4305 lines
		
	
	
		
			104 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
			
		
		
	
	
			4305 lines
		
	
	
		
			104 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
| ***************   Case 1   ***************
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| drop database if exists ambiguous;
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| {
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|   "drop_database_arg":"tenant_id",
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|   "database_name":"ambiguous",
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|   "if_exist":true,
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|   "to_recyclebin":false
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| }
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| ***************   Case 2   ***************
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| create database ambiguous;
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| {
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|   "create_database_arg":"database_schema",
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|   "database_id":-1,
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|   "schema_version":1,
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|   "database_name":"ambiguous",
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|   "replica_num":0,
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|   "zone_list": [
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|   ],
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|   "primary_zone":"",
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|   "charset_type":2,
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|   "collation_type":"utf8mb4_general_ci",
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|   "name_case_mode":-1,
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|   "comment":"",
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|   "read_only":false,
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|   "default_tablegroup_id":-1,
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|   "default_tablegroup_name":"",
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|   "in_recyclebin":false,
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|   "primary_zone_array": [
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|   ]
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| }
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| ***************   Case 3   ***************
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| use ambiguous;
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| {
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|   "stmt_type":97
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| }
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| ***************   Case 4   ***************
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| drop table if exists t1, t2, t3;
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| {
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|   "stmt_type":21,
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|   "drop_table_arg": {
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|     "tenant_id":1,
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|     "table_type":3,
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|     "tables": [
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|        {
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|         "database_name":"ambiguous",
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|         "table_name":"t1"
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|       },
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|        {
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|         "database_name":"ambiguous",
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|         "table_name":"t2"
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|       },
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|        {
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|         "database_name":"ambiguous",
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|         "table_name":"t3"
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|       }
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|     ],
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|     "if_exist":true,
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|     "to_recyclebin":false,
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|     "session_id":-1,
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|     "sess_create_time":0
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|   }
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| }
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| ***************   Case 5   ***************
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| create table t1(c1 int primary key, c2 int);
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| {"ObTableStmt":{"partition_fun_expr":[], "range_values_exprs":[], "list_values_exprs":[], "index_partition_resolve_results":[], "part_type":8}, "stmt_type":20, "create_table_arg":{"if_not_exist":false, "schema":{"simple_table_schema":{"tenant_id":1, "database_id":18446744073709551615, "tablegroup_id":1099511627777, "table_id":18446744073709551615, "table_name":"t1", "replica_num":0, "previous_locality_str":"", "min_partition_id":0, "session_id":0, "index_type":0, "table_type":3, "data_table_id":0, "name_casemode":-1, "schema_version":0, "part_level":0, "part_option":{"part_func_type":0, "part_func_expr":"", "part_num":1, "partition_cnt_within_partition_table":-1, "max_used_part_id":0}, "sub_part_option":{"part_func_type":0, "part_func_expr":"", "part_num":1, "partition_cnt_within_partition_table":-1, "max_used_part_id":-1}, "locality_str":"", "zone_list":[], "primary_zone":"", "part_num":0, "subpart_num":0, "partition_num":1, "subpartition_num":0, "partition_array":[{"BasePartition":{"tenant_id":18446744073709551615, "table_id":18446744073709551615, "part_id":0, "name":"p0", "high_bound_val":, "list_row_values":[], "part_idx":0}, "mapping_pg_part_id":-1}], "subpartition_array":null, "index_status":1, "binding":false, "duplicate_scope":0}, "max_used_column_id":17, "max_used_constraint_id":0, "sess_active_time":0, "rowkey_column_num":1, "index_column_num":0, "rowkey_split_pos":0, "block_size":16384, "is_use_bloomfilter":false, "progressive_merge_num":0, "tablet_size":134217728, "pctfree":10, "load_type":0, "index_using_type":0, "def_type":1, "charset_type":2, "collation_type":45, "create_mem_version":0, "index_status":1, "partition_status":0, "code_version":1, "last_modified_frozen_version":0, "comment":"", "pk_comment":"", "create_host":"", "zone_replica_attr_array":[], "region_replica_num_array":[], "tablegroup_name":"", "compress_func_name":"zstd_1.0", "row_store_type":1, "store_format":3, "expire_info":"", "view_schema":{"view_definition":"", "check_option":"none", "is_updatable":"false", "is_materialized":"false"}, "autoinc_column_id":0, "auto_increment":1, "read_only":false, "primary_zone_array":[], "index_tid_array":[], "mv_tid_array":[], "aux_vp_tid_array":[], "base_table_ids":[], "rowkey_info":{"columns":[{"length":0, "column_id":16, "type":{"type":"INT", "collation":"binary", "coercibility":"NUMERIC"}, "order":0, "fulltext_flag":false}], "capacity":1}, "partition_key_info":{"columns":null, "capacity":0}, "aux_vp_tid_array":[]}, "index_arg_list":[], "constraint_list":[], "db_name":"ambiguous", "last_replay_log_id":0, "foreign_key_arg_list":[], "vertical_partition_arg_list":[]}, "index_arg_list":[]}
 | |
| ***************   Case 6   ***************
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| create table t2(c1 int primary key, c2 int);
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| {"ObTableStmt":{"partition_fun_expr":[], "range_values_exprs":[], "list_values_exprs":[], "index_partition_resolve_results":[], "part_type":8}, "stmt_type":20, "create_table_arg":{"if_not_exist":false, "schema":{"simple_table_schema":{"tenant_id":1, "database_id":18446744073709551615, "tablegroup_id":1099511627777, "table_id":18446744073709551615, "table_name":"t2", "replica_num":0, "previous_locality_str":"", "min_partition_id":0, "session_id":0, "index_type":0, "table_type":3, "data_table_id":0, "name_casemode":-1, "schema_version":0, "part_level":0, "part_option":{"part_func_type":0, "part_func_expr":"", "part_num":1, "partition_cnt_within_partition_table":-1, "max_used_part_id":0}, "sub_part_option":{"part_func_type":0, "part_func_expr":"", "part_num":1, "partition_cnt_within_partition_table":-1, "max_used_part_id":-1}, "locality_str":"", "zone_list":[], "primary_zone":"", "part_num":0, "subpart_num":0, "partition_num":1, "subpartition_num":0, "partition_array":[{"BasePartition":{"tenant_id":18446744073709551615, "table_id":18446744073709551615, "part_id":0, "name":"p0", "high_bound_val":, "list_row_values":[], "part_idx":0}, "mapping_pg_part_id":-1}], "subpartition_array":null, "index_status":1, "binding":false, "duplicate_scope":0}, "max_used_column_id":17, "max_used_constraint_id":0, "sess_active_time":0, "rowkey_column_num":1, "index_column_num":0, "rowkey_split_pos":0, "block_size":16384, "is_use_bloomfilter":false, "progressive_merge_num":0, "tablet_size":134217728, "pctfree":10, "load_type":0, "index_using_type":0, "def_type":1, "charset_type":2, "collation_type":45, "create_mem_version":0, "index_status":1, "partition_status":0, "code_version":1, "last_modified_frozen_version":0, "comment":"", "pk_comment":"", "create_host":"", "zone_replica_attr_array":[], "region_replica_num_array":[], "tablegroup_name":"", "compress_func_name":"zstd_1.0", "row_store_type":1, "store_format":3, "expire_info":"", "view_schema":{"view_definition":"", "check_option":"none", "is_updatable":"false", "is_materialized":"false"}, "autoinc_column_id":0, "auto_increment":1, "read_only":false, "primary_zone_array":[], "index_tid_array":[], "mv_tid_array":[], "aux_vp_tid_array":[], "base_table_ids":[], "rowkey_info":{"columns":[{"length":0, "column_id":16, "type":{"type":"INT", "collation":"binary", "coercibility":"NUMERIC"}, "order":0, "fulltext_flag":false}], "capacity":1}, "partition_key_info":{"columns":null, "capacity":0}, "aux_vp_tid_array":[]}, "index_arg_list":[], "constraint_list":[], "db_name":"ambiguous", "last_replay_log_id":0, "foreign_key_arg_list":[], "vertical_partition_arg_list":[]}, "index_arg_list":[]}
 | |
| ***************   Case 7   ***************
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| create table t3(c1 int primary key, c2 int);
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| {"ObTableStmt":{"partition_fun_expr":[], "range_values_exprs":[], "list_values_exprs":[], "index_partition_resolve_results":[], "part_type":8}, "stmt_type":20, "create_table_arg":{"if_not_exist":false, "schema":{"simple_table_schema":{"tenant_id":1, "database_id":18446744073709551615, "tablegroup_id":1099511627777, "table_id":18446744073709551615, "table_name":"t3", "replica_num":0, "previous_locality_str":"", "min_partition_id":0, "session_id":0, "index_type":0, "table_type":3, "data_table_id":0, "name_casemode":-1, "schema_version":0, "part_level":0, "part_option":{"part_func_type":0, "part_func_expr":"", "part_num":1, "partition_cnt_within_partition_table":-1, "max_used_part_id":0}, "sub_part_option":{"part_func_type":0, "part_func_expr":"", "part_num":1, "partition_cnt_within_partition_table":-1, "max_used_part_id":-1}, "locality_str":"", "zone_list":[], "primary_zone":"", "part_num":0, "subpart_num":0, "partition_num":1, "subpartition_num":0, "partition_array":[{"BasePartition":{"tenant_id":18446744073709551615, "table_id":18446744073709551615, "part_id":0, "name":"p0", "high_bound_val":, "list_row_values":[], "part_idx":0}, "mapping_pg_part_id":-1}], "subpartition_array":null, "index_status":1, "binding":false, "duplicate_scope":0}, "max_used_column_id":17, "max_used_constraint_id":0, "sess_active_time":0, "rowkey_column_num":1, "index_column_num":0, "rowkey_split_pos":0, "block_size":16384, "is_use_bloomfilter":false, "progressive_merge_num":0, "tablet_size":134217728, "pctfree":10, "load_type":0, "index_using_type":0, "def_type":1, "charset_type":2, "collation_type":45, "create_mem_version":0, "index_status":1, "partition_status":0, "code_version":1, "last_modified_frozen_version":0, "comment":"", "pk_comment":"", "create_host":"", "zone_replica_attr_array":[], "region_replica_num_array":[], "tablegroup_name":"", "compress_func_name":"zstd_1.0", "row_store_type":1, "store_format":3, "expire_info":"", "view_schema":{"view_definition":"", "check_option":"none", "is_updatable":"false", "is_materialized":"false"}, "autoinc_column_id":0, "auto_increment":1, "read_only":false, "primary_zone_array":[], "index_tid_array":[], "mv_tid_array":[], "aux_vp_tid_array":[], "base_table_ids":[], "rowkey_info":{"columns":[{"length":0, "column_id":16, "type":{"type":"INT", "collation":"binary", "coercibility":"NUMERIC"}, "order":0, "fulltext_flag":false}], "capacity":1}, "partition_key_info":{"columns":null, "capacity":0}, "aux_vp_tid_array":[]}, "index_arg_list":[], "constraint_list":[], "db_name":"ambiguous", "last_replay_log_id":0, "foreign_key_arg_list":[], "vertical_partition_arg_list":[]}, "index_arg_list":[]}
