1017 lines
		
	
	
		
			20 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
			
		
		
	
	
			1017 lines
		
	
	
		
			20 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
***************   Case 1   ***************
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						|
SELECT COUNT(c1) AS c2 FROM t1 GROUP BY c2 HAVING c2 = 2;
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{
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  "stmt_type":1,
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  "table": [
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     {
 | 
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      "table_id":1,
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      "table_name":"t1",
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      "alias_name":"",
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      "table_type":0,
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						|
      "ref_id":1,
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						|
      "ref_query":null,
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      "database_name":"rongxuan"
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    }
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  ],
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  "joined_table": [
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  ],
 | 
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  "partition_express": [
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     {
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      "table_id":1,
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      "expression": {
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        "item_type":"T_FUN_SYS_PART_HASH",
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        "result_type":"BIGINT",
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        "expr_info": [
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          "IS_FUNC",
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          "CNT_CONST",
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          "CNT_COLUMN",
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          "CNT_FUNC"
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        ],
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        "rel_id": [
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          1
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        ],
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        "func":"partition_hash",
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        "children": [
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           {
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            "item_type":"T_OP_ADD",
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            "result_type":"BIGINT",
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            "expr_info": [
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              "CNT_CONST",
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              "CNT_COLUMN"
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            ],
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            "rel_id": [
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              1
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            ],
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            "children": [
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               {
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                "item_type":"T_REF_COLUMN",
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                "result_type":"INT",
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                "expr_info": [
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                  "IS_COLUMN",
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                  "CNT_COLUMN"
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                ],
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                "rel_id": [
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                  1
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                ],
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                "table_id":1,
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                "column_id":17,
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                "expr_level":0
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              },
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               {
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                "item_type":"T_INT",
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                "result_type":"BIGINT",
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                "expr_info": [
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                  "IS_CONST",
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                  "CNT_CONST"
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                ],
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                "rel_id": [
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                ],
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                "value": {
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                  "BIGINT":1
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                }
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              }
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            ]
