hbase 详细示例

Author: dapeng

docs/plugin/hbaseSide.md

@@ -98,12 +98,12 @@ CREATE TABLE sideTable (
 ```
 hbase(main):002:0> scan 'testFlinkStreamSql'
 ROW     COLUMN+CELL                                                                                                                
- 0      column=wtz:info, timestamp=1587089266719, value=hadoop                                                                     
- 0      column=wtz:message, timestamp=1587089245780, value=hbase                                                                   
- 1      column=wtz:info, timestamp=1587088818432, value=flink                                                                      
- 1      column=wtz:message, timestamp=1587088796633, value=dtstack                                                                 
- 2      column=wtz:info, timestamp=1587088858564, value=sql                                                                        
- 2      column=wtz:message, timestamp=1587088840507, value=stream
+ cfcd208495d565ef66e7dff9f98764dazhangsantest      column=wtz:info, timestamp=1587089266719, value=hadoop                                                                     
+ cfcd208495d565ef66e7dff9f98764dazhangsantest      column=wtz:message, timestamp=1587089245780, value=hbase                                                                   
+ c4ca4238a0b923820dcc509a6f75849blisitest      column=wtz:info, timestamp=1587088818432, value=flink                                                                      
+ c4ca4238a0b923820dcc509a6f75849blisitest      column=wtz:message, timestamp=1587088796633, value=dtstack                                                                 
+ c81e728d9d4c2f636f067f89cc14862cwangwutest      column=wtz:info, timestamp=1587088858564, value=sql                                                                        
+ c81e728d9d4c2f636f067f89cc14862cwangwutest      column=wtz:message, timestamp=1587088840507, value=stream
 ```
 在hbase中，rowKey是一个二进制码流，可以为任意字符串，flinkStreamSql读取rowKey并通过rowKey唯一确定数据，对rowKey没有任何限制,对rowKey可选择的构造包括 md5(alias + alias), '常量',也可以它们的自由组合。
 在本次案例中，rowKey为了简单，设置成了"0,1,2"这样的数值型字符，若有必要，也可以设计得更为复杂。
@@ -138,7 +138,7 @@ CREATE TABLE MyResult(
  CREATE TABLE sideTable (  
         wtz:message varchar as message,
         wtz:info varchar as info , 
-        PRIMARY KEY (md5(key1) + key2),
+        PRIMARY KEY (md5(rowkey1) + rowkey2 + 'test'),
          PERIOD FOR SYSTEM_TIME
 ) WITH (
         type = 'hbase',
@@ -166,6 +166,6 @@ into
         MyTable a
     left join
         sideTable b
-            on a.id=b.key1 and a.xx = b.key2;
+            on a.id=b.rowkey1 and a.name = b.rowkey2;
 ```