 | |
| ***************   Case 8   ***************
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| select c1, sum(c2) from t1 group by 2;
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| ***************   Case 9   ***************
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| select * from t1 join t2 using(c1) join t3 using(c2);
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| ***************   Case 10   ***************
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| select * from t1 join t2 using(c1) join t1 using(c2);
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| ***************   Case 11   ***************
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| select c2 from t1 join t2 using(c1) join t3 using(c1);
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| ***************   Case 12   ***************
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| SELECT * FROM t1 RIGHT JOIN (SELECT * FROM t2) as at2  USING (c1)
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| {
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|   "stmt_type":1,
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|   "table": [
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|      {
 | |
|       "table_id":1099511677877,
 | |
|       "table_name":"t1",
 | |
|       "alias_name":"",
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|       "synonym_name":"",
 | |
|       "table_type":0,
 | |
|       "ref_id":1099511677877,
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|       "database_name":"ambiguous",
 | |
|       "for_update":false,
 | |
|       "wait":-1,
 | |
|       "mock_id":-1,
 | |
|       "view_base_item":-1
 | |
|     },
 | |
|      {
 | |
|       "table_id":-3,
 | |
|       "table_name":"at2",
 | |
|       "alias_name":"at2",
 | |
|       "synonym_name":"",
 | |
|       "table_type":2,
 | |
|       "ref_id":-1,
 | |
|       "database_name":"",
 | |
|       "for_update":false,
 | |
|       "wait":-1,
 | |
|       "mock_id":-1,
 | |
|       "view_base_item":-1
 | |
|     }
 | |
|   ],
 | |
|   "joined_table": [
 | |
|      {
 | |
|       "table_id":-2,
 | |
|       "table_type":3,
 | |
|       "join_type":"RIGHT OUTER JOIN",
 | |
|       "left_table": {
 | |
|         "table_id":1099511677877,
 | |
|         "table_name":"t1",
 | |
|         "alias_name":"",
 | |
|         "synonym_name":"",
 | |
|         "table_type":0,
 | |
|         "ref_id":1099511677877,
 | |
|         "database_name":"ambiguous",
 | |
|         "for_update":false,
 | |
|         "wait":-1,
 | |
|         "mock_id":-1,
 | |
|         "view_base_item":-1
 | |
|       },
 | |
|       "right_table": {
 | |
|         "table_id":-3,
 | |
|         "table_name":"at2",
 | |
|         "alias_name":"at2",
 | |
|         "synonym_name":"",
 | |
|         "table_type":2,
 | |
|         "ref_id":-1,
 | |
|         "database_name":"",
 | |
|         "for_update":false,
 | |
|         "wait":-1,
 | |
|         "mock_id":-1,
 | |
|         "view_base_item":-1
 | |
|       },
 | |
|       "join_condition": [
 | |
|          {
 | |
|           "item_type":"T_OP_EQ",
 | |
|           "result_type": {
 | |
|             "meta": {
 | |
|               "type":"INT",
 | |
|               "collation":"binary",
 | |
|               "coercibility":"NUMERIC"
 | |
|             },
 | |
|             "accuracy": {
 | |
|               "length":-1,
 | |
|               "precision":1,
 | |
|               "scale":0
 | |
|             },
 | |
|             "flag":1,
 | |
|             "calc_type": {
 | |
|               "type":"INT",
 | |
|               "collation":"binary",
 | |
|               "coercibility":"NUMERIC"
 | |
|             }
 | |
|           },
 | |
|           "expr_info": [
 | |
|             "CNT_COLUMN",
 | |
|             "IS_JOIN_COND"
 | |
|           ],
 | |
|           "rel_id": [
 | |
|             1,
 | |
|             2
 | |
|           ],
 | |
|           "expr_levels": [
 | |
|             0
 | |
|           ],
 | |
|           "children": [
 | |
|              {
 | |
|               "item_type":"T_REF_COLUMN",
 | |
|               "result_type": {
 | |
|                 "meta": {
 | |
|                   "type":"INT",
 | |
|                   "collation":"binary",
 | |
|                   "coercibility":"NUMERIC"
 | |
|                 },
 | |
|                 "accuracy": {
 | |
|                   "length":-1,
 | |
|                   "precision":11,
 | |
|                   "scale":0
 | |
|                 },
 | |
|                 "flag":16387,
 | |
|                 "calc_type": {
 | |
|                   "type":"NULL",
 | |
|                   "collation":"invalid_type",
 | |
|                   "coercibility":"INVALID"
 | |
|                 }
 | |
|               },
 | |
|               "expr_info": [
 | |
|                 "IS_COLUMN",
 | |
|                 "CNT_COLUMN"
 | |
|               ],
 | |
|               "rel_id": [
 | |
|                 1
 | |
|               ],
 | |
|               "table_id":1099511677877,
 | |
|               "column_id":16,
 | |
|               "database_name":"ambiguous",
 | |
|               "table_name":"t1",
 | |
|               "synonym_name":"",
 | |
|               "column_name":"c1",
 | |
|               "expr_level":0,
 | |
|               "expr_levels": [
 | |
|                 0
 | |
|               ],
 | |
|               "column_flags":0,
 | |
|               "is_explicited_referece":true,
 | |
|               "explicited_ref_count":2,
 | |
|               "enum_set_values": [
 | |
|               ],
 | |
|               "is_lob_column":false
 | |
|             },
 | |
|              {
 | |
|               "item_type":"T_REF_COLUMN",
 | |
|               "result_type": {
 | |
|                 "meta": {
 | |
|                   "type":"INT",
 | |
|                   "collation":"binary",
 | |
|                   "coercibility":"NUMERIC"
 | |
|                 },
 | |
|                 "accuracy": {
 | |
|                   "length":-1,
 | |
|                   "precision":11,
 | |
|                   "scale":0
 | |
|                 },
 | |
|                 "flag":16387,
 | |
|                 "calc_type": {
 | |
|                   "type":"NULL",
 | |
|                   "collation":"invalid_type",
 | |
|                   "coercibility":"INVALID"
 | |
|                 }
 | |
|               },
 | |
|               "expr_info": [
 | |
|                 "IS_COLUMN",
 | |
|                 "CNT_COLUMN"
 | |
|               ],
 | |
|               "rel_id": [
 | |
|                 2
 | |
|               ],
 | |
|               "table_id":-3,
 | |
|               "column_id":16,
 | |
|               "database_name":"",
 | |
|               "table_name":"at2",
 | |
|               "synonym_name":"",
 | |
|               "column_name":"c1",
 | |
|               "expr_level":0,
 | |
|               "expr_levels": [
 | |
|                 0
 | |
|               ],
 | |
|               "column_flags":0,
 | |
|               "is_explicited_referece":true,
 | |
|               "explicited_ref_count":2,
 | |
|               "enum_set_values": [
 | |
|               ],
 | |
|               "is_lob_column":false
 | |
|             }
 | |
|           ]
 | |
|         }
 | |
|       ]
 | |
|     }
 | |
|   ],
 | |
|   "partition_express": [
 | |
|   ],
 | |
|   "column": [
 | |
|      {
 | |
|       "column_id":16,
 | |
|       "table_id":1099511677877,
 | |
|       "column":"c1",
 | |
|       "auto_filled_timestamp":false,
 | |
|       "default_value": {
 | |
|         "NULL":"NULL"
 | |
|       },
 | |
|       "base_tid":1099511677877,
 | |
|       "base_cid":16,
 | |
|       "expression": {
 | |
|         "item_type":"T_REF_COLUMN",
 | |
|         "result_type": {
 | |
|           "meta": {
 | |
|             "type":"INT",
 | |
|             "collation":"binary",
 | |
|             "coercibility":"NUMERIC"
 | |
|           },
 | |
|           "accuracy": {
 | |
|             "length":-1,
 | |
|             "precision":11,
 | |
|             "scale":0
 | |
|           },
 | |
|           "flag":16387,
 | |
|           "calc_type": {
 | |
|             "type":"NULL",
 | |
|             "collation":"invalid_type",
 | |
|             "coercibility":"INVALID"
 | |
|           }
 | |
|         },
 | |
|         "expr_info": [
 | |
|           "IS_COLUMN",
 | |
|           "CNT_COLUMN"
 | |
|         ],
 | |
|         "rel_id": [
 | |
|           1
 | |
|         ],
 | |
|         "table_id":1099511677877,
 | |
|         "column_id":16,
 | |
|         "database_name":"ambiguous",
 | |
|         "table_name":"t1",
 | |
|         "synonym_name":"",
 | |
|         "column_name":"c1",
 | |
|         "expr_level":0,
 | |
|         "expr_levels": [
 | |
|           0
 | |
|         ],
 | |
|         "column_flags":0,
 | |
|         "is_explicited_referece":true,
 | |
|         "explicited_ref_count":2,
 | |
|         "enum_set_values": [
 | |
|         ],
 | |
|         "is_lob_column":false
 | |
|       }
 | |
|     },
 | |
|      {
 | |
|       "column_id":16,
 | |
|       "table_id":-3,
 | |
|       "column":"c1",
 | |
|       "auto_filled_timestamp":false,
 | |
|       "default_value": {
 | |
|         "NULL":"NULL"
 | |
|       },
 | |
|       "base_tid":1099511677878,
 | |
|       "base_cid":16,
 | |
|       "expression": {
 | |
|         "item_type":"T_REF_COLUMN",
 | |
|         "result_type": {
 | |
|           "meta": {
 | |
|             "type":"INT",
 | |
|             "collation":"binary",
 | |
|             "coercibility":"NUMERIC"
 | |
|           },
 | |
|           "accuracy": {
 | |
|             "length":-1,
 | |
|             "precision":11,
 | |
|             "scale":0
 | |
|           },
 | |
|           "flag":16387,
 | |
|           "calc_type": {
 | |
|             "type":"NULL",
 | |
|             "collation":"invalid_type",
 | |
|             "coercibility":"INVALID"
 | |
|           }
 | |
|         },
 | |
|         "expr_info": [
 | |
|           "IS_COLUMN",
 | |
|           "CNT_COLUMN"
 | |
|         ],
 | |
|         "rel_id": [
 | |
|           2
 | |
|         ],
 | |
|         "table_id":-3,
 | |
|         "column_id":16,
 | |
|         "database_name":"",
 | |
|         "table_name":"at2",
 | |
|         "synonym_name":"",
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|          {
 | |
|           "table_id":1099511677878,
 | |
|           "is_join":false
 | |
|         }
 | |
|       ],
 | |
|       "start_with": [
 | |
|       ],
 | |
|       "connect_by": [
 | |
|       ],
 | |
|       "where": [
 | |
|       ],
 | |
|       "group_by": [
 | |
|       ],
 | |
|       "having": [
 | |
|       ],
 | |
|       "aggr_func": [
 | |
|       ],
 | |
|       "order_by": [
 | |
|       ],
 | |