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          }
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        ]
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      }
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    }
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  ],
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  "column": [
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     {
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      "column_id":17,
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      "column_name":"c2",
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      "table_id":1,
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      "obj_type":"INT",
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      "data_length":0,
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      "cs_type":45,
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      "cs_level":2,
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      "decimal_scale":0,
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      "expression": {
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        "item_type":"T_REF_COLUMN",
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        "result_type":"INT",
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        "expr_info": [
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          "IS_COLUMN",
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          "CNT_COLUMN"
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        ],
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        "rel_id": [
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          1
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        ],
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        "table_id":1,
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        "column_id":17,
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        "expr_level":0
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      }
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    },
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     {
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      "column_id":16,
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      "column_name":"c1",
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      "table_id":1,
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      "obj_type":"INT",
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      "data_length":0,
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      "cs_type":45,
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      "cs_level":2,
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      "decimal_scale":0,
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      "expression": {
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        "item_type":"T_REF_COLUMN",
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        "result_type":"INT",
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        "expr_info": [
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          "IS_COLUMN",
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          "CNT_COLUMN"
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        ],
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        "rel_id": [
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          1
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        ],
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        "table_id":1,
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        "column_id":16,
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        "expr_level":0
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      }
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    }
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  ],
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  "select": [
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     {
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      "expression": {
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        "item_type":"T_FUN_COUNT",
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        "result_type":"DECIMAL",
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        "expr_info": [
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          "IS_AGG",
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          "CNT_COLUMN",
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          "CNT_AGG"
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        ],
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        "rel_id": [
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          1
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        ],
 | 
						|
        "children": {
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          "item_type":"T_REF_COLUMN",
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          "result_type":"INT",
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          "expr_info": [
 | 
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            "IS_COLUMN",
 | 
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            "CNT_COLUMN"
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          ],
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          "rel_id": [
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            1
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          ],
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          "table_id":1,
