clickhouse_exists/go/query.sql.go new file mode 100644 index 0000000000..736f27db01 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_exists/go/query.sql.go @@ -0,0 +1,64 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 +// source: query.sql + +package db + +import ( + "context" +) + +const getUsersWithProfiles = `-- name: GetUsersWithProfiles :many +SELECT id, name FROM users WHERE EXISTS (SELECT 1 FROM profiles WHERE profiles.user_id = users.id); +` + +func (q *Queries) GetUsersWithProfiles(ctx context.Context) ([]User, error) { + rows, err := q.db.QueryContext(ctx, getUsersWithProfiles) + if err != nil { + return nil, err + } + defer rows.Close() + var items []User + for rows.Next() { + var i User + if err := rows.Scan(&i.ID, &i.Name); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getUsersWithoutProfiles = `-- name: GetUsersWithoutProfiles :many +SELECT id, name FROM users WHERE NOT EXISTS (SELECT 1 FROM profiles WHERE profiles.user_id = users.id); +` + +func (q *Queries) GetUsersWithoutProfiles(ctx context.Context) ([]User, error) { + rows, err := q.db.QueryContext(ctx, getUsersWithoutProfiles) + if err != nil { + return nil, err + } + defer rows.Close() + var items []User + for rows.Next() { + var i User + if err := rows.Scan(&i.ID, &i.Name); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} diff --git a/internal/endtoend/testdata/clickhouse_exists/query.sql b/internal/endtoend/testdata/clickhouse_exists/query.sql new file mode 100644 index 0000000000..fea429dbb1 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_exists/query.sql @@ -0,0 +1,5 @@ +-- name: GetUsersWithProfiles :many +SELECT id, name FROM users WHERE EXISTS (SELECT 1 FROM profiles WHERE profiles.user_id = users.id); + +-- name: GetUsersWithoutProfiles :many +SELECT id, name FROM users WHERE NOT EXISTS (SELECT 1 FROM profiles WHERE profiles.user_id = users.id); diff --git a/internal/endtoend/testdata/clickhouse_exists/schema.sql b/internal/endtoend/testdata/clickhouse_exists/schema.sql new file mode 100644 index 0000000000..06ccf5d830 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_exists/schema.sql @@ -0,0 +1,15 @@ +CREATE TABLE IF NOT EXISTS users +( + id UInt32, + name String +) +ENGINE = MergeTree() +ORDER BY id; + +CREATE TABLE IF NOT EXISTS profiles +( + user_id UInt32, + bio String +) +ENGINE = MergeTree() +ORDER BY user_id; diff --git a/internal/endtoend/testdata/clickhouse_exists/sqlc.json b/internal/endtoend/testdata/clickhouse_exists/sqlc.json new file mode 100644 index 0000000000..8c3f26ae8c --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_exists/sqlc.json @@ -0,0 +1,16 @@ +{ + "version": "2", + "sql": [ + { + "engine": "clickhouse", + "queries": "query.sql", + "schema": "schema.sql", + "gen": { + "go": { + "out": "go", + "package": "db" + } + } + } + ] +} diff --git a/internal/endtoend/testdata/clickhouse_having/go/db.go b/internal/endtoend/testdata/clickhouse_having/go/db.go new file mode 100644 index 0000000000..cd5bbb8e08 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_having/go/db.go @@ -0,0 +1,31 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +import ( + "context" + "database/sql" +) + +type DBTX interface { + ExecContext(context.Context, string, ...interface{}) (sql.Result, error) + PrepareContext(context.Context, string) (*sql.Stmt, error) + QueryContext(context.Context, string, ...interface{}) (*sql.Rows, error) + QueryRowContext(context.Context, string, ...interface{}) *sql.Row +} + +func New(db DBTX) *Queries { + return &Queries{db: db} +} + +type Queries struct { + db DBTX +} + +func (q *Queries) WithTx(tx *sql.Tx) *Queries { + return &Queries{ + db: tx, + } +} diff --git a/internal/endtoend/testdata/clickhouse_having/go/models.go b/internal/endtoend/testdata/clickhouse_having/go/models.go new file mode 100644 index 0000000000..bd7b67bc3b --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_having/go/models.go @@ -0,0 +1,12 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +type Sale struct { + ID uint32 + Region string + Amount float32 + Year uint32 +} diff --git a/internal/endtoend/testdata/clickhouse_having/go/query.sql.go b/internal/endtoend/testdata/clickhouse_having/go/query.sql.go new file mode 100644 index 0000000000..50ff6fe16b --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_having/go/query.sql.go @@ -0,0 +1,106 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 +// source: query.sql + +package db + +import ( + "context" +) + +const getAverageSalesByRegion = `-- name: GetAverageSalesByRegion :many +SELECT region, avg(amount) AS avg_sale FROM sales GROUP BY region HAVING avg(amount) > ?; +` + +type GetAverageSalesByRegionRow struct { + Region string + AvgSale float64 +} + +func (q *Queries) GetAverageSalesByRegion(ctx context.Context, amount float32) ([]GetAverageSalesByRegionRow, error) { + rows, err := q.db.QueryContext(ctx, getAverageSalesByRegion, amount) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetAverageSalesByRegionRow + for rows.Next() { + var i GetAverageSalesByRegionRow + if err := rows.Scan(&i.Region, &i.AvgSale); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getRegionSalesAboveThreshold = `-- name: GetRegionSalesAboveThreshold :many +SELECT region, sum(amount) AS total_sales FROM sales GROUP BY region HAVING sum(amount) > ?; +` + +type GetRegionSalesAboveThresholdRow struct { + Region string + TotalSales float32 +} + +func (q *Queries) GetRegionSalesAboveThreshold(ctx context.Context, amount float32) ([]GetRegionSalesAboveThresholdRow, error) { + rows, err := q.db.QueryContext(ctx, getRegionSalesAboveThreshold, amount) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetRegionSalesAboveThresholdRow + for rows.Next() { + var i GetRegionSalesAboveThresholdRow + if err := rows.Scan(&i.Region, &i.TotalSales); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getRegionSalesCount = `-- name: GetRegionSalesCount :many +SELECT region, count(id) AS transaction_count FROM sales GROUP BY region HAVING count(id) > ?; +` + +type GetRegionSalesCountRow struct { + Region string + TransactionCount uint64 +} + +func (q *Queries) GetRegionSalesCount(ctx context.Context, id uint32) ([]GetRegionSalesCountRow, error) { + rows, err := q.db.QueryContext(ctx, getRegionSalesCount, id) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetRegionSalesCountRow + for rows.Next() { + var i GetRegionSalesCountRow + if err := rows.Scan(&i.Region, &i.TransactionCount); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} diff --git a/internal/endtoend/testdata/clickhouse_having/query.sql b/internal/endtoend/testdata/clickhouse_having/query.sql new file mode 100644 index 0000000000..529b8b8c52 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_having/query.sql @@ -0,0 +1,8 @@ +-- name: GetRegionSalesAboveThreshold :many +SELECT region, sum(amount) AS total_sales FROM sales GROUP BY region HAVING sum(amount) > ?; + +-- name: GetRegionSalesCount :many +SELECT region, count(id) AS transaction_count FROM sales GROUP BY region HAVING count(id) > ?; + +-- name: GetAverageSalesByRegion :many +SELECT region, avg(amount) AS avg_sale FROM sales GROUP BY region HAVING avg(amount) > ?; diff --git a/internal/endtoend/testdata/clickhouse_having/schema.sql b/internal/endtoend/testdata/clickhouse_having/schema.sql new file mode 100644 index 0000000000..9cd47b84d1 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_having/schema.sql @@ -0,0 +1,9 @@ +CREATE TABLE IF NOT EXISTS sales +( + id UInt32, + region String, + amount Float32, + year UInt32 +) +ENGINE = MergeTree() +ORDER BY id; diff --git a/internal/endtoend/testdata/clickhouse_having/sqlc.json b/internal/endtoend/testdata/clickhouse_having/sqlc.json new file mode 100644 index 0000000000..8c3f26ae8c --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_having/sqlc.json @@ -0,0 +1,16 @@ +{ + "version": "2", + "sql": [ + { + "engine": "clickhouse", + "queries": "query.sql", + "schema": "schema.sql", + "gen": { + "go": { + "out": "go", + "package": "db" + } + } + } + ] +} diff --git a/internal/endtoend/testdata/clickhouse_implicit_join/go/db.go b/internal/endtoend/testdata/clickhouse_implicit_join/go/db.go new file mode 100644 index 0000000000..cd5bbb8e08 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_implicit_join/go/db.go @@ -0,0 +1,31 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +import ( + "context" + "database/sql" +) + +type DBTX interface { + ExecContext(context.Context, string, ...interface{}) (sql.Result, error) + PrepareContext(context.Context, string) (*sql.Stmt, error) + QueryContext(context.Context, string, ...interface{}) (*sql.Rows, error) + QueryRowContext(context.Context, string, ...interface{}) *sql.Row +} + +func New(db DBTX) *Queries { + return &Queries{db: db} +} + +type Queries struct { + db DBTX +} + +func (q *Queries) WithTx(tx *sql.Tx) *Queries { + return &Queries{ + db: tx, + } +} diff --git a/internal/endtoend/testdata/clickhouse_implicit_join/go/models.go b/internal/endtoend/testdata/clickhouse_implicit_join/go/models.go new file mode 100644 index 0000000000..c57f89488d --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_implicit_join/go/models.go @@ -0,0 +1,17 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +type Customer struct { + ID uint32 + Name string + City string +} + +type Order struct { + ID uint32 + CustomerID uint32 + Amount float32 +} diff --git a/internal/endtoend/testdata/clickhouse_implicit_join/go/query.sql.go b/internal/endtoend/testdata/clickhouse_implicit_join/go/query.sql.go new file mode 100644 index 0000000000..dd25a47cf7 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_implicit_join/go/query.sql.go @@ -0,0 +1,75 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 +// source: query.sql + +package db + +import ( + "context" +) + +const getCustomerOrders = `-- name: GetCustomerOrders :many +SELECT c.name, o.amount FROM customers c, orders o WHERE c.id = o.customer_id; +` + +type GetCustomerOrdersRow struct { + Name string + Amount float32 +} + +func (q *Queries) GetCustomerOrders(ctx context.Context) ([]GetCustomerOrdersRow, error) { + rows, err := q.db.QueryContext(ctx, getCustomerOrders) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetCustomerOrdersRow + for rows.Next() { + var i GetCustomerOrdersRow + if err := rows.Scan(&i.Name, &i.Amount); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getCustomerOrdersByCity = `-- name: GetCustomerOrdersByCity :many +SELECT c.name, c.city, o.amount FROM customers c, orders o WHERE c.id = o.customer_id AND c.city = ?; +` + +type GetCustomerOrdersByCityRow struct { + Name string + City string + Amount float32 +} + +func (q *Queries) GetCustomerOrdersByCity(ctx context.Context, city string) ([]GetCustomerOrdersByCityRow, error) { + rows, err := q.db.QueryContext(ctx, getCustomerOrdersByCity, city) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetCustomerOrdersByCityRow + for rows.Next() { + var i GetCustomerOrdersByCityRow + if err := rows.Scan(&i.Name, &i.City, &i.Amount); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} diff --git a/internal/endtoend/testdata/clickhouse_implicit_join/query.sql b/internal/endtoend/testdata/clickhouse_implicit_join/query.sql new file mode 100644 index 0000000000..907e8475e5 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_implicit_join/query.sql @@ -0,0 +1,5 @@ +-- name: GetCustomerOrders :many +SELECT c.name, o.amount FROM customers c, orders o WHERE c.id = o.customer_id; + +-- name: GetCustomerOrdersByCity :many +SELECT c.name, c.city, o.amount FROM customers c, orders o WHERE c.id = o.customer_id AND c.city = ?; diff --git a/internal/endtoend/testdata/clickhouse_implicit_join/schema.sql b/internal/endtoend/testdata/clickhouse_implicit_join/schema.sql new file mode 100644 index 0000000000..1c7b19eee1 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_implicit_join/schema.sql @@ -0,0 +1,17 @@ +CREATE TABLE IF NOT EXISTS customers +( + id UInt32, + name String, + city String +) +ENGINE = MergeTree() +ORDER BY id; + +CREATE TABLE IF NOT EXISTS orders +( + id UInt32, + customer_id UInt32, + amount Float32 +) +ENGINE = MergeTree() +ORDER BY id; diff --git a/internal/endtoend/testdata/clickhouse_implicit_join/sqlc.json b/internal/endtoend/testdata/clickhouse_implicit_join/sqlc.json new file mode 100644 index 0000000000..8c3f26ae8c --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_implicit_join/sqlc.json @@ -0,0 +1,16 @@ +{ + "version": "2", + "sql": [ + { + "engine": "clickhouse", + "queries": "query.sql", + "schema": "schema.sql", + "gen": { + "go": { + "out": "go", + "package": "db" + } + } + } + ] +} diff --git a/internal/endtoend/testdata/clickhouse_in_subquery/go/db.go b/internal/endtoend/testdata/clickhouse_in_subquery/go/db.go new file mode 100644 index 0000000000..cd5bbb8e08 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_in_subquery/go/db.go @@ -0,0 +1,31 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +import ( + "context" + "database/sql" +) + +type DBTX interface { + ExecContext(context.Context, string, ...interface{}) (sql.Result, error) + PrepareContext(context.Context, string) (*sql.Stmt, error) + QueryContext(context.Context, string, ...interface{}) (*sql.Rows, error) + QueryRowContext(context.Context, string, ...interface{}) *sql.Row +} + +func New(db DBTX) *Queries { + return &Queries{db: db} +} + +type Queries struct { + db DBTX +} + +func (q *Queries) WithTx(tx *sql.Tx) *Queries { + return &Queries{ + db: tx, + } +} diff --git a/internal/endtoend/testdata/clickhouse_in_subquery/go/models.go b/internal/endtoend/testdata/clickhouse_in_subquery/go/models.go new file mode 100644 index 0000000000..acf614e0ad --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_in_subquery/go/models.go @@ -0,0 +1,16 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +type Department struct { + ID uint32 + Name string +} + +type User struct { + ID uint32 + Name string + DepartmentID uint32 +} diff --git a/internal/endtoend/testdata/clickhouse_in_subquery/go/query.sql.go b/internal/endtoend/testdata/clickhouse_in_subquery/go/query.sql.go new file mode 100644 index 0000000000..340d8fec8d --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_in_subquery/go/query.sql.go @@ -0,0 +1,112 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 +// source: query.sql + +package db + +import ( + "context" +) + +const getUsersInDepartments = `-- name: GetUsersInDepartments :many +SELECT id, name FROM users WHERE department_id IN (SELECT id FROM departments WHERE name = ?); +` + +type GetUsersInDepartmentsRow struct { + ID uint32 + Name string +} + +func (q *Queries) GetUsersInDepartments(ctx context.Context) ([]GetUsersInDepartmentsRow, error) { + rows, err := q.db.QueryContext(ctx, getUsersInDepartments) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetUsersInDepartmentsRow + for rows.Next() { + var i GetUsersInDepartmentsRow + if err := rows.Scan(&i.ID, &i.Name); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getUsersNotInDepartments = `-- name: GetUsersNotInDepartments :many +SELECT id, name FROM users WHERE department_id NOT IN (SELECT id FROM departments WHERE name IN (?, ?)); +` + +type GetUsersNotInDepartmentsRow struct { + ID uint32 + Name string +} + +func (q *Queries) GetUsersNotInDepartments(ctx context.Context) ([]GetUsersNotInDepartmentsRow, error) { + rows, err := q.db.QueryContext(ctx, getUsersNotInDepartments) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetUsersNotInDepartmentsRow + for rows.Next() { + var i GetUsersNotInDepartmentsRow + if err := rows.Scan(&i.ID, &i.Name); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getUsersWithIds = `-- name: GetUsersWithIds :many +SELECT id, name FROM users WHERE id IN (?, ?, ?); +` + +type GetUsersWithIdsParams struct { + ID uint32 + ID_2 uint32 + ID_3 uint32 +} + +type GetUsersWithIdsRow struct { + ID uint32 + Name string +} + +func (q *Queries) GetUsersWithIds(ctx context.Context, arg GetUsersWithIdsParams) ([]GetUsersWithIdsRow, error) { + rows, err := q.db.QueryContext(ctx, getUsersWithIds, arg.ID, arg.ID_2, arg.ID_3) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetUsersWithIdsRow + for rows.Next() { + var i GetUsersWithIdsRow + if err := rows.Scan(&i.ID, &i.Name); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} diff --git a/internal/endtoend/testdata/clickhouse_in_subquery/query.sql b/internal/endtoend/testdata/clickhouse_in_subquery/query.sql new file mode 100644 index 0000000000..4dd806adc7 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_in_subquery/query.sql @@ -0,0 +1,8 @@ +-- name: GetUsersInDepartments :many +SELECT id, name FROM users WHERE department_id IN (SELECT id FROM departments WHERE name = ?); + +-- name: GetUsersNotInDepartments :many +SELECT id, name FROM users WHERE department_id NOT IN (SELECT id FROM departments WHERE name IN (?, ?)); + +-- name: GetUsersWithIds :many +SELECT id, name FROM users WHERE id IN (?, ?, ?); diff --git a/internal/endtoend/testdata/clickhouse_in_subquery/schema.sql b/internal/endtoend/testdata/clickhouse_in_subquery/schema.sql new file mode 100644 index 0000000000..151937ffbe --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_in_subquery/schema.sql @@ -0,0 +1,16 @@ +CREATE TABLE IF NOT EXISTS users +( + id UInt32, + name String, + department_id UInt32 +) +ENGINE = MergeTree() +ORDER BY id; + +CREATE TABLE IF NOT EXISTS departments +( + id UInt32, + name String +) +ENGINE = MergeTree() +ORDER BY id; diff --git a/internal/endtoend/testdata/clickhouse_in_subquery/sqlc.json b/internal/endtoend/testdata/clickhouse_in_subquery/sqlc.json new file mode 100644 index 0000000000..8c3f26ae8c --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_in_subquery/sqlc.json @@ -0,0 +1,16 @@ +{ + "version": "2", + "sql": [ + { + "engine": "clickhouse", + "queries": "query.sql", + "schema": "schema.sql", + "gen": { + "go": { + "out": "go", + "package": "db" + } + } + } + ] +} diff --git a/internal/endtoend/testdata/clickhouse_joins/go/db.go b/internal/endtoend/testdata/clickhouse_joins/go/db.go new file mode 100644 index 0000000000..cd5bbb8e08 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_joins/go/db.go @@ -0,0 +1,31 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +import ( + "context" + "database/sql" +) + +type DBTX interface { + ExecContext(context.Context, string, ...interface{}) (sql.Result, error) + PrepareContext(context.Context, string) (*sql.Stmt, error) + QueryContext(context.Context, string, ...interface{}) (*sql.Rows, error) + QueryRowContext(context.Context, string, ...interface{}) *sql.Row +} + +func New(db DBTX) *Queries { + return &Queries{db: db} +} + +type Queries struct { + db DBTX +} + +func (q *Queries) WithTx(tx *sql.Tx) *Queries { + return &Queries{ + db: tx, + } +} diff --git a/internal/endtoend/testdata/clickhouse_joins/go/models.go b/internal/endtoend/testdata/clickhouse_joins/go/models.go new file mode 100644 index 0000000000..6e89eccdb7 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_joins/go/models.go @@ -0,0 +1,28 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +import ( + "time" +) + +type Department struct { + ID uint32 + Name string + Location string +} + +type Order struct { + ID uint32 + UserID uint32 + Amount float64 + CreatedAt time.Time +} + +type User struct { + ID uint32 + Name string + DepartmentID uint32 +} diff --git a/internal/endtoend/testdata/clickhouse_joins/go/query.sql.go b/internal/endtoend/testdata/clickhouse_joins/go/query.sql.go new file mode 100644 index 0000000000..749fe79148 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_joins/go/query.sql.go @@ -0,0 +1,187 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 +// source: query.sql + +package db + +import ( + "context" + "database/sql" +) + +const getCompleteOrderInfo = `-- name: GetCompleteOrderInfo :one +SELECT + o.id, + o.amount, + u.id as user_id, + u.name as user_name, + d.id as department_id, + d.name as department_name +FROM orders o +INNER JOIN users u ON o.user_id = u.id +INNER JOIN departments d ON u.department_id = d.id +WHERE o.id = ?; + +` + +type GetCompleteOrderInfoRow struct { + ID uint32 + Amount float64 + UserID uint32 + UserName string + DepartmentID uint32 + DepartmentName string +} + +// RIGHT JOIN +func (q *Queries) GetCompleteOrderInfo(ctx context.Context, id uint32) (GetCompleteOrderInfoRow, error) { + row := q.db.QueryRowContext(ctx, getCompleteOrderInfo, id) + var i GetCompleteOrderInfoRow + err := row.Scan( + &i.ID, + &i.Amount, + &i.UserID, + &i.UserName, + &i.DepartmentID, + &i.DepartmentName, + ) + return i, err +} + +const getDepartmentsWithUsers = `-- name: GetDepartmentsWithUsers :many +SELECT + d.id, + d.name, + COUNT(u.id) as user_count +FROM departments d +RIGHT JOIN users u ON d.id = u.department_id +GROUP BY d.id, d.name +ORDER BY user_count DESC; +` + +type GetDepartmentsWithUsersRow struct { + ID sql.NullInt64 + Name sql.NullString + UserCount uint64 +} + +func (q *Queries) GetDepartmentsWithUsers(ctx context.Context) ([]GetDepartmentsWithUsersRow, error) { + rows, err := q.db.QueryContext(ctx, getDepartmentsWithUsers) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetDepartmentsWithUsersRow + for rows.Next() { + var i GetDepartmentsWithUsersRow + if err := rows.Scan(&i.ID, &i.Name, &i.UserCount); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getUserOrders = `-- name: GetUserOrders :many +SELECT + u.id, + u.name, + o.id as order_id, + o.amount +FROM users u +LEFT JOIN orders o ON u.id = o.user_id +WHERE u.id = ? +ORDER BY o.created_at DESC; + +` + +type GetUserOrdersRow struct { + ID uint32 + Name string + OrderID sql.NullInt64 + Amount sql.NullFloat64 +} + +// Multiple JOINs +func (q *Queries) GetUserOrders(ctx context.Context, id uint32) ([]GetUserOrdersRow, error) { + rows, err := q.db.QueryContext(ctx, getUserOrders, id) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetUserOrdersRow + for rows.Next() { + var i GetUserOrdersRow + if err := rows.Scan( + &i.ID, + &i.Name, + &i.OrderID, + &i.Amount, + ); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getUserWithDepartment = `-- name: GetUserWithDepartment :many +SELECT + u.id, + u.name, + d.id as department_id, + d.name as department_name +FROM users u +INNER JOIN departments d ON u.department_id = d.id +ORDER BY u.id; + +` + +type GetUserWithDepartmentRow struct { + ID uint32 + Name string + DepartmentID uint32 + DepartmentName string +} + +// LEFT JOIN +func (q *Queries) GetUserWithDepartment(ctx context.Context) ([]GetUserWithDepartmentRow, error) { + rows, err := q.db.QueryContext(ctx, getUserWithDepartment) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetUserWithDepartmentRow + for rows.Next() { + var i GetUserWithDepartmentRow + if err := rows.Scan( + &i.ID, + &i.Name, + &i.DepartmentID, + &i.DepartmentName, + ); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} diff --git a/internal/endtoend/testdata/clickhouse_joins/query.sql b/internal/endtoend/testdata/clickhouse_joins/query.sql new file mode 100644 index 0000000000..e078a63927 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_joins/query.sql @@ -0,0 +1,47 @@ +-- INNER JOIN +-- name: GetUserWithDepartment :many +SELECT + u.id, + u.name, + d.id as department_id, + d.name as department_name +FROM users u +INNER JOIN departments d ON u.department_id = d.id +ORDER BY u.id; + +-- LEFT JOIN +-- name: GetUserOrders :many +SELECT + u.id, + u.name, + o.id as order_id, + o.amount +FROM users u +LEFT JOIN orders o ON u.id = o.user_id +WHERE u.id = ? +ORDER BY o.created_at DESC; + +-- Multiple JOINs +-- name: GetCompleteOrderInfo :one +SELECT + o.id, + o.amount, + u.id as user_id, + u.name as user_name, + d.id as department_id, + d.name as department_name +FROM orders o +INNER JOIN users u ON o.user_id = u.id +INNER JOIN departments d ON u.department_id = d.id +WHERE o.id = ?; + +-- RIGHT JOIN +-- name: GetDepartmentsWithUsers :many +SELECT + d.id, + d.name, + COUNT(u.id) as user_count +FROM departments d +RIGHT JOIN users u ON d.id = u.department_id +GROUP BY d.id, d.name +ORDER BY user_count DESC; diff --git a/internal/endtoend/testdata/clickhouse_joins/schema.sql b/internal/endtoend/testdata/clickhouse_joins/schema.sql new file mode 100644 index 0000000000..e3d5c350a0 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_joins/schema.sql @@ -0,0 +1,27 @@ +CREATE TABLE IF NOT EXISTS users +( + id UInt32, + name String, + department_id UInt32 +) +ENGINE = MergeTree() +ORDER BY id; + +CREATE TABLE IF NOT EXISTS departments +( + id UInt32, + name String, + location String +) +ENGINE = MergeTree() +ORDER BY id; + +CREATE TABLE IF NOT EXISTS orders +( + id UInt32, + user_id UInt32, + amount Float64, + created_at DateTime +) +ENGINE = MergeTree() +ORDER BY (id, user_id); diff --git a/internal/endtoend/testdata/clickhouse_joins/sqlc.json b/internal/endtoend/testdata/clickhouse_joins/sqlc.json new file mode 100644 index 0000000000..439f37f401 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_joins/sqlc.json @@ -0,0 +1,16 @@ +{ + "version": "2", + "sql": [ + { + "schema": "schema.sql", + "queries": "query.sql", + "engine": "clickhouse", + "gen": { + "go": { + "out": "go", + "package": "db" + } + } + } + ] +} diff --git a/internal/endtoend/testdata/clickhouse_subqueries/go/db.go b/internal/endtoend/testdata/clickhouse_subqueries/go/db.go new file mode 100644 index 0000000000..cd5bbb8e08 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_subqueries/go/db.go @@ -0,0 +1,31 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +import ( + "context" + "database/sql" +) + +type DBTX interface { + ExecContext(context.Context, string, ...interface{}) (sql.Result, error) + PrepareContext(context.Context, string) (*sql.Stmt, error) + QueryContext(context.Context, string, ...interface{}) (*sql.Rows, error) + QueryRowContext(context.Context, string, ...interface{}) *sql.Row +} + +func New(db DBTX) *Queries { + return &Queries{db: db} +} + +type Queries struct { + db DBTX +} + +func (q *Queries) WithTx(tx *sql.Tx) *Queries { + return &Queries{ + db: tx, + } +} diff --git a/internal/endtoend/testdata/clickhouse_subqueries/go/models.go b/internal/endtoend/testdata/clickhouse_subqueries/go/models.go new file mode 100644 index 0000000000..c0288e5ebc --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_subqueries/go/models.go @@ -0,0 +1,24 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +import ( + "time" +) + +type Employee struct { + ID uint32 + Name string + Salary float64 + Department string + HireDate time.Time +} + +type SalariesHistory struct { + ID uint32 + EmployeeID uint32 + Salary float64 + EffectiveDate time.Time +} diff --git a/internal/endtoend/testdata/clickhouse_subqueries/go/query.sql.go b/internal/endtoend/testdata/clickhouse_subqueries/go/query.sql.go new file mode 100644 index 0000000000..bb46e8a290 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_subqueries/go/query.sql.go @@ -0,0 +1,94 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 +// source: query.sql + +package db + +import ( + "context" +) + +const getAllEmployees = `-- name: GetAllEmployees :many +SELECT + id, + name, + salary, + department +FROM employees +ORDER BY id; +` + +type GetAllEmployeesRow struct { + ID uint32 + Name string + Salary float64 + Department string +} + +func (q *Queries) GetAllEmployees(ctx context.Context) ([]GetAllEmployeesRow, error) { + rows, err := q.db.QueryContext(ctx, getAllEmployees) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetAllEmployeesRow + for rows.Next() { + var i