|       "limit":null,
 | |
|       "offset":null,
 | |
|       "show_stmt_ctx": {
 | |
|         "is_from_show_stmt":false,
 | |
|         "global_scope":false,
 | |
|         "tenant_id":-1,
 | |
|         "show_database_id":-1,
 | |
|         "show_table_id":-1,
 | |
|         "grants_user_id":-1
 | |
|       },
 | |
|       "hint": {
 | |
|         "read_static":false,
 | |
|         "no_rewrite":false,
 | |
|         "frozen_version":-1,
 | |
|         "topk_precision":-1,
 | |
|         "sharding_minimum_row_count":0,
 | |
|         "query_timeout":-1,
 | |
|         "hotspot":false,
 | |
|         "index": [
 | |
|         ],
 | |
|         "read_consistency":-1,
 | |
|         "join_ordered":false,
 | |
|         "join_order": [
 | |
|         ],
 | |
|         "merge_hint_ids": [
 | |
|         ],
 | |
|         "hash_hint_ids": [
 | |
|         ],
 | |
|         "no_hash_hint_ids": [
 | |
|         ],
 | |
|         "nl_hint_ids": [
 | |
|         ],
 | |
|         "part_hints": [
 | |
|         ],
 | |
|         "use_late_materialization":-1,
 | |
|         "log_level":"",
 | |
|         "max_concurrent":-1,
 | |
|         "only_concurrent_hint":false,
 | |
|         "has_hint_exclude_concurrent":false,
 | |
|         "parallel":-1,
 | |
|         "use_px":2,
 | |
|         "use join filter":false,
 | |
|         "org_pq_distributes": [
 | |
|         ],
 | |
|         "pq_distributes": [
 | |
|         ]
 | |
|       },
 | |
|       "query_context": {
 | |
|         "param_num":0,
 | |
|         "fetch_cur_time":true,
 | |
|         "calculable_items": [
 | |
|         ]
 | |
|       },
 | |
|       "extra_output_exprs": [
 | |
|       ],
 | |
|       "current_level":0,
 | |
|       "equal_sets": [
 | |
|       ],
 | |
|       "pseudo_column_exprs": [
 | |
|       ],
 | |
|       "child_stmts": [
 | |
|       ],
 | |
|       "has_transformed_for_hierarchical_query":false,
 | |
|       "is_hierarchical_query":false
 | |
|     }
 | |
|   ],
 | |
|   "has_transformed_for_hierarchical_query":false,
 | |
|   "is_hierarchical_query":false
 | |
| }
 | |
| ***************   Case 13   ***************
 | |
| SELECT 12 AS c1, c1 FROM t1 GROUP BY c1;
 | |
| ***************   Case 14   ***************
 | |
| SELECT COUNT(c1) AS c2 FROM t1 GROUP BY c2 HAVING c2 = 2;
 | |
| {
 | |
|   "stmt_type":1,
 | |
|   "table": [
 | |
|      {
 | |
|       "table_id":1099511677877,
 | |
|       "table_name":"t1",
 | |
|       "alias_name":"",
 | |
|       "synonym_name":"",
 | |
|       "table_type":0,
 | |
|       "ref_id":1099511677877,
 | |
|       "database_name":"ambiguous",
 | |
|       "for_update":false,
 | |
|       "wait":-1,
 | |
|       "mock_id":-1,
 | |
|       "view_base_item":-1
 | |
|     }
 | |
|   ],
 | |
|   "joined_table": [
 | |
|   ],
 | |
|   "partition_express": [
 | |
|   ],
 | |
|   "column": [
 | |
|      {
 | |
|       "column_id":16,
 | |
|       "table_id":1099511677877,
 | |
|       "column":"c1",
 | |
|       "auto_filled_timestamp":false,
 | |
|       "default_value": {
 | |
|         "NULL":"NULL"
 | |
|       },
 | |
|       "base_tid":1099511677877,
 | |
|       "base_cid":16,
 | |
|       "expression": {
 | |
|         "item_type":"T_REF_COLUMN",
 | |
|         "result_type": {
 | |
|           "meta": {
 | |
|             "type":"INT",
 | |
|             "collation":"binary",
 | |
|             "coercibility":"NUMERIC"
 | |
|           },
 | |
|           "accuracy": {
 | |
|             "length":-1,
 | |
|             "precision":11,
 | |
|             "scale":0
 | |
|           },
 | |
|           "flag":16387,
 | |
|           "calc_type": {
 | |
|             "type":"NULL",
 | |
|             "collation":"invalid_type",
 | |
|             "coercibility":"INVALID"
 | |
|           }
 | |
|         },
 | |
|         "expr_info": [
 | |
|           "IS_COLUMN",
 | |
|           "CNT_COLUMN"
 | |
|         ],
 | |
|         "rel_id": [
 | |
|           1
 | |
|         ],
 | |
|         "table_id":1099511677877,
 | |
|         "column_id":16,
 | |
|         "database_name":"ambiguous",
 | |
|         "table_name":"t1",
 | |
|         "synonym_name":"",
 | |
|         "column_name":"c1",
 | |
|         "expr_level":0,
 | |
|         "expr_levels": [
 | |
|           0
 | |
|         ],
 | |
|         "column_flags":0,
 | |
|         "is_explicited_referece":true,
 | |
|         "explicited_ref_count":2,
 | |
|         "enum_set_values": [
 | |
|         ],
 | |
|         "is_lob_column":false
 | |
|       }
 | |
|     },
 | |
|      {
 | |
|       "column_id":17,
 | |
|       "table_id":1099511677877,
 | |
|       "column":"c2",
 | |
|       "auto_filled_timestamp":false,
 | |
|       "default_value": {
 | |
|         "NULL":"NULL"
 | |
|       },
 | |
|       "base_tid":1099511677877,
 | |
|       "base_cid":17,
 | |
|       "expression": {
 | |
|         "item_type":"T_REF_COLUMN",
 | |
|         "result_type": {
 | |
|           "meta": {
 | |
|             "type":"INT",
 | |
|             "collation":"binary",
 | |
|             "coercibility":"NUMERIC"
 | |
|           },
 | |
|           "accuracy": {
 | |
|             "length":-1,
 | |
|             "precision":11,
 | |
|             "scale":0
 | |
|           },
 | |
|           "flag":0,
 | |
|           "calc_type": {
 | |
|             "type":"NULL",
 | |
|             "collation":"invalid_type",
 | |
|             "coercibility":"INVALID"
 | |
|           }
 | |
|         },
 | |
|         "expr_info": [
 | |
|           "IS_COLUMN",
 | |
|           "CNT_COLUMN"
 | |
|         ],
 | |
|         "rel_id": [
 | |
|           1
 | |
|         ],
 | |
|         "table_id":1099511677877,
 | |
|         "column_id":17,
 | |
|         "database_name":"ambiguous",
 | |
|         "table_name":"t1",
 | |
|         "synonym_name":"",
 | |
|         "column_name":"c2",
 | |
|         "expr_level":0,
 | |
|         "expr_levels": [
 | |
|           0
 | |
|         ],
 | |
|         "column_flags":0,
 | |
|         "is_explicited_referece":true,
 | |
|         "explicited_ref_count":1,
 | |
|         "enum_set_values": [
 | |
|         ],
 | |
|         "is_lob_column":false
 | |
|       }
 | |
|     }
 | |
|   ],
 | |
|   "select": [
 | |
|      {
 | |
|       "expression": {
 | |
|         "item_type":"T_FUN_COUNT",
 | |
|         "result_type": {
 | |
|           "meta": {
 | |
|             "type":"BIGINT",
 | |
|             "collation":"binary",
 | |
|             "coercibility":"NUMERIC"
 | |
|           },
 | |
|           "accuracy": {
 | |
|             "length":-1,
 | |
|             "precision":20,
 | |
|             "scale":0
 | |
|           },
 | |
|           "flag":0,
 | |
|           "calc_type": {
 | |
|             "type":"NULL",
 | |
|             "collation":"invalid_type",
 | |
|             "coercibility":"INVALID"
 | |
|           }
 | |
|         },
 | |
|         "expr_info": [
 | |
|           "IS_AGG",
 | |
|           "CNT_COLUMN",
 | |
|           "CNT_AGG"
 | |
|         ],
 | |
|         "rel_id": [
 | |
|           1
 | |
|         ],
 | |
|         "expr_level":0,
 | |
|         "expr_levels": [
 | |
|           0
 | |
|         ],
 | |
|         "children": [
 | |
|            {
 | |
|             "item_type":"T_REF_COLUMN",
 | |
|             "result_type": {
 | |
|               "meta": {
 | |
|                 "type":"INT",
 | |
|                 "collation":"binary",
 | |
|                 "coercibility":"NUMERIC"
 | |
|               },
 | |
|               "accuracy": {
 | |
|                 "length":-1,
 | |
|                 "precision":11,
 | |
|                 "scale":0
 | |
|               },
 | |
|               "flag":16387,
 | |
|               "calc_type": {
 | |
|                 "type":"NULL",
 | |
|                 "collation":"invalid_type",
 | |
|                 "coercibility":"INVALID"
 | |
|               }
 | |
|             },
 | |
|             "expr_info": [
 | |
|               "IS_COLUMN",
 | |
|               "CNT_COLUMN"
 | |
|             ],
 | |
|             "rel_id": [
 | |
|               1
 | |
|             ],
 | |
|             "table_id":1099511677877,
 | |
|             "column_id":16,
 | |
|             "database_name":"ambiguous",
 | |
|             "table_name":"t1",
 | |
|             "synonym_name":"",
 | |
|             "column_name":"c1",
 | |
|             "expr_level":0,
 | |
|             "expr_levels": [
 | |
|               0
 | |
|             ],
 | |
|             "column_flags":0,
 | |
|             "is_explicited_referece":true,
 | |
|             "explicited_ref_count":2,
 | |
|             "enum_set_values": [
 | |
|             ],
 | |
|             "is_lob_column":false
 | |
|           }
 | |
|         ],
 | |
|         "distinct":false,
 | |
|         "order_by": [
 | |
|         ],
 | |
|         "separator_param_expr":null,
 | |
|         "udf_meta": {
 | |
|           "tenant_id":-1,
 | |
|           "name":"",
 | |
|           "ret":0,
 | |
|           "dl":"",
 | |
|           "type":0
 | |
|         }
 | |
|       },
 | |
|       "is_alias":true,
 | |
|       "alias_name":"c2",
 | |
|       "expr_name":"COUNT(c1)",
 | |
|       "default": {
 | |
|         "NULL":"NULL"
 | |
|       }
 | |
|     }
 | |
|   ],
 | |
|   "distinct":false,
 | |
|   "rollup":false,
 | |
|   "nocycle":false,
 | |
|   "from": [
 | |
|      {
 | |
|       "table_id":1099511677877,
 | |
|       "is_join":false
 | |
|     }
 | |
|   ],
 | |
|   "start_with": [
 | |
|   ],
 | |
|   "connect_by": [
 | |
|   ],
 | |
|   "where": [
 | |
|   ],
 | |
|   "group_by": [
 | |
|      {
 | |
|       "item_type":"T_REF_COLUMN",
 | |
|       "result_type": {
 | |
|         "meta": {
 | |
|           "type":"INT",
 | |
|           "collation":"binary",
 | |
|           "coercibility":"NUMERIC"
 | |
|         },
 | |
|         "accuracy": {
 | |
|           "length":-1,
 | |
|           "precision":11,
 | |
|           "scale":0
 | |
|         },
 | |
|         "flag":0,
 | |
|         "calc_type": {
 | |
|           "type":"NULL",
 | |
|           "collation":"invalid_type",
 | |
|           "coercibility":"INVALID"
 | |
|         }
 | |
|       },
 | |
|       "expr_info": [
 | |
|         "IS_COLUMN",
 | |
|         "CNT_COLUMN"
 | |
|       ],
 | |
|       "rel_id": [
 | |
|         1
 | |
|       ],
 | |
|       "table_id":1099511677877,
 | |
|       "column_id":17,
 | |
|       "database_name":"ambiguous",
 | |
|       "table_name":"t1",
 | |
|       "synonym_name":"",
 | |
|       "column_name":"c2",
 | |
|       "expr_level":0,
 | |
|       "expr_levels": [
 | |
|         0
 | |
|       ],
 | |
|       "column_flags":0,
 | |
|       "is_explicited_referece":true,
 | |
|       "explicited_ref_count":1,
 | |
|       "enum_set_values": [
 | |
|       ],
 | |
|       "is_lob_column":false
 | |
|     }
 | |
|   ],
 | |
|   "having": [
 | |
|      {
 | |
|       "item_type":"T_OP_EQ",
 | |
|       "result_type": {
 | |
|         "meta": {
 | |
|           "type":"INT",
 | |
|           "collation":"binary",
 | |
|           "coercibility":"NUMERIC"
 | |
|         },
 | |
|         "accuracy": {
 | |
|           "length":-1,
 | |
|           "precision":1,
 | |
|           "scale":0
 | |
|         },
 | |
|         "flag":0,
 | |
|         "calc_type": {
 | |
|           "type":"DECIMAL",
 | |
|           "collation":"binary",
 | |
|           "coercibility":"NUMERIC"
 | |
|         }
 | |
|       },
 | |
|       "expr_info": [
 | |
|         "CNT_CONST",
 | |
|         "CNT_COLUMN",
 | |
|         "CNT_STATIC_PARAM",
 | |
|         "IS_SIMPLE_COND"
 | |
|       ],
 | |
|       "rel_id": [
 | |
|         1
 | |
|       ],
 | |
|       "expr_levels": [
 | |
|         0
 | |
|       ],
 | |
|       "children": [
 | |
|          {
 | |
|           "item_type":"T_REF_COLUMN",
 | |
|           "result_type": {
 | |
|             "meta": {
 | |
|               "type":"INT",
 | |
|               "collation":"binary",
 | |
|               "coercibility":"NUMERIC"
 | |
|             },
 | |
|             "accuracy": {
 | |
|               "length":-1,
 | |
|               "precision":11,