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          "column_id":16,
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          "expr_level":0
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        },
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        "distinct":false
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      },
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      "table_id":-1,
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      "column_id":65509,
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      "is_alias":true,
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      "alias_name":"c2",
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      "expr_name":"c2",
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      "obj_type":"DECIMAL",
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      "decimal_scale":9223372036854775807
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    }
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  ],
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  "distinct":false,
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  "from": [
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     {
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      "table_id":1,
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      "is_join":false
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    }
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  ],
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  "where": [
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  ],
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  "group_by": [
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     {
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      "item_type":"T_REF_COLUMN",
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      "result_type":"INT",
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      "expr_info": [
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        "IS_COLUMN",
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        "CNT_COLUMN"
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      ],
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      "rel_id": [
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        1
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      ],
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      "table_id":1,
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      "column_id":17,
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      "expr_level":0
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    }
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  ],
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  "having": [
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     {
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      "item_type":"T_OP_EQ",
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      "result_type":"TINYINT",
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      "expr_info": [
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        "CNT_CONST",
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        "CNT_COLUMN",
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        "IS_SIMPLE_COND"
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      ],
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      "rel_id": [
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        1
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      ],
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						|
      "children": [
 | 
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         {
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          "item_type":"T_REF_COLUMN",
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          "result_type":"INT",
 | 
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          "expr_info": [
 | 
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            "IS_COLUMN",
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            "CNT_COLUMN"
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          ],
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          "rel_id": [
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            1
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          ],
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						|
          "table_id":1,
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          "column_id":17,
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          "expr_level":0
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        },
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         {
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          "item_type":"T_INT",
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          "result_type":"BIGINT",
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          "expr_info": [
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            "IS_CONST",
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            "CNT_CONST"
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          ],
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          "rel_id": [
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          ],
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          "value": {
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            "BIGINT":2
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          }
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        }
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      ]