GetAllEmployeesRow + if err := rows.Scan( + &i.ID, + &i.Name, + &i.Salary, + &i.Department, + ); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getEmployeesByDepartment = `-- name: GetEmployeesByDepartment :many +SELECT + id, + name, + salary +FROM employees +WHERE department = ? +ORDER BY salary DESC; +` + +type GetEmployeesByDepartmentRow struct { + ID uint32 + Name string + Salary float64 +} + +func (q *Queries) GetEmployeesByDepartment(ctx context.Context, department string) ([]GetEmployeesByDepartmentRow, error) { + rows, err := q.db.QueryContext(ctx, getEmployeesByDepartment, department) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetEmployeesByDepartmentRow + for rows.Next() { + var i GetEmployeesByDepartmentRow + if err := rows.Scan(&i.ID, &i.Name, &i.Salary); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} diff --git a/internal/endtoend/testdata/clickhouse_subqueries/query.sql b/internal/endtoend/testdata/clickhouse_subqueries/query.sql new file mode 100644 index 0000000000..33aa438306 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_subqueries/query.sql @@ -0,0 +1,18 @@ +-- Simple queries on employees table +-- name: GetAllEmployees :many +SELECT + id, + name, + salary, + department +FROM employees +ORDER BY id; + +-- name: GetEmployeesByDepartment :many +SELECT + id, + name, + salary +FROM employees +WHERE department = ? +ORDER BY salary DESC; diff --git a/internal/endtoend/testdata/clickhouse_subqueries/schema.sql b/internal/endtoend/testdata/clickhouse_subqueries/schema.sql new file mode 100644 index 0000000000..1a24c2ce2f --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_subqueries/schema.sql @@ -0,0 +1,20 @@ +CREATE TABLE IF NOT EXISTS employees +( + id UInt32, + name String, + salary Float64, + department String, + hire_date DateTime +) +ENGINE = MergeTree() +ORDER BY id; + +CREATE TABLE IF NOT EXISTS salaries_history +( + id UInt32, + employee_id UInt32, + salary Float64, + effective_date DateTime +) +ENGINE = MergeTree() +ORDER BY (id, employee_id, effective_date); diff --git a/internal/endtoend/testdata/clickhouse_subqueries/sqlc.json b/internal/endtoend/testdata/clickhouse_subqueries/sqlc.json new file mode 100644 index 0000000000..439f37f401 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_subqueries/sqlc.json @@ -0,0 +1,16 @@ +{ + "version": "2", + "sql": [ + { + "schema": "schema.sql", + "queries": "query.sql", + "engine": "clickhouse", + "gen": { + "go": { + "out": "go", + "package": "db" + } + } + } + ] +} From 00ce8b795a921c040dea9d087550f24ba59fa0b8 Mon Sep 17 00:00:00 2001 From: Miguel Eduardo Gil Biraud Date: Sat, 6 Dec 2025 14:54:51 +0000 Subject: [PATCH 13/13] Add end-to-end tests for ClickHouse types and functions Tests for type handling and built-in functions: array types, type casting, string/math functions, named parameters, DELETE/UPDATE statements, and advanced feature combinations. Includes test runner integration updates. Final comprehensive validation of ClickHouse engine support. --- internal/endtoend/ddl_test.go | 2 + internal/endtoend/endtoend_test.go | 19 +- .../testdata/clickhouse_advanced/go/db.go | 31 ++ .../testdata/clickhouse_advanced/go/models.go | 24 ++ .../clickhouse_advanced/go/query.sql.go | 112 +++++ .../testdata/clickhouse_advanced/query.sql | 26 ++ .../testdata/clickhouse_advanced/schema.sql | 20 + .../testdata/clickhouse_advanced/sqlc.json | 16 + .../testdata/clickhouse_arrays/go/db.go | 31 ++ .../testdata/clickhouse_arrays/go/models.go | 23 + .../clickhouse_arrays/go/query.sql.go | 96 +++++ .../testdata/clickhouse_arrays/query.sql | 19 + .../testdata/clickhouse_arrays/schema.sql | 22 + .../testdata/clickhouse_arrays/sqlc.json | 16 + .../testdata/clickhouse_cast/go/db.go | 31 ++ .../testdata/clickhouse_cast/go/models.go | 12 + .../testdata/clickhouse_cast/go/query.sql.go | 140 +++++++ .../testdata/clickhouse_cast/query.sql | 11 + .../testdata/clickhouse_cast/schema.sql | 9 + .../testdata/clickhouse_cast/sqlc.json | 16 + .../clickhouse_delete_update/go/db.go | 31 ++ .../clickhouse_delete_update/go/models.go | 16 + .../clickhouse_delete_update/go/query.sql.go | 37 ++ .../clickhouse_delete_update/query.sql | 8 + .../clickhouse_delete_update/schema.sql | 9 + .../clickhouse_delete_update/sqlc.json | 16 + .../testdata/clickhouse_functions/go/db.go | 31 ++ .../clickhouse_functions/go/models.go | 27 ++ .../clickhouse_functions/go/query.sql.go | 392 ++++++++++++++++++ .../testdata/clickhouse_functions/query.sql | 94 +++++ .../testdata/clickhouse_functions/schema.sql | 22 + .../testdata/clickhouse_functions/sqlc.json | 16 + .../testdata/clickhouse_named_params/go/db.go | 31 ++ .../clickhouse_named_params/go/models.go | 11 + .../clickhouse_named_params/go/query.sql.go | 74 ++++ .../clickhouse_named_params/query.sql | 8 + .../clickhouse_named_params/schema.sql | 8 + .../clickhouse_named_params/sqlc.json | 16 + 38 files changed, 1522 insertions(+), 1 deletion(-) create mode 100644 internal/endtoend/testdata/clickhouse_advanced/go/db.go create mode 100644 internal/endtoend/testdata/clickhouse_advanced/go/models.go create mode 100644 internal/endtoend/testdata/clickhouse_advanced/go/query.sql.go create mode 100644 internal/endtoend/testdata/clickhouse_advanced/query.sql create mode 100644 internal/endtoend/testdata/clickhouse_advanced/schema.sql create mode 100644 internal/endtoend/testdata/clickhouse_advanced/sqlc.json create mode 100644 internal/endtoend/testdata/clickhouse_arrays/go/db.go create mode 100644 internal/endtoend/testdata/clickhouse_arrays/go/models.go create mode 100644 internal/endtoend/testdata/clickhouse_arrays/go/query.sql.go create mode 100644 internal/endtoend/testdata/clickhouse_arrays/query.sql create mode 100644 internal/endtoend/testdata/clickhouse_arrays/schema.sql create mode 100644 internal/endtoend/testdata/clickhouse_arrays/sqlc.json create mode 100644 internal/endtoend/testdata/clickhouse_cast/go/db.go create mode 100644 internal/endtoend/testdata/clickhouse_cast/go/models.go create mode 100644 internal/endtoend/testdata/clickhouse_cast/go/query.sql.go create mode 100644 internal/endtoend/testdata/clickhouse_cast/query.sql create mode 100644 internal/endtoend/testdata/clickhouse_cast/schema.sql create mode 100644 internal/endtoend/testdata/clickhouse_cast/sqlc.json create mode 100644 internal/endtoend/testdata/clickhouse_delete_update/go/db.go create mode 100644 internal/endtoend/testdata/clickhouse_delete_update/go/models.go create mode 100644 internal/endtoend/testdata/clickhouse_delete_update/go/query.sql.go create mode 100644 internal/endtoend/testdata/clickhouse_delete_update/query.sql create mode 100644 internal/endtoend/testdata/clickhouse_delete_update/schema.sql create mode 100644 internal/endtoend/testdata/clickhouse_delete_update/sqlc.json create mode 100644 internal/endtoend/testdata/clickhouse_functions/go/db.go create mode 100644 internal/endtoend/testdata/clickhouse_functions/go/models.go create mode 100644 internal/endtoend/testdata/clickhouse_functions/go/query.sql.go create mode 100644 internal/endtoend/testdata/clickhouse_functions/query.sql create mode 100644 internal/endtoend/testdata/clickhouse_functions/schema.sql create mode 100644 internal/endtoend/testdata/clickhouse_functions/sqlc.json create mode 100644 internal/endtoend/testdata/clickhouse_named_params/go/db.go create mode 100644 internal/endtoend/testdata/clickhouse_named_params/go/models.go create mode 100644 internal/endtoend/testdata/clickhouse_named_params/go/query.sql.go create mode 100644 internal/endtoend/testdata/clickhouse_named_params/query.sql create mode 100644 internal/endtoend/testdata/clickhouse_named_params/schema.sql create mode 100644 internal/endtoend/testdata/clickhouse_named_params/sqlc.json diff --git a/internal/endtoend/ddl_test.go b/internal/endtoend/ddl_test.go index bed9333743..7a49f7a923 100644 --- a/internal/endtoend/ddl_test.go +++ b/internal/endtoend/ddl_test.go @@ -54,6 +54,8 @@ func TestValidSchema(t *testing.T) { local.PostgreSQL(t, schema) case config.EngineMySQL: local.MySQL(t, schema) + case config.EngineClickHouse: + local.ClickHouse(t, schema) } }) } diff --git a/internal/endtoend/endtoend_test.go b/internal/endtoend/endtoend_test.go index 537307e453..f26c0250e8 100644 --- a/internal/endtoend/endtoend_test.go +++ b/internal/endtoend/endtoend_test.go @@ -112,7 +112,7 @@ func TestReplay(t *testing.T) { // t.Parallel() ctx := context.Background() - var mysqlURI, postgresURI string + var mysqlURI, postgresURI, clickhouseURI string if err := docker.Installed(); err == nil { { host, err := docker.StartPostgreSQLServer(ctx) @@ -128,6 +128,13 @@ func TestReplay(t *testing.T) { } mysqlURI = host } + { + host, err := docker.StartClickHouseServer(ctx) + if err != nil { + t.Fatalf("starting clickhouse failed: %s", err) + } + clickhouseURI = host + } } contexts := map[string]textContext{ @@ -150,6 +157,12 @@ func TestReplay(t *testing.T) { Engine: config.EngineMySQL, URI: mysqlURI, }, + + { + Name: "clickhouse", + Engine: config.EngineClickHouse, + URI: clickhouseURI, + }, } for i := range c.SQL { switch c.SQL[i].Engine { @@ -161,6 +174,10 @@ func TestReplay(t *testing.T) { c.SQL[i].Database = &config.Database{ Managed: true, } + case config.EngineClickHouse: + c.SQL[i].Database = &config.Database{ + Managed: true, + } case config.EngineSQLite: c.SQL[i].Database = &config.Database{ Managed: true, diff --git a/internal/endtoend/testdata/clickhouse_advanced/go/db.go b/internal/endtoend/testdata/clickhouse_advanced/go/db.go new file mode 100644 index 0000000000..cd5bbb8e08 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_advanced/go/db.go @@ -0,0 +1,31 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +import ( + "context" + "database/sql" +) + +type DBTX interface { + ExecContext(context.Context, string, ...interface{}) (sql.Result, error) + PrepareContext(context.Context, string) (*sql.Stmt, error) + QueryContext(context.Context, string, ...interface{}) (*sql.Rows, error) + QueryRowContext(context.Context, string, ...interface{}) *sql.Row +} + +func New(db DBTX) *Queries { + return &Queries{db: db} +} + +type Queries struct { + db DBTX +} + +func (q *Queries) WithTx(tx *sql.Tx) *Queries { + return &Queries{ + db: tx, + } +} diff --git a/internal/endtoend/testdata/clickhouse_advanced/go/models.go b/internal/endtoend/testdata/clickhouse_advanced/go/models.go new file mode 100644 index 0000000000..1605ea1f7d --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_advanced/go/models.go @@ -0,0 +1,24 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +import ( + "time" +) + +type Activity struct { + ID uint32 + UserID uint32 + Action string + Timestamp time.Time +} + +type Transaction struct { + ID uint32 + UserID uint32 + Amount float64 + Category string + CreatedAt time.Time +} diff --git a/internal/endtoend/testdata/clickhouse_advanced/go/query.sql.go b/internal/endtoend/testdata/clickhouse_advanced/go/query.sql.go new file mode 100644 index 0000000000..f04270a8f2 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_advanced/go/query.sql.go @@ -0,0 +1,112 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 +// source: query.sql + +package db + +import ( + "context" + "time" +) + +const getTransactionClassification = `-- name: GetTransactionClassification :many +SELECT + id, + user_id, + amount, + CASE + WHEN amount > 1000 THEN 'high' + WHEN amount > 100 THEN 'medium' + ELSE 'low' + END as classification, + category +FROM transactions +WHERE created_at >= ? +ORDER BY amount DESC; + +` + +type GetTransactionClassificationRow struct { + ID uint32 + UserID uint32 + Amount float64 + Classification string + Category string +} + +// IN operator with subquery style +func (q *Queries) GetTransactionClassification(ctx context.Context, createdAt time.Time) ([]GetTransactionClassificationRow, error) { + rows, err := q.db.QueryContext(ctx, getTransactionClassification, createdAt) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetTransactionClassificationRow + for rows.Next() { + var i GetTransactionClassificationRow + if err := rows.Scan( + &i.ID, + &i.UserID, + &i.Amount, + &i.Classification, + &i.Category, + ); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getTransactionsByCategory = `-- name: GetTransactionsByCategory :many +SELECT + id, + user_id, + amount, + category +FROM transactions +WHERE category IN ('groceries', 'utilities', 'transportation') +ORDER BY created_at DESC; +` + +type GetTransactionsByCategoryRow struct { + ID uint32 + UserID uint32 + Amount float64 + Category string +} + +func (q *Queries) GetTransactionsByCategory(ctx context.Context) ([]GetTransactionsByCategoryRow, error) { + rows, err := q.db.QueryContext(ctx, getTransactionsByCategory) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetTransactionsByCategoryRow + for rows.Next() { + var i GetTransactionsByCategoryRow + if err := rows.Scan( + &i.ID, + &i.UserID, + &i.Amount, + &i.Category, + ); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} diff --git a/internal/endtoend/testdata/clickhouse_advanced/query.sql b/internal/endtoend/testdata/clickhouse_advanced/query.sql new file mode 100644 index 0000000000..c56e97ad91 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_advanced/query.sql @@ -0,0 +1,26 @@ +-- CASE expression +-- name: GetTransactionClassification :many +SELECT + id, + user_id, + amount, + CASE + WHEN amount > 1000 THEN 'high' + WHEN amount > 100 THEN 'medium' + ELSE 'low' + END as classification, + category +FROM transactions +WHERE created_at >= ? +ORDER BY amount DESC; + +-- IN operator with subquery style +-- name: GetTransactionsByCategory :many +SELECT + id, + user_id, + amount, + category +FROM transactions +WHERE category IN ('groceries', 'utilities', 'transportation') +ORDER BY created_at DESC; diff --git a/internal/endtoend/testdata/clickhouse_advanced/schema.sql b/internal/endtoend/testdata/clickhouse_advanced/schema.sql new file mode 100644 index 0000000000..907e6650f8 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_advanced/schema.sql @@ -0,0 +1,20 @@ +CREATE TABLE IF NOT EXISTS transactions +( + id UInt32, + user_id UInt32, + amount Float64, + category String, + created_at DateTime +) +ENGINE = MergeTree() +ORDER BY (id, created_at); + +CREATE TABLE IF NOT EXISTS activities +( + id UInt32, + user_id UInt32, + action String, + timestamp DateTime +) +ENGINE = MergeTree() +ORDER BY (id, timestamp); diff --git a/internal/endtoend/testdata/clickhouse_advanced/sqlc.json b/internal/endtoend/testdata/clickhouse_advanced/sqlc.json new file mode 100644 index 0000000000..439f37f401 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_advanced/sqlc.json @@ -0,0 +1,16 @@ +{ + "version": "2", + "sql": [ + { + "schema": "schema.sql", + "queries": "query.sql", + "engine": "clickhouse", + "gen": { + "go": { + "out": "go", + "package": "db" + } + } + } + ] +} diff --git a/internal/endtoend/testdata/clickhouse_arrays/go/db.go b/internal/endtoend/testdata/clickhouse_arrays/go/db.go new file mode 100644 index 0000000000..cd5bbb8e08 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_arrays/go/db.go @@ -0,0 +1,31 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +import ( + "context" + "database/sql" +) + +type DBTX interface { + ExecContext(context.Context, string, ...interface{}) (sql.Result, error) + PrepareContext(context.Context, string) (*sql.Stmt, error) + QueryContext(context.Context, string, ...interface{}) (*sql.Rows, error) + QueryRowContext(context.Context, string, ...interface{}) *sql.Row +} + +func New(db DBTX) *Queries { + return &Queries{db: db} +} + +type Queries struct { + db DBTX +} + +func (q *Queries) WithTx(tx *sql.Tx) *Queries { + return &Queries{ + db: tx, + } +} diff --git a/internal/endtoend/testdata/clickhouse_arrays/go/models.go b/internal/endtoend/testdata/clickhouse_arrays/go/models.go new file mode 100644 index 0000000000..7b86b1f661 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_arrays/go/models.go @@ -0,0 +1,23 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +import ( + "time" +) + +type Event struct { + ID uint32 + Name string + Timestamp time.Time + Properties string +} + +type Product struct { + ID uint32 + Name string + Tags []string + Ratings []string +} diff --git a/internal/endtoend/testdata/clickhouse_arrays/go/query.sql.go b/internal/endtoend/testdata/clickhouse_arrays/go/query.sql.go new file mode 100644 index 0000000000..07075b945f --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_arrays/go/query.sql.go @@ -0,0 +1,96 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 +// source: query.sql + +package db + +import ( + "context" +) + +const getProductTagsArray = `-- name: GetProductTagsArray :many +SELECT + id, + name, + arrayJoin(tags) as tag +FROM products +WHERE id = ? +ORDER BY tag; + +` + +type GetProductTagsArrayRow struct { + ID uint32 + Name string + Tag string +} + +// Array functions +func (q *Queries) GetProductTagsArray(ctx context.Context, id uint32) ([]GetProductTagsArrayRow, error) { + rows, err := q.db.QueryContext(ctx, getProductTagsArray, id) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetProductTagsArrayRow + for rows.Next() { + var i GetProductTagsArrayRow + if err := rows.Scan(&i.ID, &i.Name, &i.Tag); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getProductsWithArrayFunctions = `-- name: GetProductsWithArrayFunctions :many +SELECT + id, + name, + length(tags) as tag_count, + length(ratings) as rating_count +FROM products +ORDER BY tag_count DESC; +` + +type GetProductsWithArrayFunctionsRow struct { + ID uint32 + Name string + TagCount uint64 + RatingCount uint64 +} + +func (q *Queries) GetProductsWithArrayFunctions(ctx context.Context) ([]GetProductsWithArrayFunctionsRow, error) { + rows, err := q.db.QueryContext(ctx, getProductsWithArrayFunctions) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetProductsWithArrayFunctionsRow + for rows.Next() { + var i GetProductsWithArrayFunctionsRow + if err := rows.Scan( + &i.ID, + &i.Name, + &i.TagCount, + &i.RatingCount, + ); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} diff --git a/internal/endtoend/testdata/clickhouse_arrays/query.sql b/internal/endtoend/testdata/clickhouse_arrays/query.sql new file mode 100644 index 0000000000..2405e34819 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_arrays/query.sql @@ -0,0 +1,19 @@ +-- ARRAY JOIN