 | |
|               "scale":0
 | |
|             },
 | |
|             "flag":0,
 | |
|             "calc_type": {
 | |
|               "type":"NULL",
 | |
|               "collation":"invalid_type",
 | |
|               "coercibility":"INVALID"
 | |
|             }
 | |
|           },
 | |
|           "expr_info": [
 | |
|             "IS_COLUMN",
 | |
|             "CNT_COLUMN"
 | |
|           ],
 | |
|           "rel_id": [
 | |
|             1
 | |
|           ],
 | |
|           "table_id":1099511677877,
 | |
|           "column_id":17,
 | |
|           "database_name":"ambiguous",
 | |
|           "table_name":"t1",
 | |
|           "synonym_name":"",
 | |
|           "column_name":"c2",
 | |
|           "expr_level":0,
 | |
|           "expr_levels": [
 | |
|             0
 | |
|           ],
 | |
|           "column_flags":0,
 | |
|           "is_explicited_referece":true,
 | |
|           "explicited_ref_count":1,
 | |
|           "enum_set_values": [
 | |
|           ],
 | |
|           "is_lob_column":false
 | |
|         },
 | |
|          {
 | |
|           "item_type":"T_QUESTIONMARK",
 | |
|           "result_type": {
 | |
|             "meta": {
 | |
|               "type":"BIGINT",
 | |
|               "collation":"binary",
 | |
|               "coercibility":"NUMERIC"
 | |
|             },
 | |
|             "accuracy": {
 | |
|               "length":1,
 | |
|               "precision":1,
 | |
|               "scale":0
 | |
|             },
 | |
|             "flag":1,
 | |
|             "calc_type": {
 | |
|               "type":"NULL",
 | |
|               "collation":"invalid_type",
 | |
|               "coercibility":"INVALID"
 | |
|             }
 | |
|           },
 | |
|           "expr_info": [
 | |
|             "IS_CONST",
 | |
|             "IS_STATIC_PARAM",
 | |
|             "CNT_CONST",
 | |
|             "CNT_STATIC_PARAM"
 | |
|           ],
 | |
|           "rel_id": [
 | |
|           ],
 | |
|           "value": {
 | |
|             "UNKNOWN":0
 | |
|           }
 | |
|         }
 | |
|       ]
 | |
|     }
 | |
|   ],
 | |
|   "aggr_func": [
 | |
|      {
 | |
|       "item_type":"T_FUN_COUNT",
 | |
|       "result_type": {
 | |
|         "meta": {
 | |
|           "type":"BIGINT",
 | |
|           "collation":"binary",
 | |
|           "coercibility":"NUMERIC"
 | |
|         },
 | |
|         "accuracy": {
 | |
|           "length":-1,
 | |
|           "precision":20,
 | |
|           "scale":0
 | |
|         },
 | |
|         "flag":0,
 | |
|         "calc_type": {
 | |
|           "type":"NULL",
 | |
|           "collation":"invalid_type",
 | |
|           "coercibility":"INVALID"
 | |
|         }
 | |
|       },
 | |
|       "expr_info": [
 | |
|         "IS_AGG",
 | |
|         "CNT_COLUMN",
 | |
|         "CNT_AGG"
 | |
|       ],
 | |
|       "rel_id": [
 | |
|         1
 | |
|       ],
 | |
|       "expr_level":0,
 | |
|       "expr_levels": [
 | |
|         0
 | |
|       ],
 | |
|       "children": [
 | |
|          {
 | |
|           "item_type":"T_REF_COLUMN",
 | |
|           "result_type": {
 | |
|             "meta": {
 | |
|               "type":"INT",
 | |
|               "collation":"binary",
 | |
|               "coercibility":"NUMERIC"
 | |
|             },
 | |
|             "accuracy": {
 | |
|               "length":-1,
 | |
|               "precision":11,
 | |
|               "scale":0
 | |
|             },
 | |
|             "flag":16387,
 | |
|             "calc_type": {
 | |
|               "type":"NULL",
 | |
|               "collation":"invalid_type",
 | |
|               "coercibility":"INVALID"
 | |
|             }
 | |
|           },
 | |
|           "expr_info": [
 | |
|             "IS_COLUMN",
 | |
|             "CNT_COLUMN"
 | |
|           ],
 | |
|           "rel_id": [
 | |
|             1
 | |
|           ],
 | |
|           "table_id":1099511677877,
 | |
|           "column_id":16,
 | |
|           "database_name":"ambiguous",
 | |
|           "table_name":"t1",
 | |
|           "synonym_name":"",
 | |
|           "column_name":"c1",
 | |
|           "expr_level":0,
 | |
|           "expr_levels": [
 | |
|             0
 | |
|           ],
 | |
|           "column_flags":0,
 | |
|           "is_explicited_referece":true,
 | |
|           "explicited_ref_count":2,
 | |
|           "enum_set_values": [
 | |
|           ],
 | |
|           "is_lob_column":false
 | |
|         }
 | |
|       ],
 | |
|       "distinct":false,
 | |
|       "order_by": [
 | |
|       ],
 | |
|       "separator_param_expr":null,
 | |
|       "udf_meta": {
 | |
|         "tenant_id":-1,
 | |
|         "name":"",
 | |
|         "ret":0,
 | |
|         "dl":"",
 | |
|         "type":0
 | |
|       }
 | |
|     }
 | |
|   ],
 | |
|   "order_by": [
 | |
|   ],
 | |
|   "limit":null,
 | |
|   "offset":null,
 | |
|   "show_stmt_ctx": {
 | |
|     "is_from_show_stmt":false,
 | |
|     "global_scope":false,
 | |
|     "tenant_id":-1,
 | |
|     "show_database_id":-1,
 | |
|     "show_table_id":-1,
 | |
|     "grants_user_id":-1
 | |
|   },
 | |
|   "hint": {
 | |
|     "read_static":false,
 | |
|     "no_rewrite":false,
 | |
|     "frozen_version":-1,
 | |
|     "topk_precision":-1,
 | |
|     "sharding_minimum_row_count":0,
 | |
|     "query_timeout":-1,
 | |
|     "hotspot":false,
 | |
|     "index": [
 | |
|     ],
 | |
|     "read_consistency":-1,
 | |
|     "join_ordered":false,
 | |
|     "join_order": [
 | |
|     ],
 | |
|     "merge_hint_ids": [
 | |
|     ],
 | |
|     "hash_hint_ids": [
 | |
|     ],
 | |
|     "no_hash_hint_ids": [
 | |
|     ],
 | |
|     "nl_hint_ids": [
 | |
|     ],
 | |
|     "part_hints": [
 | |
|     ],
 | |
|     "use_late_materialization":-1,
 | |
|     "log_level":"",
 | |
|     "max_concurrent":-1,
 | |
|     "only_concurrent_hint":false,
 | |
|     "has_hint_exclude_concurrent":false,
 | |
|     "parallel":-1,
 | |
|     "use_px":2,
 | |
|     "use join filter":false,
 | |
|     "org_pq_distributes": [
 | |
|     ],
 | |
|     "pq_distributes": [
 | |
|     ]
 | |
|   },
 | |
|   "query_context": {
 | |
|     "param_num":1,
 | |
|     "fetch_cur_time":true,
 | |
|     "calculable_items": [
 | |
|     ]
 | |
|   },
 | |
|   "extra_output_exprs": [
 | |
|   ],
 | |
|   "current_level":0,
 | |
|   "equal_sets": [
 | |
|   ],
 | |
|   "pseudo_column_exprs": [
 | |
|   ],
 | |
|   "child_stmts": [
 | |
|   ],
 | |
|   "has_transformed_for_hierarchical_query":false,
 | |
|   "is_hierarchical_query":false
 | |
| }
 | |
| ***************   Case 15   ***************
 | |
| select X.c1 from t1 AS X group by X.c2 having (X.c2 = 1);
 | |
| {
 | |
|   "stmt_type":1,
 | |
|   "table": [
 | |
|      {
 | |
|       "table_id":-2,
 | |
|       "table_name":"t1",
 | |
|       "alias_name":"X",
 | |
|       "synonym_name":"",
 | |
|       "table_type":1,
 | |
|       "ref_id":1099511677877,
 | |
|       "database_name":"ambiguous",
 | |
|       "for_update":false,
 | |
|       "wait":-1,
 | |
|       "mock_id":-1,
 | |
|       "view_base_item":-1
 | |
|     }
 | |
|   ],
 | |
|   "joined_table": [
 | |
|   ],
 | |
|   "partition_express": [
 | |
|   ],
 | |
|   "column": [
 | |
|      {
 | |
|       "column_id":16,
 | |
|       "table_id":-2,
 | |
|       "column":"c1",
 | |
|       "auto_filled_timestamp":false,
 | |
|       "default_value": {
 | |
|         "NULL":"NULL"
 | |
|       },
 | |
|       "base_tid":1099511677877,
 | |
|       "base_cid":16,
 | |
|       "expression": {
 | |
|         "item_type":"T_REF_COLUMN",
 | |
|         "result_type": {
 | |
|           "meta": {
 | |
|             "type":"INT",
 | |
|             "collation":"binary",
 | |
|             "coercibility":"NUMERIC"
 | |
|           },
 | |
|           "accuracy": {
 | |
|             "length":-1,
 | |
|             "precision":11,
 | |
|             "scale":0
 | |
|           },
 | |
|           "flag":16387,
 | |
|           "calc_type": {
 | |
|             "type":"NULL",
 | |
|             "collation":"invalid_type",
 | |
|             "coercibility":"INVALID"
 | |
|           }
 | |
|         },
 | |
|         "expr_info": [
 | |
|           "IS_COLUMN",
 | |
|           "CNT_COLUMN"
 | |
|         ],
 | |
|         "rel_id": [
 | |
|           1
 | |
|         ],
 | |
|         "table_id":-2,
 | |
|         "column_id":16,
 | |
|         "database_name":"ambiguous",
 | |
|         "table_name":"X",
 | |
|         "synonym_name":"",
 | |
|         "column_name":"c1",
 | |
|         "expr_level":0,
 | |
|         "expr_levels": [
 | |
|           0
 | |
|         ],
 | |
|         "column_flags":0,
 | |
|         "is_explicited_referece":true,
 | |
|         "explicited_ref_count":1,
 | |
|         "enum_set_values": [
 | |
|         ],
 | |
|         "is_lob_column":false
 | |
|       }
 | |
|     },
 | |
|      {
 | |
|       "column_id":17,
 | |
|       "table_id":-2,
 | |
|       "column":"c2",
 | |
|       "auto_filled_timestamp":false,
 | |
|       "default_value": {
 | |
|         "NULL":"NULL"
 | |
|       },
 | |
|       "base_tid":1099511677877,
 | |
|       "base_cid":17,
 | |
|       "expression": {
 | |
|         "item_type":"T_REF_COLUMN",
 | |
|         "result_type": {
 | |
|           "meta": {
 | |
|             "type":"INT",
 | |
|             "collation":"binary",
 | |
|             "coercibility":"NUMERIC"
 | |
|           },
 | |
|           "accuracy": {
 | |
|             "length":-1,
 | |
|             "precision":11,
 | |
|             "scale":0
 | |
|           },
 | |
|           "flag":0,
 | |
|           "calc_type": {
 | |
|             "type":"NULL",
 | |
|             "collation":"invalid_type",
 | |
|             "coercibility":"INVALID"
 | |
|           }
 | |
|         },
 | |
|         "expr_info": [
 | |
|           "IS_COLUMN",
 | |
|           "CNT_COLUMN"
 | |
|         ],
 | |
|         "rel_id": [
 | |
|           1
 | |
|         ],
 | |
|         "table_id":-2,
 | |
|         "column_id":17,
 | |
|         "database_name":"ambiguous",
 | |
|         "table_name":"X",
 | |
|         "synonym_name":"",
 | |
|         "column_name":"c2",
 | |
|         "expr_level":0,
 | |
|         "expr_levels": [
 | |
|           0
 | |
|         ],
 | |
|         "column_flags":0,
 | |
|         "is_explicited_referece":true,
 | |
|         "explicited_ref_count":1,
 | |
|         "enum_set_values": [
 | |
|         ],
 | |
|         "is_lob_column":false
 | |
|       }
 | |
|     }
 | |
|   ],
 | |
|   "select": [
 | |
|      {
 | |
|       "expression": {
 | |
|         "item_type":"T_REF_COLUMN",
 | |
|         "result_type": {
 | |
|           "meta": {
 | |
|             "type":"INT",
 | |
|             "collation":"binary",
 | |
|             "coercibility":"NUMERIC"
 | |
|           },
 | |
|           "accuracy": {
 | |
|             "length":-1,
 | |
|             "precision":11,
 | |
|             "scale":0
 | |
|           },
 | |
|           "flag":16387,
 | |
|           "calc_type": {
 | |
|             "type":"NULL",
 | |
|             "collation":"invalid_type",
 | |
|             "coercibility":"INVALID"
 | |
|           }
 | |
|         },
 | |
|         "expr_info": [
 | |
|           "IS_COLUMN",
 | |
|           "CNT_COLUMN"
 | |
|         ],
 | |
|         "rel_id": [
 | |
|           1
 | |
|         ],
 | |
|         "table_id":-2,
 | |
|         "column_id":16,
 | |
|         "database_name":"ambiguous",
 | |
|         "table_name":"X",
 | |
|         "synonym_name":"",
 | |
|         "column_name":"c1",
 | |
|         "expr_level":0,
 | |
|         "expr_levels": [
 | |
|           0
 | |
|         ],
 | |
|         "column_flags":0,
 | |
|         "is_explicited_referece":true,
 | |
|         "explicited_ref_count":1,
 | |
|         "enum_set_values": [
 | |
|         ],
 | |
|         "is_lob_column":false
 | |
|       },
 | |
|       "is_alias":false,
 | |
|       "alias_name":"c1",
 | |
|       "expr_name":"X.c1",
 | |
|       "default": {
 | |
|         "NULL":"NULL"
 | |
|       }
 | |
|     }
 | |
|   ],
 | |
|   "distinct":false,
 | |
|   "rollup":false,
 | |
|   "nocycle":false,