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    }
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  ],
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  "aggr_func": [
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     {
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      "column_id":65519,
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      "expression": {
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        "item_type":"T_FUN_COUNT",
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        "result_type":"DECIMAL",
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        "expr_info": [
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          "IS_AGG",
 | 
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          "CNT_COLUMN",
 | 
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          "CNT_AGG"
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        ],
 | 
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        "rel_id": [
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          1
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        ],
 | 
						|
        "children": {
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						|
          "item_type":"T_REF_COLUMN",
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						|
          "result_type":"INT",
 | 
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          "expr_info": [
 | 
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            "IS_COLUMN",
 | 
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            "CNT_COLUMN"
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          ],
 | 
						|
          "rel_id": [
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            1
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						|
          ],
 | 
						|
          "table_id":1,
 | 
						|
          "column_id":16,
 | 
						|
          "expr_level":0
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        },
 | 
						|
        "distinct":false
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      }
 | 
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    }
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  ],
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  "order_by": [
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  ],
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  "limit":null,
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  "offset":null,
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  "for_update":false,
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  "wait":-1,
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  "show_table_id":-1,
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  "when": [
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  ],
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  "hint": {
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    "read_static":false,
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    "frozen_version":-1,
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    "topk_precision":-1,
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    "sharding_minimum_row_count":0,
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    "query_timeout":-1,
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    "hotspot":false,
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    "index": [
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    ],
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    "read_consistency":0,
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    "join_order": [
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    ],
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    "merge_hint_idxs":"0, 0, 0, 0, 0, 0, 0, 0",
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    "hash_hint_idxs":"0, 0, 0, 0, 0, 0, 0, 0",
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						|
    "nl_hint_idxs":"0, 0, 0, 0, 0, 0, 0, 0",
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    "part_hints": [
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    ]
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  },
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  "query_context": {
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    "param_num":0
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  },
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  "equal_sets": [
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  ]
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}
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***************   Case 2   ***************
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select * from t1 group by c1 having c1 > 5;
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{
 | 
						|
  "stmt_type":1,
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  "table": [
 | 
						|
     {
 | 
						|
      "table_id":1,
 | 
						|
      "table_name":"t1",
 | 
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      "alias_name":"",
 | 
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      "table_type":0,
 | 
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      "ref_id":1,
 | 
						|
      "ref_query":null,
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      "database_name":"rongxuan"
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    }
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  ],
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  "joined_table": [
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  ],
 | 
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  "partition_express": [