with arrays +-- name: GetProductTagsArray :many +SELECT + id, + name, + arrayJoin(tags) as tag +FROM products +WHERE id = ? +ORDER BY tag; + +-- Array functions +-- name: GetProductsWithArrayFunctions :many +SELECT + id, + name, + length(tags) as tag_count, + length(ratings) as rating_count +FROM products +ORDER BY tag_count DESC; diff --git a/internal/endtoend/testdata/clickhouse_arrays/schema.sql b/internal/endtoend/testdata/clickhouse_arrays/schema.sql new file mode 100644 index 0000000000..8356ff87a7 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_arrays/schema.sql @@ -0,0 +1,22 @@ +CREATE TABLE IF NOT EXISTS products +( + id UInt32, + name String, + tags Array(String), + ratings Array(UInt8) +) +ENGINE = MergeTree() +ORDER BY id; + +CREATE TABLE IF NOT EXISTS events +( + id UInt32, + name String, + timestamp DateTime, + properties Nested( + key String, + value String + ) +) +ENGINE = MergeTree() +ORDER BY (id, timestamp); diff --git a/internal/endtoend/testdata/clickhouse_arrays/sqlc.json b/internal/endtoend/testdata/clickhouse_arrays/sqlc.json new file mode 100644 index 0000000000..439f37f401 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_arrays/sqlc.json @@ -0,0 +1,16 @@ +{ + "version": "2", + "sql": [ + { + "schema": "schema.sql", + "queries": "query.sql", + "engine": "clickhouse", + "gen": { + "go": { + "out": "go", + "package": "db" + } + } + } + ] +} diff --git a/internal/endtoend/testdata/clickhouse_cast/go/db.go b/internal/endtoend/testdata/clickhouse_cast/go/db.go new file mode 100644 index 0000000000..cd5bbb8e08 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_cast/go/db.go @@ -0,0 +1,31 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +import ( + "context" + "database/sql" +) + +type DBTX interface { + ExecContext(context.Context, string, ...interface{}) (sql.Result, error) + PrepareContext(context.Context, string) (*sql.Stmt, error) + QueryContext(context.Context, string, ...interface{}) (*sql.Rows, error) + QueryRowContext(context.Context, string, ...interface{}) *sql.Row +} + +func New(db DBTX) *Queries { + return &Queries{db: db} +} + +type Queries struct { + db DBTX +} + +func (q *Queries) WithTx(tx *sql.Tx) *Queries { + return &Queries{ + db: tx, + } +} diff --git a/internal/endtoend/testdata/clickhouse_cast/go/models.go b/internal/endtoend/testdata/clickhouse_cast/go/models.go new file mode 100644 index 0000000000..a276b3d559 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_cast/go/models.go @@ -0,0 +1,12 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +type Datum struct { + ID uint32 + Amount string + Quantity string + CreatedDate string +} diff --git a/internal/endtoend/testdata/clickhouse_cast/go/query.sql.go b/internal/endtoend/testdata/clickhouse_cast/go/query.sql.go new file mode 100644 index 0000000000..98b7e9c930 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_cast/go/query.sql.go @@ -0,0 +1,140 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 +// source: query.sql + +package db + +import ( + "context" + "time" +) + +const getCastToDate = `-- name: GetCastToDate :many +SELECT id, CAST(created_date AS Date) AS date FROM data; +` + +type GetCastToDateRow struct { + ID uint32 + Date time.Time +} + +func (q *Queries) GetCastToDate(ctx context.Context) ([]GetCastToDateRow, error) { + rows, err := q.db.QueryContext(ctx, getCastToDate) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetCastToDateRow + for rows.Next() { + var i GetCastToDateRow + if err := rows.Scan(&i.ID, &i.Date); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getCastToFloat = `-- name: GetCastToFloat :many +SELECT id, CAST(amount AS Float32) AS amount FROM data; +` + +type GetCastToFloatRow struct { + ID uint32 + Amount float32 +} + +func (q *Queries) GetCastToFloat(ctx context.Context) ([]GetCastToFloatRow, error) { + rows, err := q.db.QueryContext(ctx, getCastToFloat) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetCastToFloatRow + for rows.Next() { + var i GetCastToFloatRow + if err := rows.Scan(&i.ID, &i.Amount); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getCastToInt = `-- name: GetCastToInt :many +SELECT id, CAST(quantity AS UInt32) AS quantity FROM data; +` + +type GetCastToIntRow struct { + ID uint32 + Quantity uint32 +} + +func (q *Queries) GetCastToInt(ctx context.Context) ([]GetCastToIntRow, error) { + rows, err := q.db.QueryContext(ctx, getCastToInt) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetCastToIntRow + for rows.Next() { + var i GetCastToIntRow + if err := rows.Scan(&i.ID, &i.Quantity); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getMultipleCasts = `-- name: GetMultipleCasts :many +SELECT id, CAST(amount AS Float32) AS amount_float, CAST(quantity AS UInt32) AS quantity_int FROM data; +` + +type GetMultipleCastsRow struct { + ID uint32 + AmountFloat float32 + QuantityInt uint32 +} + +func (q *Queries) GetMultipleCasts(ctx context.Context) ([]GetMultipleCastsRow, error) { + rows, err := q.db.QueryContext(ctx, getMultipleCasts) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetMultipleCastsRow + for rows.Next() { + var i GetMultipleCastsRow + if err := rows.Scan(&i.ID, &i.AmountFloat, &i.QuantityInt); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} diff --git a/internal/endtoend/testdata/clickhouse_cast/query.sql b/internal/endtoend/testdata/clickhouse_cast/query.sql new file mode 100644 index 0000000000..57640735db --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_cast/query.sql @@ -0,0 +1,11 @@ +-- name: GetCastToFloat :many +SELECT id, CAST(amount AS Float32) AS amount FROM data; + +-- name: GetCastToInt :many +SELECT id, CAST(quantity AS UInt32) AS quantity FROM data; + +-- name: GetCastToDate :many +SELECT id, CAST(created_date AS Date) AS date FROM data; + +-- name: GetMultipleCasts :many +SELECT id, CAST(amount AS Float32) AS amount_float, CAST(quantity AS UInt32) AS quantity_int FROM data; diff --git a/internal/endtoend/testdata/clickhouse_cast/schema.sql b/internal/endtoend/testdata/clickhouse_cast/schema.sql new file mode 100644 index 0000000000..a08432d55b --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_cast/schema.sql @@ -0,0 +1,9 @@ +CREATE TABLE IF NOT EXISTS data +( + id UInt32, + amount String, + quantity String, + created_date String +) +ENGINE = MergeTree() +ORDER BY id; diff --git a/internal/endtoend/testdata/clickhouse_cast/sqlc.json b/internal/endtoend/testdata/clickhouse_cast/sqlc.json new file mode 100644 index 0000000000..8c3f26ae8c --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_cast/sqlc.json @@ -0,0 +1,16 @@ +{ + "version": "2", + "sql": [ + { + "engine": "clickhouse", + "queries": "query.sql", + "schema": "schema.sql", + "gen": { + "go": { + "out": "go", + "package": "db" + } + } + } + ] +} diff --git a/internal/endtoend/testdata/clickhouse_delete_update/go/db.go b/internal/endtoend/testdata/clickhouse_delete_update/go/db.go new file mode 100644 index 0000000000..cd5bbb8e08 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_delete_update/go/db.go @@ -0,0 +1,31 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +import ( + "context" + "database/sql" +) + +type DBTX interface { + ExecContext(context.Context, string, ...interface{}) (sql.Result, error) + PrepareContext(context.Context, string) (*sql.Stmt, error) + QueryContext(context.Context, string, ...interface{}) (*sql.Rows, error) + QueryRowContext(context.Context, string, ...interface{}) *sql.Row +} + +func New(db DBTX) *Queries { + return &Queries{db: db} +} + +type Queries struct { + db DBTX +} + +func (q *Queries) WithTx(tx *sql.Tx) *Queries { + return &Queries{ + db: tx, + } +} diff --git a/internal/endtoend/testdata/clickhouse_delete_update/go/models.go b/internal/endtoend/testdata/clickhouse_delete_update/go/models.go new file mode 100644 index 0000000000..76d767290c --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_delete_update/go/models.go @@ -0,0 +1,16 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +import ( + "time" +) + +type Log struct { + ID uint32 + Level string + Message string + CreatedAt time.Time +} diff --git a/internal/endtoend/testdata/clickhouse_delete_update/go/query.sql.go b/internal/endtoend/testdata/clickhouse_delete_update/go/query.sql.go new file mode 100644 index 0000000000..637871e77a --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_delete_update/go/query.sql.go @@ -0,0 +1,37 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 +// source: query.sql + +package db + +import ( + "context" +) + +const deleteErrorLogs = `-- name: DeleteErrorLogs :exec +DELETE FROM logs WHERE level = 'ERROR'; +` + +func (q *Queries) DeleteErrorLogs(ctx context.Context) error { + _, err := q.db.ExecContext(ctx, deleteErrorLogs) + return err +} + +const deleteOldLogs = `-- name: DeleteOldLogs :exec +DELETE FROM logs WHERE created_at < ?; +` + +func (q *Queries) DeleteOldLogs(ctx context.Context) error { + _, err := q.db.ExecContext(ctx, deleteOldLogs) + return err +} + +const updateLogLevel = `-- name: UpdateLogLevel :exec +ALTER TABLE logs UPDATE level = ? WHERE id = ?; +` + +func (q *Queries) UpdateLogLevel(ctx context.Context) error { + _, err := q.db.ExecContext(ctx, updateLogLevel) + return