 | |
|   "from": [
 | |
|      {
 | |
|       "table_id":-2,
 | |
|       "is_join":false
 | |
|     }
 | |
|   ],
 | |
|   "start_with": [
 | |
|   ],
 | |
|   "connect_by": [
 | |
|   ],
 | |
|   "where": [
 | |
|   ],
 | |
|   "group_by": [
 | |
|      {
 | |
|       "item_type":"T_REF_COLUMN",
 | |
|       "result_type": {
 | |
|         "meta": {
 | |
|           "type":"INT",
 | |
|           "collation":"binary",
 | |
|           "coercibility":"NUMERIC"
 | |
|         },
 | |
|         "accuracy": {
 | |
|           "length":-1,
 | |
|           "precision":11,
 | |
|           "scale":0
 | |
|         },
 | |
|         "flag":0,
 | |
|         "calc_type": {
 | |
|           "type":"NULL",
 | |
|           "collation":"invalid_type",
 | |
|           "coercibility":"INVALID"
 | |
|         }
 | |
|       },
 | |
|       "expr_info": [
 | |
|         "IS_COLUMN",
 | |
|         "CNT_COLUMN"
 | |
|       ],
 | |
|       "rel_id": [
 | |
|         1
 | |
|       ],
 | |
|       "table_id":-2,
 | |
|       "column_id":17,
 | |
|       "database_name":"ambiguous",
 | |
|       "table_name":"X",
 | |
|       "synonym_name":"",
 | |
|       "column_name":"c2",
 | |
|       "expr_level":0,
 | |
|       "expr_levels": [
 | |
|         0
 | |
|       ],
 | |
|       "column_flags":0,
 | |
|       "is_explicited_referece":true,
 | |
|       "explicited_ref_count":1,
 | |
|       "enum_set_values": [
 | |
|       ],
 | |
|       "is_lob_column":false
 | |
|     }
 | |
|   ],
 | |
|   "having": [
 | |
|      {
 | |
|       "item_type":"T_OP_EQ",
 | |
|       "result_type": {
 | |
|         "meta": {
 | |
|           "type":"INT",
 | |
|           "collation":"binary",
 | |
|           "coercibility":"NUMERIC"
 | |
|         },
 | |
|         "accuracy": {
 | |
|           "length":-1,
 | |
|           "precision":1,
 | |
|           "scale":0
 | |
|         },
 | |
|         "flag":0,
 | |
|         "calc_type": {
 | |
|           "type":"DECIMAL",
 | |
|           "collation":"binary",
 | |
|           "coercibility":"NUMERIC"
 | |
|         }
 | |
|       },
 | |
|       "expr_info": [
 | |
|         "CNT_CONST",
 | |
|         "CNT_COLUMN",
 | |
|         "CNT_STATIC_PARAM",
 | |
|         "IS_SIMPLE_COND"
 | |
|       ],
 | |
|       "rel_id": [
 | |
|         1
 | |
|       ],
 | |
|       "expr_levels": [
 | |
|         0
 | |
|       ],
 | |
|       "children": [
 | |
|          {
 | |
|           "item_type":"T_REF_COLUMN",
 | |
|           "result_type": {
 | |
|             "meta": {
 | |
|               "type":"INT",
 | |
|               "collation":"binary",
 | |
|               "coercibility":"NUMERIC"
 | |
|             },
 | |
|             "accuracy": {
 | |
|               "length":-1,
 | |
|               "precision":11,
 | |
|               "scale":0
 | |
|             },
 | |
|             "flag":0,
 | |
|             "calc_type": {
 | |
|               "type":"NULL",
 | |
|               "collation":"invalid_type",
 | |
|               "coercibility":"INVALID"
 | |
|             }
 | |
|           },
 | |
|           "expr_info": [
 | |
|             "IS_COLUMN",
 | |
|             "CNT_COLUMN"
 | |
|           ],
 | |
|           "rel_id": [
 | |
|             1
 | |
|           ],
 | |
|           "table_id":-2,
 | |
|           "column_id":17,
 | |
|           "database_name":"ambiguous",
 | |
|           "table_name":"X",
 | |
|           "synonym_name":"",
 | |
|           "column_name":"c2",
 | |
|           "expr_level":0,
 | |
|           "expr_levels": [
 | |
|             0
 | |
|           ],
 | |
|           "column_flags":0,
 | |
|           "is_explicited_referece":true,
 | |
|           "explicited_ref_count":1,
 | |
|           "enum_set_values": [
 | |
|           ],
 | |
|           "is_lob_column":false
 | |
|         },
 | |
|          {
 | |
|           "item_type":"T_QUESTIONMARK",
 | |
|           "result_type": {
 | |
|             "meta": {
 | |
|               "type":"BIGINT",
 | |
|               "collation":"binary",
 | |
|               "coercibility":"NUMERIC"
 | |
|             },
 | |
|             "accuracy": {
 | |
|               "length":1,
 | |
|               "precision":1,
 | |
|               "scale":0
 | |
|             },
 | |
|             "flag":1,
 | |
|             "calc_type": {
 | |
|               "type":"NULL",
 | |
|               "collation":"invalid_type",
 | |
|               "coercibility":"INVALID"
 | |
|             }
 | |
|           },
 | |
|           "expr_info": [
 | |
|             "IS_CONST",
 | |
|             "IS_STATIC_PARAM",
 | |
|             "CNT_CONST",
 | |
|             "CNT_STATIC_PARAM"
 | |
|           ],
 | |
|           "rel_id": [
 | |
|           ],
 | |
|           "value": {
 | |
|             "UNKNOWN":0
 | |
|           }
 | |
|         }
 | |
|       ]
 | |
|     }
 | |
|   ],
 | |
|   "aggr_func": [
 | |
|   ],
 | |
|   "order_by": [
 | |
|   ],
 | |
|   "limit":null,
 | |
|   "offset":null,
 | |
|   "show_stmt_ctx": {
 | |
|     "is_from_show_stmt":false,
 | |
|     "global_scope":false,
 | |
|     "tenant_id":-1,
 | |
|     "show_database_id":-1,
 | |
|     "show_table_id":-1,
 | |
|     "grants_user_id":-1
 | |
|   },
 | |
|   "hint": {
 | |
|     "read_static":false,
 | |
|     "no_rewrite":false,
 | |
|     "frozen_version":-1,
 | |
|     "topk_precision":-1,
 | |
|     "sharding_minimum_row_count":0,
 | |
|     "query_timeout":-1,
 | |
|     "hotspot":false,
 | |
|     "index": [
 | |
|     ],
 | |
|     "read_consistency":-1,
 | |
|     "join_ordered":false,
 | |
|     "join_order": [
 | |
|     ],
 | |
|     "merge_hint_ids": [
 | |
|     ],
 | |
|     "hash_hint_ids": [
 | |
|     ],
 | |
|     "no_hash_hint_ids": [
 | |
|     ],
 | |
|     "nl_hint_ids": [
 | |
|     ],
 | |
|     "part_hints": [
 | |
|     ],
 | |
|     "use_late_materialization":-1,
 | |
|     "log_level":"",
 | |
|     "max_concurrent":-1,
 | |
|     "only_concurrent_hint":false,
 | |
|     "has_hint_exclude_concurrent":false,
 | |
|     "parallel":-1,
 | |
|     "use_px":2,
 | |
|     "use join filter":false,
 | |
|     "org_pq_distributes": [
 | |
|     ],
 | |
|     "pq_distributes": [
 | |
|     ]
 | |
|   },
 | |
|   "query_context": {
 | |
|     "param_num":1,
 | |
|     "fetch_cur_time":true,
 | |
|     "calculable_items": [
 | |
|     ]
 | |
|   },
 | |
|   "extra_output_exprs": [
 | |
|   ],
 | |
|   "current_level":0,
 | |
|   "equal_sets": [
 | |
|   ],
 | |
|   "pseudo_column_exprs": [
 | |
|   ],
 | |
|   "child_stmts": [
 | |
|   ],
 | |
|   "has_transformed_for_hierarchical_query":false,
 | |
|   "is_hierarchical_query":false
 | |
| }
 | |
| ***************   Case 16   ***************
 | |
| select * from (select * from t1) t join t2 using(c1)
 | |
| {
 | |
|   "stmt_type":1,
 | |
|   "table": [
 | |
|      {
 | |
|       "table_id":-3,
 | |
|       "table_name":"t",
 | |
|       "alias_name":"t",
 | |
|       "synonym_name":"",
 | |
|       "table_type":2,
 | |
|       "ref_id":-1,
 | |
|       "database_name":"",
 | |
|       "for_update":false,
 | |
|       "wait":-1,
 | |
|       "mock_id":-1,
 | |
|       "view_base_item":-1
 | |
|     },
 | |
|      {
 | |
|       "table_id":1099511677878,
 | |
|       "table_name":"t2",
 | |
|       "alias_name":"",
 | |
|       "synonym_name":"",
 | |
|       "table_type":0,
 | |
|       "ref_id":1099511677878,
 | |
|       "database_name":"ambiguous",
 | |
|       "for_update":false,
 | |
|       "wait":-1,
 | |
|       "mock_id":-1,
 | |
|       "view_base_item":-1
 | |
|     }
 | |
|   ],
 | |
|   "joined_table": [
 | |
|      {
 | |
|       "table_id":-2,
 | |
|       "table_type":3,
 | |
|       "join_type":"JOIN",
 | |
|       "left_table": {
 | |
|         "table_id":-3,
 | |
|         "table_name":"t",
 | |
|         "alias_name":"t",
 | |
|         "synonym_name":"",
 | |
|         "table_type":2,
 | |
|         "ref_id":-1,
 | |
|         "database_name":"",
 | |
|         "for_update":false,
 | |
|         "wait":-1,
 | |
|         "mock_id":-1,
 | |
|         "view_base_item":-1
 | |
|       },
 | |
|       "right_table": {
 | |
|         "table_id":1099511677878,
 | |
|         "table_name":"t2",
 | |
|         "alias_name":"",
 | |
|         "synonym_name":"",
 | |
|         "table_type":0,
 | |
|         "ref_id":1099511677878,
 | |
|         "database_name":"ambiguous",
 | |
|         "for_update":false,
 | |
|         "wait":-1,
 | |
|         "mock_id":-1,
 | |
|         "view_base_item":-1
 | |
|       },
 | |
|       "join_condition": [
 | |
|          {
 | |
|           "item_type":"T_OP_EQ",
 | |
|           "result_type": {
 | |
|             "meta": {
 | |
|               "type":"INT",
 | |
|               "collation":"binary",
 | |
|               "coercibility":"NUMERIC"
 | |
|             },
 | |
|             "accuracy": {
 | |
|               "length":-1,
 | |
|               "precision":1,
 | |
|               "scale":0
 | |
|             },
 | |
|             "flag":1,
 | |
|             "calc_type": {
 | |
|               "type":"INT",
 | |
|               "collation":"binary",
 | |
|               "coercibility":"NUMERIC"
 | |
|             }
 | |
|           },
 | |
|           "expr_info": [
 | |
|             "CNT_COLUMN",
 | |
|             "IS_JOIN_COND"
 | |
|           ],
 | |
|           "rel_id": [
 | |
|             1,
 | |
|             2
 | |
|           ],
 | |
|           "expr_levels": [
 | |
|             0
 | |
|           ],
 | |
|           "children": [
 | |
|              {
 | |
|               "item_type":"T_REF_COLUMN",
 | |
|               "result_type": {
 | |
|                 "meta": {
 | |
|                   "type":"INT",
 | |
|                   "collation":"binary",
 | |
|                   "coercibility":"NUMERIC"
 | |
|                 },
 | |
|                 "accuracy": {
 | |
|                   "length":-1,
 | |
|                   "precision":11,
 | |
|                   "scale":0
 | |
|                 },
 | |
|                 "flag":16387,
 | |
|                 "calc_type": {
 | |
|                   "type":"NULL",
 | |
|                   "collation":"invalid_type",
 | |
|                   "coercibility":"INVALID"
 | |
|                 }
 | |
|               },
 | |
|               "expr_info": [
 | |
|                 "IS_COLUMN",
 | |
|                 "CNT_COLUMN"
 | |
|               ],
 | |
|               "rel_id": [
 | |
|                 1
 | |
|               ],
 | |
|               "table_id":-3,
 | |
|               "column_id":16,
 | |
|               "database_name":"",
 | |
|               "table_name":"t",
 | |
|               "synonym_name":"",
 | |
|               "column_name":"c1",
 | |
|               "expr_level":0,
 | |
|               "expr_levels": [
 | |
|                 0
 | |
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|           "base_tid":1099511677877,
 | |
|           "base_cid":17,
 | |
|           "expression": {
 | |
|             "item_type":"T_REF_COLUMN",
 | |
|             "result_type": {
 | |
|               "meta": {
 | |
|                 "type":"INT",
 | |
|                 "collation":"binary",
 | |
|                 "coercibility":"NUMERIC"
 | |
|               },
 | |
|               "accuracy": {
 | |
|                 "length":-1,
 | |
|                 "precision":11,
 | |
|                 "scale":0
 | |
|               },
 | |
|               "flag":0,
 | |
|               "calc_type": {
 | |
|                 "type":"NULL",
 | |
|                 "collation":"invalid_type",
 | |
|                 "coercibility":"INVALID"
 | |
|               }
 | |
|             },
 | |
|             "expr_info": [
 | |
|               "IS_COLUMN",
 | |
|               "CNT_COLUMN"
 | |
|             ],
 | |
|             "rel_id": [
 | |
|               1
 | |
|             ],
 | |
|             "table_id":1099511677877,
 | |
|             "column_id":17,
 | |
|             "database_name":"ambiguous",
 | |
|             "table_name":"t1",
 | |
|             "synonym_name":"",
 | |
|             "column_name":"c2",
 | |