 | 
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     {
 | 
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      "table_id":1,
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      "expression": {
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						|
        "item_type":"T_FUN_SYS_PART_HASH",
 | 
						|
        "result_type":"BIGINT",
 | 
						|
        "expr_info": [
 | 
						|
          "IS_FUNC",
 | 
						|
          "CNT_CONST",
 | 
						|
          "CNT_COLUMN",
 | 
						|
          "CNT_FUNC"
 | 
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        ],
 | 
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        "rel_id": [
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          1
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						|
        ],
 | 
						|
        "func":"partition_hash",
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						|
        "children": [
 | 
						|
           {
 | 
						|
            "item_type":"T_OP_ADD",
 | 
						|
            "result_type":"BIGINT",
 | 
						|
            "expr_info": [
 | 
						|
              "CNT_CONST",
 | 
						|
              "CNT_COLUMN"
 | 
						|
            ],
 | 
						|
            "rel_id": [
 | 
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              1
 | 
						|
            ],
 | 
						|
            "children": [
 | 
						|
               {
 | 
						|
                "item_type":"T_REF_COLUMN",
 | 
						|
                "result_type":"INT",
 | 
						|
                "expr_info": [
 | 
						|
                  "IS_COLUMN",
 | 
						|
                  "CNT_COLUMN"
 | 
						|
                ],
 | 
						|
                "rel_id": [
 | 
						|
                  1
 | 
						|
                ],
 | 
						|
                "table_id":1,
 | 
						|
                "column_id":17,
 | 
						|
                "expr_level":0
 | 
						|
              },
 | 
						|
               {
 | 
						|
                "item_type":"T_INT",
 | 
						|
                "result_type":"BIGINT",
 | 
						|
                "expr_info": [
 | 
						|
                  "IS_CONST",
 | 
						|
                  "CNT_CONST"
 | 
						|
                ],
 | 
						|
                "rel_id": [
 | 
						|
                ],
 | 
						|
                "value": {
 | 
						|
                  "BIGINT":1
 | 
						|
                }
 | 
						|
              }
 | 
						|
            ]
 | 
						|
          }
 | 
						|
        ]
 | 
						|
      }
 | 
						|
    }
 | 
						|
  ],
 | 
						|
  "column": [
 | 
						|
     {
 | 
						|
      "column_id":17,
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      "column_name":"c2",
 | 
						|
      "table_id":1,
 | 
						|
      "obj_type":"INT",
 | 
						|
      "data_length":0,
 | 
						|
      "cs_type":45,
 | 
						|
      "cs_level":2,
 | 
						|
      "decimal_scale":0,
 | 
						|
      "expression": {
 | 
						|
        "item_type":"T_REF_COLUMN",
 | 
						|
        "result_type":"INT",
 | 
						|
        "expr_info": [
 | 
						|
          "IS_COLUMN",
 | 
						|
          "CNT_COLUMN"
 | 
						|
        ],
 | 
						|
        "rel_id": [
 | 
						|
          1
 | 
						|
        ],
 | 
						|
        "table_id":1,
 | 
						|
        "column_id":17,
 | 
						|
        "expr_level":0
 | 
						|
      }
 | 
						|
    },
 | 
						|
     {
 | 
						|
      "column_id":16,
 | 
						|
      "column_name":"c1",
 | 
						|
      "table_id":1,
 | 
						|
      "obj_type":"INT",
 | 
						|
      "data_length":0,
 | 
						|
      "cs_type":0,
 | 
						|
      "cs_level":7,
 | 
						|
      "decimal_scale":0,
 | 
						|
      "expression": {
 | 
						|
        "item_type":"T_REF_COLUMN",
 | 
						|
        "result_type":"INT",
 | 
						|
        "expr_info": [
 | 
						|
          "IS_COLUMN",
 | 
						|
          "CNT_COLUMN"
 | 
						|
        ],
 | 
						|
        "rel_id": [
 | 
						|
          1
 | 
						|
        ],
 | 
						|
        "table_id":1,
 | 
						|
        "column_id":16,
 | 
						|
        "expr_level":0
 | 
						|
      }
 | 
						|
    }
 | 
						|
  ],
 | 
						|
  "select": [
 | 
						|
     {
 | 
						|
      "expression": {
 | 
						|
        "item_type":"T_REF_COLUMN",
 | 
						|
        "result_type":"INT",
 | 
						|
        "expr_info": [
 | 
						|
          "IS_COLUMN",
 | 
						|
          "CNT_COLUMN"
 | 
						|
        ],
 | 
						|
        "rel_id": [
 | 
						|
          1
 | 
						|
        ],
 | 
						|
        "table_id":1,
 | 
						|
        "column_id":16,
 | 
						|
        "expr_level":0
 | 
						|
      },
 | 
						|
      "table_id":-1,
 | 
						|
      "column_id":65519,
 | 
						|
      "is_alias":false,
 | 
						|
      "alias_name":"c1",
 | 
						|
      "expr_name":"c1",
 | 
						|
      "obj_type":"INT",
 | 
						|
      "decimal_scale":0
 | 
						|
    },
 | 
						|
     {
 | 
						|
      "expression": {
 | 
						|
        "item_type":"T_REF_COLUMN",
 | 
						|
        "result_type":"INT",
 | 
						|
        "expr_info": [
 | 
						|
          "IS_COLUMN",
 | 
						|
          "CNT_COLUMN"
 | 
						|
        ],
 | 
						|
        "rel_id": [
 | 
						|
          1
 | 
						|
        ],
 | 
						|
        "table_id":1,
 | 
						|
        "column_id":17,
 | 
						|
        "expr_level":0
 | 
						|
      },
 | 
						|
      "table_id":-1,
 | 
						|
      "column_id":65518,
 | 
						|
      "is_alias":false,
 | 
						|
      "alias_name":"c2",
 | 
						|
      "expr_name":"c2",
 | 
						|
      "obj_type":"INT",
 | 
						|
      "decimal_scale":0
 | 