err +} diff --git a/internal/endtoend/testdata/clickhouse_delete_update/query.sql b/internal/endtoend/testdata/clickhouse_delete_update/query.sql new file mode 100644 index 0000000000..acc59438f6 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_delete_update/query.sql @@ -0,0 +1,8 @@ +-- name: DeleteOldLogs :exec +DELETE FROM logs WHERE created_at < ?; + +-- name: DeleteErrorLogs :exec +DELETE FROM logs WHERE level = 'ERROR'; + +-- name: UpdateLogLevel :exec +ALTER TABLE logs UPDATE level = ? WHERE id = ?; diff --git a/internal/endtoend/testdata/clickhouse_delete_update/schema.sql b/internal/endtoend/testdata/clickhouse_delete_update/schema.sql new file mode 100644 index 0000000000..cb37160eb3 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_delete_update/schema.sql @@ -0,0 +1,9 @@ +CREATE TABLE IF NOT EXISTS logs +( + id UInt32, + level String, + message String, + created_at DateTime +) +ENGINE = MergeTree() +ORDER BY id; diff --git a/internal/endtoend/testdata/clickhouse_delete_update/sqlc.json b/internal/endtoend/testdata/clickhouse_delete_update/sqlc.json new file mode 100644 index 0000000000..8c3f26ae8c --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_delete_update/sqlc.json @@ -0,0 +1,16 @@ +{ + "version": "2", + "sql": [ + { + "engine": "clickhouse", + "queries": "query.sql", + "schema": "schema.sql", + "gen": { + "go": { + "out": "go", + "package": "db" + } + } + } + ] +} diff --git a/internal/endtoend/testdata/clickhouse_functions/go/db.go b/internal/endtoend/testdata/clickhouse_functions/go/db.go new file mode 100644 index 0000000000..cd5bbb8e08 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_functions/go/db.go @@ -0,0 +1,31 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +import ( + "context" + "database/sql" +) + +type DBTX interface { + ExecContext(context.Context, string, ...interface{}) (sql.Result, error) + PrepareContext(context.Context, string) (*sql.Stmt, error) + QueryContext(context.Context, string, ...interface{}) (*sql.Rows, error) + QueryRowContext(context.Context, string, ...interface{}) *sql.Row +} + +func New(db DBTX) *Queries { + return &Queries{db: db} +} + +type Queries struct { + db DBTX +} + +func (q *Queries) WithTx(tx *sql.Tx) *Queries { + return &Queries{ + db: tx, + } +} diff --git a/internal/endtoend/testdata/clickhouse_functions/go/models.go b/internal/endtoend/testdata/clickhouse_functions/go/models.go new file mode 100644 index 0000000000..0f7b5a2f03 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_functions/go/models.go @@ -0,0 +1,27 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +import ( + "net/netip" + "time" +) + +type Metric struct { + Name string + Value float64 + Tags map[string]string + CreatedAt time.Time +} + +type WebLog struct { + ID uint32 + IpAddress netip.Addr + Timestamp time.Time + Url string + ResponseTimeMs uint32 + StatusCode uint16 + UserAgent string +} diff --git a/internal/endtoend/testdata/clickhouse_functions/go/query.sql.go b/internal/endtoend/testdata/clickhouse_functions/go/query.sql.go new file mode 100644 index 0000000000..d2aaf05d1b --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_functions/go/query.sql.go @@ -0,0 +1,392 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 +// source: query.sql + +package db + +import ( + "context" + "net/netip" + "time" +) + +const getHttpStatusCodes = `-- name: GetHttpStatusCodes :many +SELECT + status_code, + COUNT(*) as count, + AVG(response_time_ms) as avg_response_time +FROM web_logs +WHERE timestamp >= ? +GROUP BY status_code +ORDER BY count DESC; + +` + +type GetHttpStatusCodesRow struct { + StatusCode uint16 + Count uint64 + AvgResponseTime float64 +} + +// Conditional expressions +func (q *Queries) GetHttpStatusCodes(ctx context.Context, timestamp time.Time) ([]GetHttpStatusCodesRow, error) { + rows, err := q.db.QueryContext(ctx, getHttpStatusCodes, timestamp) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetHttpStatusCodesRow + for rows.Next() { + var i GetHttpStatusCodesRow + if err := rows.Scan(&i.StatusCode, &i.Count, &i.AvgResponseTime); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getLogsForDateRange = `-- name: GetLogsForDateRange :many +SELECT + id, + ip_address, + timestamp, + url +FROM web_logs +WHERE toDate(timestamp) >= ? AND toDate(timestamp) <= ? +ORDER BY timestamp DESC; +` + +type GetLogsForDateRangeParams struct { + Timestamp time.Time + Timestamp_2 time.Time +} + +type GetLogsForDateRangeRow struct { + ID uint32 + IpAddress netip.Addr + Timestamp time.Time + Url string +} + +func (q *Queries) GetLogsForDateRange(ctx context.Context, arg GetLogsForDateRangeParams) ([]GetLogsForDateRangeRow, error) { + rows, err := q.db.QueryContext(ctx, getLogsForDateRange, arg.Timestamp, arg.Timestamp_2) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetLogsForDateRangeRow + for rows.Next() { + var i GetLogsForDateRangeRow + if err := rows.Scan( + &i.ID, + &i.IpAddress, + &i.Timestamp, + &i.Url, + ); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getLogsGroupedByHour = `-- name: GetLogsGroupedByHour :many +SELECT + toStartOfHour(timestamp) as hour, + COUNT(*) as request_count, + AVG(response_time_ms) as avg_response_time +FROM web_logs +WHERE timestamp >= ? +GROUP BY hour +ORDER BY hour DESC; + +` + +type GetLogsGroupedByHourRow struct { + Hour interface{} + RequestCount uint64 + AvgResponseTime float64 +} + +// String functions +func (q *Queries) GetLogsGroupedByHour(ctx context.Context, timestamp time.Time) ([]GetLogsGroupedByHourRow, error) { + rows, err := q.db.QueryContext(ctx, getLogsGroupedByHour, timestamp) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetLogsGroupedByHourRow + for rows.Next() { + var i GetLogsGroupedByHourRow + if err := rows.Scan(&i.Hour, &i.RequestCount, &i.AvgResponseTime); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getLogsSummary = `-- name: GetLogsSummary :many +SELECT + ip_address, + COUNT(*) as request_count, + CAST(AVG(response_time_ms) AS UInt32) as avg_time, + CAST(MIN(timestamp) AS Date) as first_request, + CAST(MAX(timestamp) AS Date) as last_request +FROM web_logs +WHERE timestamp >= ? +GROUP BY ip_address +ORDER BY request_count DESC; + +` + +type GetLogsSummaryRow struct { + IpAddress netip.Addr + RequestCount uint64 + AvgTime uint32 + FirstRequest time.Time + LastRequest time.Time +} + +// Math functions +func (q *Queries) GetLogsSummary(ctx context.Context, timestamp time.Time) ([]GetLogsSummaryRow, error) { + rows, err := q.db.QueryContext(ctx, getLogsSummary, timestamp) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetLogsSummaryRow + for rows.Next() { + var i GetLogsSummaryRow + if err := rows.Scan( + &i.IpAddress, + &i.RequestCount, + &i.AvgTime, + &i.FirstRequest, + &i.LastRequest, + ); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getMetricsByTag = `-- name: GetMetricsByTag :many +SELECT + name, + value, + tags, + created_at +FROM metrics +WHERE tags['environment'] = ? +ORDER BY created_at DESC; +` + +func (q *Queries) GetMetricsByTag(ctx context.Context, dollar_1 interface{}) ([]Metric, error) { + rows, err := q.db.QueryContext(ctx, getMetricsByTag, dollar_1) + if err != nil { + return nil, err + } + defer rows.Close() + var items []Metric + for rows.Next() { + var i Metric + if err := rows.Scan( + &i.Name, + &i.Value, + &i.Tags, + &i.CreatedAt, + ); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getResponseTimeStats = `-- name: GetResponseTimeStats :many +SELECT + status_code, + COUNT(*) as count, + round(AVG(response_time_ms), 2) as avg_response_time, + sqrt(varPop(response_time_ms)) as stddev +FROM web_logs +WHERE timestamp >= ? +GROUP BY status_code +ORDER BY avg_response_time DESC; + +` + +type GetResponseTimeStatsRow struct { + StatusCode uint16 + Count uint64 + AvgResponseTime interface{} + Stddev interface{} +} + +// Map type operations +func (q *Queries) GetResponseTimeStats(ctx context.Context, timestamp time.Time) ([]GetResponseTimeStatsRow, error) { + rows, err := q.db.QueryContext(ctx, getResponseTimeStats, timestamp) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetResponseTimeStatsRow + for rows.Next() { + var i GetResponseTimeStatsRow + if err := rows.Scan( + &i.StatusCode, + &i.Count, + &i.AvgResponseTime, + &i.Stddev, + ); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getSlowRequests = `-- name: GetSlowRequests :many +SELECT + id, + url, + response_time_ms, + CASE + WHEN response_time_ms > 1000 THEN 'very_slow' + WHEN response_time_ms > 500 THEN 'slow' + WHEN response_time_ms > 100 THEN 'medium' + ELSE 'fast' + END as performance +FROM web_logs +WHERE response_time_ms > ? +ORDER BY response_time_ms DESC; + +` + +type GetSlowRequestsRow struct { + ID uint32 + Url string + ResponseTimeMs uint32 + Performance string +} + +// Type casting +func (q *Queries) GetSlowRequests(ctx context.Context, responseTimeMs uint32) ([]GetSlowRequestsRow, error) { + rows, err := q.db.QueryContext(ctx, getSlowRequests, responseTimeMs) + if err != nil { + return nil, err + } + defer rows.Close() + var items []GetSlowRequestsRow + for rows.Next() { + var i GetSlowRequestsRow + if err := rows.Scan( + &i.ID, + &i.Url, + &i.ResponseTimeMs, + &i.Performance, + ); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const searchLogsByUrl = `-- name: SearchLogsByUrl :many +SELECT + id, + ip_address, + url, + response_time_ms +FROM web_logs +WHERE url LIKE ? +ORDER BY timestamp DESC +LIMIT ?; +` + +type SearchLogsByUrlParams struct { + Url string + Limit int64 +} + +type SearchLogsByUrlRow struct { + ID uint32 + IpAddress netip.Addr + Url string + ResponseTimeMs uint32 +} + +func (q *Queries) SearchLogsByUrl(ctx context.Context, arg SearchLogsByUrlParams) ([]SearchLogsByUrlRow, error) { + rows, err := q.db.QueryContext(ctx, searchLogsByUrl, arg.Url, arg.Limit) + if err != nil { + return nil, err + } + defer rows.Close() + var items []SearchLogsByUrlRow + for rows.Next() { + var i SearchLogsByUrlRow + if err := rows.Scan( + &i.ID, + &i.IpAddress, + &i.Url, + &i.ResponseTimeMs, + ); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} diff --git a/internal/endtoend/testdata/clickhouse_functions/query.sql b/internal/endtoend/testdata/clickhouse_functions/query.sql new file mode 100644 index 0000000000..ef8590c395 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_functions/query.sql @@ -0,0 +1,94 @@ +-- Date/Time functions +-- name: GetLogsForDateRange :many +SELECT + id, + ip_address, + timestamp, + url +FROM web_logs +WHERE toDate(timestamp) >= ? AND toDate(timestamp) <= ? +ORDER BY timestamp DESC; + +-- name: GetLogsGroupedByHour :many +SELECT + toStartOfHour(timestamp) as hour, + COUNT(*) as request_count, + AVG(response_time_ms) as avg_response_time +FROM web_logs +WHERE timestamp >= ? +GROUP BY hour +ORDER BY hour DESC; + +-- String functions +-- name: SearchLogsByUrl :many +SELECT + id, + ip_address, + url, + response_time_ms +FROM web_logs +WHERE url LIKE ? +ORDER BY timestamp DESC +LIMIT ?; + +-- name: GetHttpStatusCodes :many +SELECT + status_code, + COUNT(*) as count, + AVG(response_time_ms) as avg_response_time +FROM web_logs +WHERE timestamp >= ? +GROUP BY status_code +ORDER BY count DESC; + +-- Conditional expressions +-- name: GetSlowRequests :many +SELECT + id, + url, + response_time_ms, + CASE + WHEN response_time_ms > 1000 THEN 'very_slow' + WHEN response_time_ms > 500 THEN 'slow' + WHEN response_time_ms > 100 THEN 'medium' + ELSE 'fast' + END as performance +FROM web_logs +WHERE response_time_ms > ? +ORDER BY response_time_ms DESC; + +-- Type casting +-- name: GetLogsSummary :many +SELECT + ip_address, + COUNT(*) as request_count, + CAST(AVG(response_time_ms) AS UInt32) as avg_time, + CAST(MIN(timestamp) AS Date) as first_request, + CAST(MAX(timestamp) AS Date) as last_request +FROM web_logs +WHERE timestamp >= ? +GROUP BY ip_address +ORDER BY request_count DESC; + +-- Math functions +-- name: GetResponseTimeStats :many +SELECT + status_code, + COUNT(*) as count, + round(AVG(response_time_ms), 2) as avg_response_time, + sqrt(varPop(response_time_ms)) as stddev +FROM web_logs +WHERE timestamp >= ? +GROUP BY status_code +ORDER BY avg_response_time DESC; + +-- Map type operations +-- name: GetMetricsByTag :many +SELECT + name, + value, + tags, + created_at +FROM metrics +WHERE tags['environment'] = ? +ORDER BY created_at DESC; diff --git a/internal/endtoend/testdata/clickhouse_functions/schema.sql b/internal/endtoend/testdata/clickhouse_functions/schema.sql new file mode 100644 index 0000000000..8a6ee7a269 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_functions/schema.sql @@ -0,0 +1,22 @@ +CREATE TABLE IF NOT EXISTS web_logs +( + id UInt32, + ip_address IPv4, + timestamp DateTime, + url String, + response_time_ms UInt32, + status_code UInt16, + user_agent String +) +ENGINE = MergeTree() +ORDER BY (timestamp, ip_address); + +CREATE TABLE IF NOT EXISTS metrics +( + name String, + value Float64, + tags Map(String, String), + created_at DateTime +) +ENGINE = MergeTree() +ORDER BY (created_at, name); diff --git a/internal/endtoend/testdata/clickhouse_functions/sqlc.json b/internal/endtoend/testdata/clickhouse_functions/sqlc.json new file mode 100644 index 0000000000..439f37f401 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_functions/sqlc.json @@ -0,0 +1,16 @@ +{ + "version": "2", + "sql": [ + { + "schema": "schema.sql", + "queries": "query.sql", + "engine": "clickhouse", + "gen": { + "go": { + "out": "go", + "package": "db" + } + } + } + ] +} diff --git a/internal/endtoend/testdata/clickhouse_named_params/go/db.go b/internal/endtoend/testdata/clickhouse_named_params/go/db.go new file mode 100644 index 0000000000..cd5bbb8e08 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_named_params/go/db.go @@ -0,0 +1,31 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +import ( + "context" + "database/sql" +) + +type DBTX interface { + ExecContext(context.Context, string, ...interface{}) (sql.Result, error) + PrepareContext(context.Context, string) (*sql.Stmt, error) + QueryContext(context.Context, string, ...interface{}) (*sql.Rows, error) + QueryRowContext(context.Context, string, ...interface{}) *sql.Row +} + +func New(db DBTX) *Queries { + return &Queries{db: db} +} + +type Queries struct { + db DBTX +} + +func (q *Queries) WithTx(tx *sql.Tx) *Queries { + return &Queries{ + db: tx, + } +} diff --git a/internal/endtoend/testdata/clickhouse_named_params/go/models.go b/internal/endtoend/testdata/clickhouse_named_params/go/models.go new file mode 100644 index 0000000000..4eec6c305f --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_named_params/go/models.go @@ -0,0 +1,11 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 + +package db + +type User struct { + ID uint32 + Name string + Email string +} diff --git a/internal/endtoend/testdata/clickhouse_named_params/go/query.sql.go b/internal/endtoend/testdata/clickhouse_named_params/go/query.sql.go new file mode 100644 index 0000000000..e78e09c646 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_named_params/go/query.sql.go @@ -0,0 +1,74 @@ +// Code generated by sqlc. DO NOT EDIT. +// versions: +// sqlc v1.30.0 +// source: query.sql + +package db + +import ( + "context" + "strings" +) + +const filterUsersByIDs = `-- name: FilterUsersByIDs :many +SELECT id, name, email FROM users WHERE id IN ($1); +` + +func (q *Queries) FilterUsersByIDs(ctx context.Context, ids []uint32) ([]User, error) { + query := filterUsersByIDs + var queryParams []interface{} + if len(ids) > 0 { + for _, v := range ids { + queryParams = append(queryParams, v) + } + query = strings.Replace(query, "/*SLICE:ids*/?", strings.Repeat(",?", len(ids))[1:], 1) + } else { + query = strings.Replace(query, "/*SLICE:ids*/?", "NULL", 1) + } + rows, err := q.db.QueryContext(ctx, query, queryParams...) + if err != nil { + return nil, err + } + defer rows.Close() + var items []User + for rows.Next() { + var i User + if err := rows.Scan(&i.ID, &i.Name, &i.Email); err != nil { + return nil, err + } + items = append(items, i) + } + if err := rows.Close(); err != nil { + return nil, err + } + if err := rows.Err(); err != nil { + return nil, err + } + return items, nil +} + +const getUserByEmail = `-- name: GetUserByEmail :one +SELECT id, name, email FROM users WHERE email = $1; +` + +func (q *Queries) GetUserByEmail(ctx context.Context, email string) (User, error) { + row := q.db.QueryRowContext(ctx, getUserByEmail, email) + var i User + err := row.Scan(&i.ID, &i.Name, &i.Email) + return i, err +} + +const insertUser = `-- name: InsertUser :exec +INSERT INTO users (id, name, email) VALUES ($1, $2, $3); +` + +type InsertUserParams struct { + ID uint32 + Name string + Email string +} + +func (q *Queries) InsertUser(ctx context.Context, arg InsertUserParams) error { + _, err := q.db.ExecContext(ctx, insertUser, arg.ID, arg.Name, arg.Email) + return err +} diff --git a/internal/endtoend/testdata/clickhouse_named_params/query.sql b/internal/endtoend/testdata/clickhouse_named_params/query.sql new file mode 100644 index 0000000000..e22f18db4c --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_named_params/query.sql @@ -0,0 +1,8 @@ +-- name: GetUserByEmail :one +SELECT id, name, email FROM users WHERE email = sqlc.arg('email'); + +-- name: InsertUser :exec +INSERT INTO users (id, name, email) VALUES (sqlc.arg('id'), sqlc.arg('name'), sqlc.arg('email')); + +-- name: FilterUsersByIDs :many +SELECT id, name, email FROM users WHERE id IN (sqlc.slice('ids')); diff --git a/internal/endtoend/testdata/clickhouse_named_params/schema.sql b/internal/endtoend/testdata/clickhouse_named_params/schema.sql new file mode 100644 index 0000000000..4cebdd7396 --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_named_params/schema.sql @@ -0,0 +1,8 @@ +CREATE TABLE users +( + id UInt32, + name String, + email String +) +ENGINE = MergeTree() +ORDER BY id; diff --git a/internal/endtoend/testdata/clickhouse_named_params/sqlc.json b/internal/endtoend/testdata/clickhouse_named_params/sqlc.json new file mode 100644 index 0000000000..8c3f26ae8c --- /dev/null +++ b/internal/endtoend/testdata/clickhouse_named_params/sqlc.json @@ -0,0 +1,16 @@ +{ + "version": "2", + "sql": [ + { + "engine": "clickhouse", + "queries": "query.sql", + "schema": "schema.sql", + "gen": { + "go": { + "out": "go", + "package": "db" + } + } + } + ] +}