|             "expr_level":0,
 | |
|             "expr_levels": [
 | |
|               0
 | |
|             ],
 | |
|             "column_flags":0,
 | |
|             "is_explicited_referece":true,
 | |
|             "explicited_ref_count":1,
 | |
|             "enum_set_values": [
 | |
|             ],
 | |
|             "is_lob_column":false
 | |
|           }
 | |
|         }
 | |
|       ],
 | |
|       "select": [
 | |
|          {
 | |
|           "expression": {
 | |
|             "item_type":"T_REF_COLUMN",
 | |
|             "result_type": {
 | |
|               "meta": {
 | |
|                 "type":"INT",
 | |
|                 "collation":"binary",
 | |
|                 "coercibility":"NUMERIC"
 | |
|               },
 | |
|               "accuracy": {
 | |
|                 "length":-1,
 | |
|                 "precision":11,
 | |
|                 "scale":0
 | |
|               },
 | |
|               "flag":16387,
 | |
|               "calc_type": {
 | |
|                 "type":"NULL",
 | |
|                 "collation":"invalid_type",
 | |
|                 "coercibility":"INVALID"
 | |
|               }
 | |
|             },
 | |
|             "expr_info": [
 | |
|               "IS_COLUMN",
 | |
|               "CNT_COLUMN"
 | |
|             ],
 | |
|             "rel_id": [
 | |
|               1
 | |
|             ],
 | |
|             "table_id":1099511677877,
 | |
|             "column_id":16,
 | |
|             "database_name":"ambiguous",
 | |
|             "table_name":"t1",
 | |
|             "synonym_name":"",
 | |
|             "column_name":"c1",
 | |
|             "expr_level":0,
 | |
|             "expr_levels": [
 | |
|               0
 | |
|             ],
 | |
|             "column_flags":0,
 | |
|             "is_explicited_referece":true,
 | |
|             "explicited_ref_count":1,
 | |
|             "enum_set_values": [
 | |
|             ],
 | |
|             "is_lob_column":false
 | |
|           },
 | |
|           "is_alias":false,
 | |
|           "alias_name":"c1",
 | |
|           "expr_name":"c1",
 | |
|           "default": {
 | |
|             "NULL":"NULL"
 | |
|           }
 | |
|         },
 | |
|          {
 | |
|           "expression": {
 | |
|             "item_type":"T_REF_COLUMN",
 | |
|             "result_type": {
 | |
|               "meta": {
 | |
|                 "type":"INT",
 | |
|                 "collation":"binary",
 | |
|                 "coercibility":"NUMERIC"
 | |
|               },
 | |
|               "accuracy": {
 | |
|                 "length":-1,
 | |
|                 "precision":11,
 | |
|                 "scale":0
 | |
|               },
 | |
|               "flag":0,
 | |
|               "calc_type": {
 | |
|                 "type":"NULL",
 | |
|                 "collation":"invalid_type",
 | |
|                 "coercibility":"INVALID"
 | |
|               }
 | |
|             },
 | |
|             "expr_info": [
 | |
|               "IS_COLUMN",
 | |
|               "CNT_COLUMN"
 | |
|             ],
 | |
|             "rel_id": [
 | |
|               1
 | |
|             ],
 | |
|             "table_id":1099511677877,
 | |
|             "column_id":17,
 | |
|             "database_name":"ambiguous",
 | |
|             "table_name":"t1",
 | |
|             "synonym_name":"",
 | |
|             "column_name":"c2",
 | |
|             "expr_level":0,
 | |
|             "expr_levels": [
 | |
|               0
 | |
|             ],
 | |
|             "column_flags":0,
 | |
|             "is_explicited_referece":true,
 | |
|             "explicited_ref_count":1,
 | |
|             "enum_set_values": [
 | |
|             ],
 | |
|             "is_lob_column":false
 | |
|           },
 | |
|           "is_alias":false,
 | |
|           "alias_name":"c2",
 | |
|           "expr_name":"c2",
 | |
|           "default": {
 | |
|             "NULL":"NULL"
 | |
|           }
 | |
|         }
 | |
|       ],
 | |
|       "distinct":false,
 | |
|       "rollup":false,
 | |
|       "nocycle":false,
 | |
|       "from": [
 | |
|          {
 | |
|           "table_id":1099511677877,
 | |
|           "is_join":false
 | |
|         }
 | |
|       ],
 | |
|       "start_with": [
 | |
|       ],
 | |
|       "connect_by": [
 | |
|       ],
 | |
|       "where": [
 | |
|       ],
 | |
|       "group_by": [
 | |
|       ],
 | |
|       "having": [
 | |
|       ],
 | |
|       "aggr_func": [
 | |
|       ],
 | |
|       "order_by": [
 | |
|       ],
 | |
|       "limit":null,
 | |
|       "offset":null,
 | |
|       "show_stmt_ctx": {
 | |
|         "is_from_show_stmt":false,
 | |
|         "global_scope":false,
 | |
|         "tenant_id":-1,
 | |
|         "show_database_id":-1,
 | |
|         "show_table_id":-1,
 | |
|         "grants_user_id":-1
 | |
|       },
 | |
|       "hint": {
 | |
|         "read_static":false,
 | |
|         "no_rewrite":false,
 | |
|         "frozen_version":-1,
 | |
|         "topk_precision":-1,
 | |
|         "sharding_minimum_row_count":0,
 | |
|         "query_timeout":-1,
 | |
|         "hotspot":false,
 | |
|         "index": [
 | |
|         ],
 | |
|         "read_consistency":-1,
 | |
|         "join_ordered":false,
 | |
|         "join_order": [
 | |
|         ],
 | |
|         "merge_hint_ids": [
 | |
|         ],
 | |
|         "hash_hint_ids": [
 | |
|         ],
 | |
|         "no_hash_hint_ids": [
 | |
|         ],
 | |
|         "nl_hint_ids": [
 | |
|         ],
 | |
|         "part_hints": [
 | |
|         ],
 | |
|         "use_late_materialization":-1,
 | |
|         "log_level":"",
 | |
|         "max_concurrent":-1,
 | |
|         "only_concurrent_hint":false,
 | |
|         "has_hint_exclude_concurrent":false,
 | |
|         "parallel":-1,
 | |
|         "use_px":2,
 | |
|         "use join filter":false,
 | |
|         "org_pq_distributes": [
 | |
|         ],
 | |
|         "pq_distributes": [
 | |
|         ]
 | |
|       },
 | |
|       "query_context": {
 | |
|         "param_num":0,
 | |
|         "fetch_cur_time":true,
 | |
|         "calculable_items": [
 | |
|         ]
 | |
|       },
 | |
|       "extra_output_exprs": [
 | |
|       ],
 | |
|       "current_level":0,
 | |
|       "equal_sets": [
 | |
|       ],
 | |
|       "pseudo_column_exprs": [
 | |
|       ],
 | |
|       "child_stmts": [
 | |
|       ],
 | |
|       "has_transformed_for_hierarchical_query":false,
 | |
|       "is_hierarchical_query":false
 | |
|     }
 | |
|   ],
 | |
|   "has_transformed_for_hierarchical_query":false,
 | |
|   "is_hierarchical_query":false
 | |
| }
 | |
| ***************   Case 17   ***************
 | |
| SELECT * FROM t1 LEFT JOIN t2 USING (c1) WHERE c1 IS NULL;
 | |
| {
 | |
|   "stmt_type":1,
 | |
|   "table": [
 | |
|      {
 | |
|       "table_id":1099511677877,
 | |
|       "table_name":"t1",
 | |
|       "alias_name":"",
 | |
|       "synonym_name":"",
 | |
|       "table_type":0,
 | |
|       "ref_id":1099511677877,
 | |
|       "database_name":"ambiguous",
 | |
|       "for_update":false,
 | |
|       "wait":-1,
 | |
|       "mock_id":-1,
 | |
|       "view_base_item":-1
 | |
|     },
 | |
|      {
 | |
|       "table_id":1099511677878,
 | |
|       "table_name":"t2",
 | |
|       "alias_name":"",
 | |
|       "synonym_name":"",
 | |
|       "table_type":0,
 | |
|       "ref_id":1099511677878,
 | |
|       "database_name":"ambiguous",
 | |
|       "for_update":false,
 | |
|       "wait":-1,
 | |
|       "mock_id":-1,
 | |
|       "view_base_item":-1
 | |
|     }
 | |
|   ],
 | |
|   "joined_table": [
 | |
|      {
 | |
|       "table_id":-2,
 | |
|       "table_type":3,
 | |
|       "join_type":"OUTER JOIN",
 | |
|       "left_table": {
 | |
|         "table_id":1099511677877,
 | |
|         "table_name":"t1",
 | |
|         "alias_name":"",
 | |
|         "synonym_name":"",
 | |
|         "table_type":0,
 | |
|         "ref_id":1099511677877,
 | |
|         "database_name":"ambiguous",
 | |
|         "for_update":false,
 | |
|         "wait":-1,
 | |
|         "mock_id":-1,
 | |
|         "view_base_item":-1
 | |
|       },
 | |
|       "right_table": {
 | |
|         "table_id":1099511677878,
 | |
|         "table_name":"t2",
 | |
|         "alias_name":"",
 | |
|         "synonym_name":"",
 | |
|         "table_type":0,
 | |
|         "ref_id":1099511677878,
 | |
|         "database_name":"ambiguous",
 | |
|         "for_update":false,
 | |
|         "wait":-1,
 | |
|         "mock_id":-1,
 | |
|         "view_base_item":-1
 | |
|       },
 | |
|       "join_condition": [
 | |
|          {
 | |
|           "item_type":"T_OP_EQ",
 | |
|           "result_type": {
 | |
|             "meta": {
 | |
|               "type":"INT",
 | |
|               "collation":"binary",
 | |
|               "coercibility":"NUMERIC"
 | |
|             },
 | |
|             "accuracy": {
 | |
|               "length":-1,
 | |
|               "precision":1,
 | |
|               "scale":0
 | |
|             },
 | |
|             "flag":1,
 | |
|             "calc_type": {
 | |
|               "type":"INT",
 | |
|               "collation":"binary",
 | |
|               "coercibility":"NUMERIC"
 | |
|             }
 | |
|           },
 | |
|           "expr_info": [
 | |
|             "CNT_COLUMN",
 | |
|             "IS_JOIN_COND"
 | |
|           ],
 | |
|           "rel_id": [
 | |
|             1,
 | |
|             2
 | |
|           ],
 | |
|           "expr_levels": [
 | |
|             0
 | |
|           ],
 | |
|           "children": [
 | |
|              {
 | |
|               "item_type":"T_REF_COLUMN",
 | |
|               "result_type": {
 | |
|                 "meta": {
 | |
|                   "type":"INT",
 | |
|                   "collation":"binary",
 | |
|                   "coercibility":"NUMERIC"
 | |
|                 },
 | |
|                 "accuracy": {
 | |
|                   "length":-1,
 | |
|                   "precision":11,
 | |
|                   "scale":0
 | |
|                 },
 | |
|                 "flag":16387,
 | |
|                 "calc_type": {
 | |
|                   "type":"NULL",
 | |
|                   "collation":"invalid_type",
 | |
|                   "coercibility":"INVALID"
 | |
|                 }
 | |
|               },
 | |
|               "expr_info": [
 | |
|                 "IS_COLUMN",
 | |
|                 "CNT_COLUMN"
 | |
|               ],
 | |
|               "rel_id": [
 | |
|                 1
 | |
|               ],
 | |
|               "table_id":1099511677877,
 | |
|               "column_id":16,
 | |
|               "database_name":"ambiguous",
 | |
|               "table_name":"t1",
 | |
|               "synonym_name":"",
 | |
|               "column_name":"c1",
 | |
|               "expr_level":0,
 | |
|               "expr_levels": [
 | |
|                 0
 | |
|               ],
 | |
|               "column_flags":0,
 | |
|               "is_explicited_referece":true,
 | |
|               "explicited_ref_count":3,
 | |
|               "enum_set_values": [
 | |
|               ],
 | |
|               "is_lob_column":false
 | |
|             },
 | |
|              {
 | |
|               "item_type":"T_REF_COLUMN",
 | |
|               "result_type": {
 | |
|                 "meta": {
 | |
|                   "type":"INT",
 | |
|                   "collation":"binary",
 | |
|                   "coercibility":"NUMERIC"
 | |
|                 },
 | |
|                 "accuracy": {
 | |
|                   "length":-1,
 | |
|                   "precision":11,
 | |
|                   "scale":0
 | |
|                 },
 | |
|                 "flag":16387,
 | |
|                 "calc_type": {
 | |
|                   "type":"NULL",
 | |
|                   "collation":"invalid_type",
 | |
|                   "coercibility":"INVALID"
 | |
|                 }
 | |
|               },
 | |
|               "expr_info": [
 | |
|                 "IS_COLUMN",
 | |
|                 "CNT_COLUMN"
 | |
|               ],
 | |
|               "rel_id": [
 | |
|                 2
 | |
|               ],
 | |
|               "table_id":1099511677878,