						|
    }
 | 
						|
  ],
 | 
						|
  "distinct":false,
 | 
						|
  "from": [
 | 
						|
     {
 | 
						|
      "table_id":1,
 | 
						|
      "is_join":false
 | 
						|
    }
 | 
						|
  ],
 | 
						|
  "where": [
 | 
						|
  ],
 | 
						|
  "group_by": [
 | 
						|
     {
 | 
						|
      "item_type":"T_REF_COLUMN",
 | 
						|
      "result_type":"INT",
 | 
						|
      "expr_info": [
 | 
						|
        "IS_COLUMN",
 | 
						|
        "CNT_COLUMN"
 | 
						|
      ],
 | 
						|
      "rel_id": [
 | 
						|
        1
 | 
						|
      ],
 | 
						|
      "table_id":1,
 | 
						|
      "column_id":16,
 | 
						|
      "expr_level":0
 | 
						|
    }
 | 
						|
  ],
 | 
						|
  "having": [
 | 
						|
     {
 | 
						|
      "item_type":"T_OP_GT",
 | 
						|
      "result_type":"TINYINT",
 | 
						|
      "expr_info": [
 | 
						|
        "CNT_CONST",
 | 
						|
        "CNT_COLUMN",
 | 
						|
        "IS_RANGE_COND"
 | 
						|
      ],
 | 
						|
      "rel_id": [
 | 
						|
        1
 | 
						|
      ],
 | 
						|
      "children": [
 | 
						|
         {
 | 
						|
          "item_type":"T_REF_COLUMN",
 | 
						|
          "result_type":"INT",
 | 
						|
          "expr_info": [
 | 
						|
            "IS_COLUMN",
 | 
						|
            "CNT_COLUMN"
 | 
						|
          ],
 | 
						|
          "rel_id": [
 | 
						|
            1
 | 
						|
          ],
 | 
						|
          "table_id":1,
 | 
						|
          "column_id":16,
 | 
						|
          "expr_level":0
 | 
						|
        },
 | 
						|
         {
 | 
						|
          "item_type":"T_INT",
 | 
						|
          "result_type":"BIGINT",
 | 
						|
          "expr_info": [
 | 
						|
            "IS_CONST",
 | 
						|
            "CNT_CONST"
 | 
						|
          ],
 | 
						|
          "rel_id": [
 | 
						|
          ],
 | 
						|
          "value": {
 | 
						|
            "BIGINT":5
 | 
						|
          }
 | 
						|
        }
 | 
						|
      ]
 | 
						|
    }
 | 
						|
  ],
 | 
						|
  "aggr_func": [
 | 
						|
  ],
 | 
						|
  "order_by": [
 | 
						|
  ],
 | 
						|
  "limit":null,
 | 
						|
  "offset":null,
 | 
						|
  "for_update":false,
 | 
						|
  "wait":-1,
 | 
						|
  "show_table_id":-1,
 | 
						|
  "when": [
 | 
						|
  ],
 | 
						|
  "hint": {
 | 
						|
    "read_static":false,
 | 
						|
    "frozen_version":-1,
 | 
						|
    "topk_precision":-1,
 | 
						|
    "sharding_minimum_row_count":0,
 | 
						|
    "query_timeout":-1,
 | 
						|
    "hotspot":false,
 | 
						|
    "index": [
 | 
						|
    ],
 | 
						|
    "read_consistency":0,
 | 
						|
    "join_order": [
 | 
						|
    ],
 | 
						|
    "merge_hint_idxs":"0, 0, 0, 0, 0, 0, 0, 0",
 | 
						|
    "hash_hint_idxs":"0, 0, 0, 0, 0, 0, 0, 0",
 | 
						|
    "nl_hint_idxs":"0, 0, 0, 0, 0, 0, 0, 0",
 | 
						|
    "part_hints": [
 | 
						|
    ]
 | 
						|
  },
 | 
						|
  "query_context": {
 | 
						|
    "param_num":0
 | 
						|
  },
 | 
						|
  "equal_sets": [
 | 
						|
  ]
 | 
						|
}
 | 
						|
***************   Case 3   ***************
 | 
						|
select t1.c1, t2.c1 from t1, t2 having t1.c1 > 5 and t2.c1=t1.c1
 | 
						|
{
 | 
						|
  "stmt_type":1,
 | 
						|
  "table": [
 | 
						|
     {
 | 
						|
      "table_id":1,
 | 
						|
      "table_name":"t1",
 | 
						|
      "alias_name":"",
 | 
						|
      "table_type":0,
 | 
						|
      "ref_id":1,
 | 
						|
      "ref_query":null,
 | 
						|
      "database_name":"rongxuan"
 | 
						|
    },
 | 
						|
     {
 | 
						|
      "table_id":2,
 | 
						|
      "table_name":"t2",
 | 
						|
      "alias_name":"",
 | 
						|
      "table_type":0,
 | 
						|
      "ref_id":2,
 | 
						|
      "ref_query":null,
 | 
						|
      "database_name":"rongxuan"
 | 
						|
    }
 | 
						|
  ],
 | 
						|
  "joined_table": [
 | 
						|
  ],
 | 
						|
  "partition_express": [
 | 
						|
     {
 | 
						|
      "table_id":1,
 | 
						|
      "expression": {
 | 
						|
        "item_type":"T_FUN_SYS_PART_HASH",
 | 
						|
        "result_type":"BIGINT",
 | 
						|
        "expr_info": [
 | 
						|
          "IS_FUNC",
 | 
						|
          "CNT_CONST",
 | 
						|
          "CNT_COLUMN",
 | 
						|
          "CNT_FUNC"
 | 
						|
        ],
 | 
						|
        "rel_id": [
 | 
						|
          1
 | 
						|
        ],
 | 
						|
        "func":"partition_hash",
 | 
						|
        "children": [
 | 
						|
           {
 | 
						|
            "item_type":"T_OP_ADD",
 | 
						|
            "result_type":"BIGINT",
 | 
						|
            "expr_info": [
 | 
						|
              "CNT_CONST",
 | 
						|
              "CNT_COLUMN"
 | 
						|
            ],
 | 
						|
            "rel_id": [
 | 
						|
              1
 | 
						|
            ],
 | 
						|
            "children": [
 | 
						|
               {
 | 
						|
                "item_type":"T_REF_COLUMN",
 | 
						|
                "result_type":"INT",
 | 
						|
                "expr_info": [
 | 
						|
                  "IS_COLUMN",
 | 
						|
                  "CNT_COLUMN"
 | 
						|
                ],
 | 
						|
                "rel_id": [
 | 
						|
                  1
 | 
						|
                ],
 | 
						|
                "table_id":1,
 | 
						|
                "column_id":17,
 | 
						|
                "expr_level":0
 | 
						|
              },
 | 
						|
               {
 | 
						|
                "item_type":"T_INT",
 | 
						|
                "result_type":"BIGINT",
 | 
						|
                "expr_info": [
 | 
						|
                  "IS_CONST",
 | 
						|
                  "CNT_CONST"
 | 
