[fix-33004][core] fix parser sql error. Example: 'select t.* from viewOne as t' then this sql will be transformed to 'select t.* as * from viewOne as t' which cause sql error.

[fix-33004][core] fix parser sql error. Example: 'select t.* from viewOne as t' then this sql will be transformed to 'select t.* as * from viewOne as t' which cause sql error.

[fix-33004][core] fix parser sql error. Example: 'select t.* from viewOne as t' then this sql will be transformed to 'select t.* as * from viewOne as t' which cause sql error.

Author: FlechazoW

core/src/main/java/com/dtstack/flink/sql/parser/InsertSqlParser.java

@@ -162,23 +162,32 @@ private static void rebuildSelectNode(SqlNodeList selectList, SqlSelect sqlSelec
         SqlNodeList sqlNodes = new SqlNodeList(selectList.getParserPosition());
 
         for (int index = 0; index < selectList.size(); index++) {
-            if (selectList.get(index).getKind().equals(SqlKind.AS)
-                    || (selectList.get(index).getClass().equals(SqlIdentifier.class)
-                    && ((SqlIdentifier) selectList.get(index)).names.size() == 1)) {
-                sqlNodes.add(selectList.get(index));
+            SqlNode sqlNode = selectList.get(index);
+            // 判断sqlNode的类型是否属于 't1.f1 as f2'
+            boolean isAsNode = sqlNode.getKind().equals(SqlKind.AS);
+
+            // 判断sqlNode的结构是否属于'f1' 或者 't.*'
+            boolean isIdentifierOrStar = sqlNode.getClass().equals(SqlIdentifier.class)
+                    // sqlNode like 'f1'
+                    && (((SqlIdentifier) sqlNode).isSimple()
+                    // sqlNode like 't.*'
+                    || ((SqlIdentifier) sqlNode).isStar());
+
+            if (isAsNode || isIdentifierOrStar) {
+                sqlNodes.add(sqlNode);
                 continue;
             }
 
-            if (!selectList.get(index).getClass().equals(SqlIdentifier.class)) {
-                if (selectList.get(index).getKind().equals(SqlKind.LITERAL)) {
+            if (!sqlNode.getClass().equals(SqlIdentifier.class)) {
+                if (sqlNode.getKind().equals(SqlKind.LITERAL)) {
                     throw new IllegalArgumentException(String.format("Constants %s in the SELECT statement must be aliased!",
-                            selectList.get(index).toString()));
+                            sqlNode.toString()));
                 }
                 throw new RuntimeException(String.format("Illegal statement! Please check the statement: %s",
-                        selectList.get(index).toString()));
+                        sqlNode.toString()));
             }
 
-            sqlNodes.add(transformToAsNode(selectList.get(index)));
+            sqlNodes.add(transformToAsNode(sqlNode));
         }
         sqlSelect.setSelectList(sqlNodes);
     }