 | |
|               "column_id":16,
 | |
|               "database_name":"ambiguous",
 | |
|               "table_name":"t2",
 | |
|               "synonym_name":"",
 | |
|               "column_name":"c1",
 | |
|               "expr_level":0,
 | |
|               "expr_levels": [
 | |
|                 0
 | |
|               ],
 | |
|               "column_flags":0,
 | |
|               "is_explicited_referece":true,
 | |
|               "explicited_ref_count":2,
 | |
|               "enum_set_values": [
 | |
|               ],
 | |
|               "is_lob_column":false
 | |
|             }
 | |
|           ]
 | |
|         }
 | |
|       ]
 | |
|     }
 | |
|   ],
 | |
|   "partition_express": [
 | |
|   ],
 | |
|   "column": [
 | |
|      {
 | |
|       "column_id":16,
 | |
|       "table_id":1099511677877,
 | |
|       "column":"c1",
 | |
|       "auto_filled_timestamp":false,
 | |
|       "default_value": {
 | |
|         "NULL":"NULL"
 | |
|       },
 | |
|       "base_tid":1099511677877,
 | |
|       "base_cid":16,
 | |
|       "expression": {
 | |
|         "item_type":"T_REF_COLUMN",
 | |
|         "result_type": {
 | |
|           "meta": {
 | |
|             "type":"INT",
 | |
|             "collation":"binary",
 | |
|             "coercibility":"NUMERIC"
 | |
|           },
 | |
|           "accuracy": {
 | |
|             "length":-1,
 | |
|             "precision":11,
 | |
|             "scale":0
 | |
|           },
 | |
|           "flag":16387,
 | |
|           "calc_type": {
 | |
|             "type":"NULL",
 | |
|             "collation":"invalid_type",
 | |
|             "coercibility":"INVALID"
 | |
|           }
 | |
|         },
 | |
|         "expr_info": [
 | |
|           "IS_COLUMN",
 | |
|           "CNT_COLUMN"
 | |
|         ],
 | |
|         "rel_id": [
 | |
|           1
 | |
|         ],
 | |
|         "table_id":1099511677877,
 | |
|         "column_id":16,
 | |
|         "database_name":"ambiguous",
 | |
|         "table_name":"t1",
 | |
|         "synonym_name":"",
 | |
|         "column_name":"c1",
 | |
|         "expr_level":0,
 | |
|         "expr_levels": [
 | |
|           0
 | |
|         ],
 | |
|         "column_flags":0,
 | |
|         "is_explicited_referece":true,
 | |
|         "explicited_ref_count":3,
 | |
|         "enum_set_values": [
 | |
|         ],
 | |
|         "is_lob_column":false
 | |
|       }
 | |
|     },
 | |
|      {
 | |
|       "column_id":16,
 | |
|       "table_id":1099511677878,
 | |
|       "column":"c1",
 | |
|       "auto_filled_timestamp":false,
 | |
|       "default_value": {
 | |
|         "NULL":"NULL"
 | |
|       },
 | |
|       "base_tid":1099511677878,
 | |
|       "base_cid":16,
 | |
|       "expression": {
 | |
|         "item_type":"T_REF_COLUMN",
 | |
|         "result_type": {
 | |
|           "meta": {
 | |
|             "type":"INT",
 | |
|             "collation":"binary",
 | |
|             "coercibility":"NUMERIC"
 | |
|           },
 | |
|           "accuracy": {
 | |
|             "length":-1,
 | |
|             "precision":11,
 | |
|             "scale":0
 | |
|           },
 | |
|           "flag":16387,
 | |
|           "calc_type": {
 | |
|             "type":"NULL",
 | |
|             "collation":"invalid_type",
 | |
|             "coercibility":"INVALID"
 | |
|           }
 | |
|         },
 | |
|         "expr_info": [
 | |
|           "IS_COLUMN",
 | |
|           "CNT_COLUMN"
 | |
|         ],
 | |
|         "rel_id": [
 | |
|           2
 | |
|         ],
 | |
|         "table_id":1099511677878,
 | |
|         "column_id":16,
 | |
|         "database_name":"ambiguous",
 | |
|         "table_name":"t2",
 | |
|         "synonym_name":"",
 | |
|         "column_name":"c1",
 | |
|         "expr_level":0,
 | |
|         "expr_levels": [
 | |
|           0
 | |
|         ],
 | |
|         "column_flags":0,
 | |
|         "is_explicited_referece":true,
 | |
|         "explicited_ref_count":2,
 | |
|         "enum_set_values": [
 | |
|         ],
 | |
|         "is_lob_column":false
 | |
|       }
 | |
|     },
 | |
|      {
 | |
|       "column_id":17,
 | |
|       "table_id":1099511677877,
 | |
|       "column":"c2",
 | |
|       "auto_filled_timestamp":false,
 | |
|       "default_value": {
 | |
|         "NULL":"NULL"
 | |
|       },
 | |
|       "base_tid":1099511677877,
 | |
|       "base_cid":17,
 | |
|       "expression": {
 | |
|         "item_type":"T_REF_COLUMN",
 | |
|         "result_type": {
 | |
|           "meta": {
 | |
|             "type":"INT",
 | |
|             "collation":"binary",
 | |
|             "coercibility":"NUMERIC"
 | |
|           },
 | |
|           "accuracy": {
 | |
|             "length":-1,
 | |
|             "precision":11,
 | |
|             "scale":0
 | |
|           },
 | |
|           "flag":0,
 | |
|           "calc_type": {
 | |
|             "type":"NULL",
 | |
|             "collation":"invalid_type",
 | |
|             "coercibility":"INVALID"
 | |
|           }
 | |
|         },
 | |
|         "expr_info": [
 | |
|           "IS_COLUMN",
 | |
|           "CNT_COLUMN"
 | |
|         ],
 | |
|         "rel_id": [
 | |
|           1
 | |
|         ],
 | |
|         "table_id":1099511677877,
 | |
|         "column_id":17,
 | |
|         "database_name":"ambiguous",
 | |
|         "table_name":"t1",
 | |
|         "synonym_name":"",
 | |
|         "column_name":"c2",
 | |
|         "expr_level":0,
 | |
|         "expr_levels": [
 | |
|           0
 | |
|         ],
 | |
|         "column_flags":0,
 | |
|         "is_explicited_referece":true,
 | |
|         "explicited_ref_count":1,
 | |
|         "enum_set_values": [
 | |
|         ],
 | |
|         "is_lob_column":false
 | |
|       }
 | |
|     },
 | |
|      {
 | |
|       "column_id":17,
 | |
|       "table_id":1099511677878,
 | |
|       "column":"c2",
 | |
|       "auto_filled_timestamp":false,
 | |
|       "default_value": {
 | |
|         "NULL":"NULL"
 | |
|       },
 | |
|       "base_tid":1099511677878,
 | |
|       "base_cid":17,
 | |
|       "expression": {
 | |
|         "item_type":"T_REF_COLUMN",
 | |
|         "result_type": {
 | |
|           "meta": {
 | |
|             "type":"INT",
 | |
|             "collation":"binary",
 | |
|             "coercibility":"NUMERIC"
 | |
|           },
 | |
|           "accuracy": {
 | |
|             "length":-1,
 | |
|             "precision":11,
 | |
|             "scale":0
 | |
|           },
 | |
|           "flag":0,
 | |
|           "calc_type": {
 | |
|             "type":"NULL",
 | |
|             "collation":"invalid_type",
 | |
|             "coercibility":"INVALID"
 | |
|           }
 | |
|         },
 | |
|         "expr_info": [
 | |
|           "IS_COLUMN",
 | |
|           "CNT_COLUMN"
 | |
|         ],
 | |
|         "rel_id": [
 | |
|           2
 | |
|         ],
 | |
|         "table_id":1099511677878,
 | |
|         "column_id":17,
 | |
|         "database_name":"ambiguous",
 | |
|         "table_name":"t2",
 | |
|         "synonym_name":"",
 | |
|         "column_name":"c2",
 | |
|         "expr_level":0,
 | |
|         "expr_levels": [
 | |
|           0
 | |
|         ],
 | |
|         "column_flags":0,
 | |
|         "is_explicited_referece":true,
 | |
|         "explicited_ref_count":1,
 | |
|         "enum_set_values": [
 | |
|         ],
 | |
|         "is_lob_column":false
 | |
|       }
 | |
|     }
 | |
|   ],
 | |
|   "select": [
 | |
|      {
 | |
|       "expression": {
 | |
|         "item_type":"T_REF_COLUMN",
 | |
|         "result_type": {
 | |
|           "meta": {
 | |
|             "type":"INT",
 | |
|             "collation":"binary",
 | |
|             "coercibility":"NUMERIC"
 | |
|           },
 | |
|           "accuracy": {
 | |
|             "length":-1,
 | |
|             "precision":11,
 | |
|             "scale":0
 | |
|           },
 | |
|           "flag":16387,
 | |
|           "calc_type": {
 | |
|             "type":"NULL",
 | |
|             "collation":"invalid_type",
 | |
|             "coercibility":"INVALID"
 | |
|           }
 | |
|         },
 | |
|         "expr_info": [
 | |
|           "IS_COLUMN",
 | |
|           "CNT_COLUMN"
 | |
|         ],
 | |
|         "rel_id": [
 | |
|           1
 | |
|         ],
 | |
|         "table_id":1099511677877,
 | |
|         "column_id":16,
 | |
|         "database_name":"ambiguous",
 | |
|         "table_name":"t1",
 | |
|         "synonym_name":"",
 | |
|         "column_name":"c1",
 | |
|         "expr_level":0,
 | |
|         "expr_levels": [
 | |
|           0
 | |
|         ],
 | |
|         "column_flags":0,
 | |
|         "is_explicited_referece":true,
 | |
|         "explicited_ref_count":3,
 | |
|         "enum_set_values": [
 | |
|         ],
 | |
|         "is_lob_column":false
 | |
|       },
 | |
|       "is_alias":false,
 | |
|       "alias_name":"c1",
 | |
|       "expr_name":"c1",
 | |
|       "default": {
 | |
|         "NULL":"NULL"
 | |
|       }
 | |
|     },
 | |
|      {
 | |
|       "expression": {
 | |
|         "item_type":"T_REF_COLUMN",
 | |
|         "result_type": {
 | |
|           "meta": {
 | |
|             "type":"INT",
 | |
|             "collation":"binary",
 | |
|             "coercibility":"NUMERIC"
 | |
|           },
 | |
|           "accuracy": {
 | |
|             "length":-1,
 | |
|             "precision":11,
 | |
|             "scale":0
 | |
|           },
 | |
|           "flag":0,
 | |
|           "calc_type": {
 | |
|             "type":"NULL",
 | |
|             "collation":"invalid_type",
 | |
|             "coercibility":"INVALID"
 | |
|           }
 | |
|         },
 | |
|         "expr_info": [
 | |
|           "IS_COLUMN",
 | |
|           "CNT_COLUMN"
 | |
|         ],
 | |
|         "rel_id": [
 | |
|           1
 | |
|         ],
 | |
|         "table_id":1099511677877,
 | |
|         "column_id":17,
 | |
|         "database_name":"ambiguous",
 | |
|         "table_name":"t1",
 | |
|         "synonym_name":"",
 | |
|         "column_name":"c2",
 | |
|         "expr_level":0,
 | |
|         "expr_levels": [
 | |
|           0
 | |
|         ],
 | |
|         "column_flags":0,
 | |
|         "is_explicited_referece":true,
 | |
|         "explicited_ref_count":1,
 | |
|         "enum_set_values": [
 | |
|         ],
 | |
|         "is_lob_column":false
 | |
|       },
 | |
|       "is_alias":false,
 | |
|       "alias_name":"c2",
 | |
|       "expr_name":"c2",
 | |
|       "default": {
 | |
|         "NULL":"NULL"
 | |
|       }
 | |
|     },
 | |
|      {
 | |
|       "expression": {
 | |
|         "item_type":"T_REF_COLUMN",
 | |
|         "result_type": {
 | |
|           "meta": {
 | |
|             "type":"INT",
 | |
|             "collation":"binary",
 | |
|             "coercibility":"NUMERIC"
 | |
|           },
 | |
|           "accuracy": {
 | |
|             "length":-1,
 | |
|             "precision":11,
 | |
|             "scale":0
 | |
|           },
 | |
|           "flag":0,
 | |
|           "calc_type": {
 | |
|             "type":"NULL",
 | |
|             "collation":"invalid_type",
 | |
|             "coercibility":"INVALID"
 | |
|           }
 | |
|         },
 | |
|         "expr_info": [
 | |
|           "IS_COLUMN",
 | |
|           "CNT_COLUMN"
 | |
|         ],
 | |
|         "rel_id": [
 | |
|           2
 | |
|         ],
 | |
|         "table_id":1099511677878,
 | |
|         "column_id":17,
 | |
|         "database_name":"ambiguous",
 | |
|         "table_name":"t2",
 | |
|         "synonym_name":"",
 | |
|         "column_name":"c2",
 | |
|         "expr_level":0,
 | |
|         "expr_levels": [
 | |
|           0
 | |
|         ],
 | |
|         "column_flags":0,
 | |
|         "is_explicited_referece":true,
 | |
|         "explicited_ref_count":1,
 | |
|         "enum_set_values": [
 | |
|         ],
 | |
|         "is_lob_column":false
 | |
|       },
 | |
|       "is_alias":false,
 | |
|       "alias_name":"c2",
 | |
|       "expr_name":"c2",
 | |
|       "default": {
 | |
|         "NULL":"NULL"
 | |
|       }
 | |
|     }
 | |
|   ],
 | |
|   "distinct":false,