						|
                ],
 | 
						|
                "rel_id": [
 | 
						|
                ],
 | 
						|
                "value": {
 | 
						|
                  "BIGINT":1
 | 
						|
                }
 | 
						|
              }
 | 
						|
            ]
 | 
						|
          }
 | 
						|
        ]
 | 
						|
      }
 | 
						|
    },
 | 
						|
     {
 | 
						|
      "table_id":2,
 | 
						|
      "expression": {
 | 
						|
        "item_type":"T_FUN_SYS_PART_KEY",
 | 
						|
        "result_type":"BIGINT",
 | 
						|
        "expr_info": [
 | 
						|
          "IS_FUNC",
 | 
						|
          "CNT_COLUMN",
 | 
						|
          "CNT_FUNC"
 | 
						|
        ],
 | 
						|
        "rel_id": [
 | 
						|
          2
 | 
						|
        ],
 | 
						|
        "func":"partition_key",
 | 
						|
        "children": [
 | 
						|
           {
 | 
						|
            "item_type":"T_REF_COLUMN",
 | 
						|
            "result_type":"INT",
 | 
						|
            "expr_info": [
 | 
						|
              "IS_COLUMN",
 | 
						|
              "CNT_COLUMN"
 | 
						|
            ],
 | 
						|
            "rel_id": [
 | 
						|
              2
 | 
						|
            ],
 | 
						|
            "table_id":2,
 | 
						|
            "column_id":17,
 | 
						|
            "expr_level":0
 | 
						|
          },
 | 
						|
           {
 | 
						|
            "item_type":"T_REF_COLUMN",
 | 
						|
            "result_type":"VARCHAR",
 | 
						|
            "expr_info": [
 | 
						|
              "IS_COLUMN",
 | 
						|
              "CNT_COLUMN"
 | 
						|
            ],
 | 
						|
            "rel_id": [
 | 
						|
              2
 | 
						|
            ],
 | 
						|
            "table_id":2,
 | 
						|
            "column_id":18,
 | 
						|
            "expr_level":0
 | 
						|
          }
 | 
						|
        ]
 | 
						|
      }
 | 
						|
    }
 | 
						|
  ],
 | 
						|
  "column": [
 | 
						|
     {
 | 
						|
      "column_id":17,
 | 
						|
      "column_name":"c2",
 | 
						|
      "table_id":1,
 | 
						|
      "obj_type":"INT",
 | 
						|
      "data_length":0,
 | 
						|
      "cs_type":45,
 | 
						|
      "cs_level":2,
 | 
						|
      "decimal_scale":0,
 | 
						|
      "expression": {
 | 
						|
        "item_type":"T_REF_COLUMN",
 | 
						|
        "result_type":"INT",
 | 
						|
        "expr_info": [
 | 
						|
          "IS_COLUMN",
 | 
						|
          "CNT_COLUMN"
 | 
						|
        ],
 | 
						|
        "rel_id": [
 | 
						|
          1
 | 
						|
        ],
 | 
						|
        "table_id":1,
 | 
						|
        "column_id":17,
 | 
						|
        "expr_level":0
 | 
						|
      }
 | 
						|
    },
 | 
						|
     {
 | 
						|
      "column_id":17,
 | 
						|
      "column_name":"c2",
 | 
						|
      "table_id":2,
 | 
						|
      "obj_type":"INT",
 | 
						|
      "data_length":0,
 | 
						|
      "cs_type":45,
 | 
						|
      "cs_level":2,
 | 
						|
      "decimal_scale":0,
 | 
						|
      "expression": {
 | 
						|
        "item_type":"T_REF_COLUMN",
 | 
						|
        "result_type":"INT",
 | 
						|
        "expr_info": [
 | 
						|
          "IS_COLUMN",
 | 
						|
          "CNT_COLUMN"
 | 
						|
        ],
 | 
						|
        "rel_id": [
 | 
						|
          2
 | 
						|
        ],
 | 
						|
        "table_id":2,
 | 
						|
        "column_id":17,
 | 
						|
        "expr_level":0
 | 
						|
      }
 | 
						|
    },
 | 
						|
     {
 | 
						|
      "column_id":18,
 | 
						|
      "column_name":"c3",
 | 
						|
      "table_id":2,
 | 
						|
      "obj_type":"VARCHAR",
 | 
						|
      "data_length":0,
 | 
						|
      "cs_type":45,
 | 
						|
      "cs_level":2,
 | 
						|
      "decimal_scale":0,
 | 
						|
      "expression": {
 | 
						|
        "item_type":"T_REF_COLUMN",
 | 
						|
        "result_type":"VARCHAR",
 | 
						|
        "expr_info": [
 | 
						|
          "IS_COLUMN",
 | 
						|
          "CNT_COLUMN"
 | 
						|
        ],
 | 
						|
        "rel_id": [
 | 
						|
          2
 | 
						|
        ],
 | 
						|
        "table_id":2,
 | 
						|
        "column_id":18,
 | 
						|
        "expr_level":0
 | 
						|
      }
 | 
						|
    },
 | 
						|
     {
 | 
						|
      "column_id":16,
 | 
						|
      "column_name":"c1",
 | 
						|
      "table_id":1,
 | 
						|
      "obj_type":"INT",
 | 
						|
      "data_length":0,
 | 
						|
      "cs_type":45,
 | 
						|
      "cs_level":2,
 | 
						|
      "decimal_scale":0,
 | 
						|
      "expression": {
 | 
						|
        "item_type":"T_REF_COLUMN",
 | 
						|
        "result_type":"INT",
 | 
						|
        "expr_info": [
 | 
						|
          "IS_COLUMN",
 | 
						|
          "CNT_COLUMN"
 | 
						|
        ],
 | 
						|
        "rel_id": [
 | 
						|
          1
 | 
						|
        ],
 | 
						|
        "table_id":1,
 | 
						|
        "column_id":16,
 | 
						|
        "expr_level":0
 | 
						|
      }
 | 
						|
    },
 | 
						|
     {
 | 
						|
      "column_id":16,
 | 
						|
      "column_name":"c1",
 | 
						|
      "table_id":2,
 | 
						|
      "obj_type":"INT",
 | 
						|
      "data_length":0,
 | 
						|
      "cs_type":45,
 | 
						|
      "cs_level":2,
 | 
						|
      "decimal_scale":0,
 | 
						|
      "expression": {
 | 
						|
        "item_type":"T_REF_COLUMN",
 | 
						|
        "result_type":"INT",
 | 
						|
        "expr_info": [
 | 
						|
          "IS_COLUMN",
 | 
						|
          "CNT_COLUMN"
 | 
						|
        ],
 | 
						|
        "rel_id": [
 | 
						|
          2
 | 
						|
        ],
 | 
						|
        "table_id":2,
 | 
						|
        "column_id":16,
 | 
						|
        "expr_level":0
 | 
						|
      }
 | 
						|
    }
 | 
						|
  ],
 | 
						|
  "select": [
 | 
						|
     {
 | 
						|
      "expression": {
 | 
						|
        "item_type":"T_REF_COLUMN",
 | 
						|
        "result_type":"INT",
 | 
						|
        "expr_info": [
 | 
						|
          "IS_COLUMN",
 | 
						|
          "CNT_COLUMN"
 | 
						|
        ],
 | 
						|
        "rel_id": [
 | 
						|
          1
 | 
						|
        ],
 | 
						|
        "table_id":1,
 | 
						|
        "column_id":16,
 | 
						|
        "expr_level":0
 | 
						|
      },
 | 
						|
      "table_id":-1,
 | 
						|
      "column_id":65519,
 | 
						|
      "is_alias":false,
 | 
						|
      "alias_name":"c1",
 | 
						|
      "expr_name":"c1",
 | 
						|
      "obj_type":"INT",
 | 
						|
      "decimal_scale":0
 | 
						|
    },
 | 
						|
     {
 | 
						|
      "expression": {
 | 
						|
        "item_type":"T_REF_COLUMN",
 | 
						|
        "result_type":"INT",
 | 
						|
        "expr_info": [
 | 
						|
          "IS_COLUMN",
 | 
						|
          "CNT_COLUMN"
 | 
						|
        ],
 | 
						|
        "rel_id": [
 | 
						|
          2
 | 
						|
        ],
 | 
						|
        "table_id":2,
 | 
						|
        "column_id":16,
 | 
						|
        "expr_level":0
 | 
						|
      },
 | 
						|
      "table_id":-1,
 | 
						|
      "column_id":65518,
 | 
						|
      "is_alias":false,
 | 
						|
      "alias_name":"c1",
 | 
						|
      "expr_name":"c1",
 | 
						|
      "obj_type":"INT",
 | 
						|
      "decimal_scale":0
 | 
						|
    }
 | 
						|
  ],
 | 
						|
  "distinct":false,
 | 
						|
  "from": [
 | 
						|
     {
 | 
						|
      "table_id":1,
 | 
						|
      "is_join":false
 | 
						|
    },
 | 
						|
     {
 | 
						|
      "table_id":2,
 | 
						|
      "is_join":false
 | 
						|
    }
 | 
						|
  ],
 | 
						|
  "where": [
 | 
						|
  ],
 | 
						|
  "group_by": [
 | 
						|
  ],
 | 
						|
  "having": [
 | 
						|
     {
 | 
						|
      "item_type":"T_OP_GT",
 | 
						|
      "result_type":"TINYINT",
 | 
						|
      "expr_info": [
 | 
						|
        "CNT_CONST",
 | 
						|
        "CNT_COLUMN",
 | 
						|
        "IS_RANGE_COND"
 | 
						|
      ],
 | 
						|
      "rel_id": [
 | 
						|
        1
 | 
						|
      ],
 | 
						|
      "children": [
 | 
						|
         {
 | 
						|
          "item_type":"T_REF_COLUMN",
 | 
						|
          "result_type":"INT",
 | 
						|
          "expr_info": [
 | 
						|
            "IS_COLUMN",
 | 
						|
            "CNT_COLUMN"
 | 
						|
          ],
 | 
						|
          "rel_id": [
 | 
						|
            1
 | 
						|
          ],
 | 
						|
          "table_id":1,
 | 
						|
          "column_id":16,
 | 
						|
          "expr_level":0
 | 
						|
        },
 | 
						|
         {
 | 
						|
          "item_type":"T_INT",
 | 
						|
          "result_type":"BIGINT",
 | 
						|
          "expr_info": [
 | 
						|
            "IS_CONST",
 | 
						|
            "CNT_CONST"
 | 
						|
          ],
 | 
						|
          "rel_id": [
 | 
						|
          ],
 | 
						|
          "value": {
 | 
						|
            "BIGINT":5
 | 
						|
          }
 | 
						|
        }
 | 
						|
      ]
 | 
						|
    },
 | 
						|
     {
 | 
						|
      "item_type":"T_OP_EQ",
 | 
						|
      "result_type":"TINYINT",
 | 
						|
      "expr_info": [
 | 
						|
        "CNT_COLUMN",
 | 
						|
        "IS_JOIN_COND"
 | 
						|
      ],
 | 
						|
      "rel_id": [
 | 
						|
        1,
 | 
						|
        2
 | 
						|
      ],
 | 
						|
      "children": [
 | 
						|
         {
 | 
						|
          "item_type":"T_REF_COLUMN",
 | 
						|
          "result_type":"INT",
 | 
						|
          "expr_info": [
 | 
						|
            "IS_COLUMN",
 | 
						|
            "CNT_COLUMN"
 | 
						|
          ],
 | 
						|
          "rel_id": [
 | 
						|
            2
 | 
						|
          ],
 | 
						|
          "table_id":2,
 | 
						|
          "column_id":16,
 | 
						|
          "expr_level":0
 | 
						|
        },
 | 
						|
         {
 | 
						|
          "item_type":"T_REF_COLUMN",
 | 
						|
          "result_type":"INT",
 | 
						|
          "expr_info": [
 | 
						|
            "IS_COLUMN",
 | 
						|
            "CNT_COLUMN"
 | 
						|
          ],
 | 
						|
          "rel_id": [
 | 
						|
            1
 | 
						|
          ],
 | 
						|
          "table_id":1,
 | 
						|
          "column_id":16,
 | 
						|
          "expr_level":0
 | 
						|
        }
 | 
						|
      ]
 | 
						|
    }
 | 
						|
  ],
 | 
						|
  "aggr_func": [
 | 
						|
  ],
 | 
						|
  "order_by": [
 | 
						|
  ],
 | 
						|
  "limit":null,
 | 
						|
  "offset":null,
 | 
						|
  "for_update":false,
 | 
						|
  "wait":-1,
 | 
						|
  "show_table_id":-1,
 | 
						|
  "when": [
 | 
						|
  ],
 | 
						|
  "hint": {
 | 
						|
    "read_static":false,
 | 
						|
    "frozen_version":-1,
 | 
						|
    "topk_precision":-1,
 | 
						|
    "sharding_minimum_row_count":0,
 | 
						|
    "query_timeout":-1,
 | 
						|
    "hotspot":false,
 | 
						|
    "index": [
 | 
						|
    ],
 | 
						|
    "read_consistency":0,
 | 
						|
    "join_order": [
 | 
						|
    ],
 | 
						|
    "merge_hint_idxs":"0, 0, 0, 0, 0, 0, 0, 0",
 | 
						|
    "hash_hint_idxs":"0, 0, 0, 0, 0, 0, 0, 0",
 | 
						|
    "nl_hint_idxs":"0, 0, 0, 0, 0, 0, 0, 0",
 | 
						|
    "part_hints": [
 | 
						|
    ]
 | 
						|
  },
 | 
						|
  "query_context": {
 | 
						|
    "param_num":0
 | 
						|
  },
 | 
						|
  "equal_sets": [
 | 
						|
  ]
 | 
						|
}
 |