 | |
|   "rollup":false,
 | |
|   "nocycle":false,
 | |
|   "from": [
 | |
|      {
 | |
|       "table_id":-2,
 | |
|       "is_join":true
 | |
|     }
 | |
|   ],
 | |
|   "start_with": [
 | |
|   ],
 | |
|   "connect_by": [
 | |
|   ],
 | |
|   "where": [
 | |
|      {
 | |
|       "item_type":"T_OP_IS",
 | |
|       "result_type": {
 | |
|         "meta": {
 | |
|           "type":"INT",
 | |
|           "collation":"binary",
 | |
|           "coercibility":"NUMERIC"
 | |
|         },
 | |
|         "accuracy": {
 | |
|           "length":-1,
 | |
|           "precision":1,
 | |
|           "scale":0
 | |
|         },
 | |
|         "flag":1,
 | |
|         "calc_type": {
 | |
|           "type":"DECIMAL",
 | |
|           "collation":"binary",
 | |
|           "coercibility":"NUMERIC"
 | |
|         }
 | |
|       },
 | |
|       "expr_info": [
 | |
|         "IS_IS_EXPR",
 | |
|         "CNT_CONST",
 | |
|         "CNT_COLUMN",
 | |
|         "CNT_IS_EXPR"
 | |
|       ],
 | |
|       "rel_id": [
 | |
|         1
 | |
|       ],
 | |
|       "expr_levels": [
 | |
|         0
 | |
|       ],
 | |
|       "children": [
 | |
|          {
 | |
|           "item_type":"T_REF_COLUMN",
 | |
|           "result_type": {
 | |
|             "meta": {
 | |
|               "type":"INT",
 | |
|               "collation":"binary",
 | |
|               "coercibility":"NUMERIC"
 | |
|             },
 | |
|             "accuracy": {
 | |
|               "length":-1,
 | |
|               "precision":11,
 | |
|               "scale":0
 | |
|             },
 | |
|             "flag":16387,
 | |
|             "calc_type": {
 | |
|               "type":"NULL",
 | |
|               "collation":"invalid_type",
 | |
|               "coercibility":"INVALID"
 | |
|             }
 | |
|           },
 | |
|           "expr_info": [
 | |
|             "IS_COLUMN",
 | |
|             "CNT_COLUMN"
 | |
|           ],
 | |
|           "rel_id": [
 | |
|             1
 | |
|           ],
 | |
|           "table_id":1099511677877,
 | |
|           "column_id":16,
 | |
|           "database_name":"ambiguous",
 | |
|           "table_name":"t1",
 | |
|           "synonym_name":"",
 | |
|           "column_name":"c1",
 | |
|           "expr_level":0,
 | |
|           "expr_levels": [
 | |
|             0
 | |
|           ],
 | |
|           "column_flags":0,
 | |
|           "is_explicited_referece":true,
 | |
|           "explicited_ref_count":3,
 | |
|           "enum_set_values": [
 | |
|           ],
 | |
|           "is_lob_column":false
 | |
|         },
 | |
|          {
 | |
|           "item_type":"T_NULL",
 | |
|           "result_type": {
 | |
|             "meta": {
 | |
|               "type":"NULL",
 | |
|               "collation":"binary",
 | |
|               "coercibility":"IGNORABLE"
 | |
|             },
 | |
|             "accuracy": {
 | |
|               "length":0,
 | |
|               "precision":-1,
 | |
|               "scale":-1
 | |
|             },
 | |
|             "flag":0,
 | |
|             "calc_type": {
 | |
|               "type":"NULL",
 | |
|               "collation":"invalid_type",
 | |
|               "coercibility":"INVALID"
 | |
|             }
 | |
|           },
 | |
|           "expr_info": [
 | |
|             "IS_CONST",
 | |
|             "CNT_CONST"
 | |
|           ],
 | |
|           "rel_id": [
 | |
|           ],
 | |
|           "value": {
 | |
|             "NULL":"NULL"
 | |
|           }
 | |
|         },
 | |
|          {
 | |
|           "item_type":"T_BOOL",
 | |
|           "result_type": {
 | |
|             "meta": {
 | |
|               "type":"TINYINT",
 | |
|               "collation":"binary",
 | |
|               "coercibility":"NUMERIC"
 | |
|             },
 | |
|             "accuracy": {
 | |
|               "length":-1,
 | |
|               "precision":-1,
 | |
|               "scale":-1
 | |
|             },
 | |
|             "flag":1,
 | |
|             "calc_type": {
 | |
|               "type":"NULL",
 | |
|               "collation":"invalid_type",
 | |
|               "coercibility":"INVALID"
 | |
|             }
 | |
|           },
 | |
|           "expr_info": [
 | |
|             "IS_CONST",
 | |
|             "CNT_CONST"
 | |
|           ],
 | |
|           "rel_id": [
 | |
|           ],
 | |
|           "value": {
 | |
|             "TINYINT":0
 | |
|           }
 | |
|         }
 | |
|       ]
 | |
|     }
 | |
|   ],
 | |
|   "group_by": [
 | |
|   ],
 | |
|   "having": [
 | |
|   ],
 | |
|   "aggr_func": [
 | |
|   ],
 | |
|   "order_by": [
 | |
|   ],
 | |
|   "limit":null,
 | |
|   "offset":null,
 | |
|   "show_stmt_ctx": {
 | |
|     "is_from_show_stmt":false,
 | |
|     "global_scope":false,
 | |
|     "tenant_id":-1,
 | |
|     "show_database_id":-1,
 | |
|     "show_table_id":-1,
 | |
|     "grants_user_id":-1
 | |
|   },
 | |
|   "hint": {
 | |
|     "read_static":false,
 | |
|     "no_rewrite":false,
 | |
|     "frozen_version":-1,
 | |
|     "topk_precision":-1,
 | |
|     "sharding_minimum_row_count":0,
 | |
|     "query_timeout":-1,
 | |
|     "hotspot":false,
 | |
|     "index": [
 | |
|     ],
 | |
|     "read_consistency":-1,
 | |
|     "join_ordered":false,
 | |
|     "join_order": [
 | |
|     ],
 | |
|     "merge_hint_ids": [
 | |
|     ],
 | |
|     "hash_hint_ids": [
 | |
|     ],
 | |
|     "no_hash_hint_ids": [
 | |
|     ],
 | |
|     "nl_hint_ids": [
 | |
|     ],
 | |
|     "part_hints": [
 | |
|     ],
 | |
|     "use_late_materialization":-1,
 | |
|     "log_level":"",
 | |
|     "max_concurrent":-1,
 | |
|     "only_concurrent_hint":false,
 | |
|     "has_hint_exclude_concurrent":false,
 | |
|     "parallel":-1,
 | |
|     "use_px":2,
 | |
|     "use join filter":false,
 | |
|     "org_pq_distributes": [
 | |
|     ],
 | |
|     "pq_distributes": [
 | |
|     ]
 | |
|   },
 | |
|   "query_context": {
 | |
|     "param_num":0,
 | |
|     "fetch_cur_time":true,
 | |
|     "calculable_items": [
 | |
|     ]
 | |
|   },
 | |
|   "extra_output_exprs": [
 | |
|   ],
 | |
|   "current_level":0,
 | |
|   "equal_sets": [
 | |
|   ],
 | |
|   "pseudo_column_exprs": [
 | |
|   ],
 | |
|   "child_stmts": [
 | |
|   ],
 | |
|   "has_transformed_for_hierarchical_query":false,
 | |
|   "is_hierarchical_query":false
 | |
| }
 | |
| ***************   Case 18   ***************
 | |
| select c2 from t1 left join t2 using(c2);
 | |
| {
 | |
|   "stmt_type":1,
 | |
|   "table": [
 | |
|      {
 | |
|       "table_id":1099511677877,
 | |
|       "table_name":"t1",
 | |
|       "alias_name":"",
 | |
|       "synonym_name":"",
 | |
|       "table_type":0,
 | |
|       "ref_id":1099511677877,
 | |
|       "database_name":"ambiguous",
 | |
|       "for_update":false,
 | |
|       "wait":-1,
 | |
|       "mock_id":-1,
 | |
|       "view_base_item":-1
 | |
|     },
 | |
|      {
 | |
|       "table_id":1099511677878,
 | |
|       "table_name":"t2",
 | |
|       "alias_name":"",
 | |
|       "synonym_name":"",
 | |
|       "table_type":0,
 | |
|       "ref_id":1099511677878,
 | |
|       "database_name":"ambiguous",
 | |
|       "for_update":false,
 | |
|       "wait":-1,
 | |
|       "mock_id":-1,
 | |
|       "view_base_item":-1
 | |
|     }
 | |
|   ],
 | |
|   "joined_table": [
 | |
|      {
 | |
|       "table_id":-2,
 | |
|       "table_type":3,
 | |
|       "join_type":"OUTER JOIN",
 | |
|       "left_table": {
 | |
|         "table_id":1099511677877,
 | |
|         "table_name":"t1",
 | |
|         "alias_name":"",
 | |
|         "synonym_name":"",
 | |
|         "table_type":0,
 | |
|         "ref_id":1099511677877,
 | |
|         "database_name":"ambiguous",
 | |
|         "for_update":false,
 | |
|         "wait":-1,
 | |
|         "mock_id":-1,
 | |
|         "view_base_item":-1
 | |
|       },
 | |
|       "right_table": {
 | |
|         "table_id":1099511677878,
 | |
|         "table_name":"t2",
 | |
|         "alias_name":"",
 | |
|         "synonym_name":"",
 | |
|         "table_type":0,
 | |
|         "ref_id":1099511677878,
 | |
|         "database_name":"ambiguous",
 | |
|         "for_update":false,
 | |
|         "wait":-1,
 | |
|         "mock_id":-1,
 | |
|         "view_base_item":-1
 | |
|       },
 | |
|       "join_condition": [
 | |
|          {
 | |
|           "item_type":"T_OP_EQ",
 | |
|           "result_type": {
 | |
|             "meta": {
 | |
|               "type":"INT",
 | |
|               "collation":"binary",
 | |
|               "coercibility":"NUMERIC"
 | |
|             },
 | |
|             "accuracy": {
 | |
|               "length":-1,
 | |
|               "precision":1,
 | |
|               "scale":0
 | |
|             },
 | |
|             "flag":0,
 | |
|             "calc_type": {
 | |
|               "type":"INT",
 | |
|               "collation":"binary",
 | |
|               "coercibility":"NUMERIC"
 | |
|             }
 | |
|           },
 | |
|           "expr_info": [
 | |
|             "CNT_COLUMN",
 | |
|             "IS_JOIN_COND"
 | |
|           ],
 | |
|           "rel_id": [
 | |
|             1,
 | |
|             2
 | |
|           ],
 | |
|           "expr_levels": [
 | |
|             0
 | |
|           ],
 | |
|           "children": [
 | |
|              {
 | |
|               "item_type":"T_REF_COLUMN",
 | |
|               "result_type": {
 | |
|                 "meta": {
 | |
|                   "type":"INT",
 | |
|                   "collation":"binary",
 | |
|                   "coercibility":"NUMERIC"
 | |
|                 },
 | |
|                 "accuracy": {
 | |
|                   "length":-1,
 | |
|                   "precision":11,
 | |
|                   "scale":0
 | |
|                 },
 | |
|                 "flag":0,
 | |
|                 "calc_type": {
 | |
|                   "type":"NULL",
 | |
|                   "collation":"invalid_type",
 | |
|                   "coercibility":"INVALID"
 | |
|                 }
 | |
|               },
 | |
|               "expr_info": [
 | |
|                 "IS_COLUMN",
 | |
|                 "CNT_COLUMN"
 | |
|               ],
 | |
|               "rel_id": [
 | |
|                 1
 | |
|               ],
 | |
|               "table_id":1099511677877,
 | |
|               "column_id":17,
 | |
|               "database_name":"ambiguous",
 | |
|               "table_name":"t1",
 | |
|               "synonym_name":"",
 | |
|               "column_name":"c2",
 | |
|               "expr_level":0,
 | |
|               "expr_levels": [
 | |
|                 0
 | |
|               ],
 | |
|               "column_flags":0,
 | |
|               "is_explicited_referece":true,
 | |
|               "explicited_ref_count":2,
 | |
|               "enum_set_values": [
 | |
|               ],
 | |
|               "is_lob_column":false
 | |
|             },
 | |
|              {
 | |
|               "item_type":"T_REF_COLUMN",
 | |
|               "result_type": {
 | |
|                 "meta": {
 | |
|                   "type":"INT",
 | |
|                   "collation":"binary",
 | |
|                   "coercibility":"NUMERIC"
 | |
|                 },
 | |
|                 "accuracy": {
 | |
|                   "length":-1,
 | |
|                   "precision":11,
 | |
|                   "scale":0
 | |
|                 },
 | |
|                 "flag":0,
 | |
|                 "calc_type": {
 | |
|                   "type":"NULL",
 | |
|                   "collation":"invalid_type",
 | |
|                   "coercibility":"INVALID"
 | |
|                 }
 | |
|               },
 | |
|               "expr_info": [
 | |
|                 "IS_COLUMN",
 | |
|                 "CNT_COLUMN"
 | |
|               ],
 | |
|               "rel_id": [
 | |
|                 2
 | |
|               ],
 | |
|               "table_id":1099511677878,
 | |
|               "column_id":17,
 | |
|               "database_name":"ambiguous",
 | |
|               "table_name":"t2",
 | |
|               "synonym_name":"",
 | |
|               "column_name":"c2",
 | |
|               "expr_level":0,
 | |
|               "expr_levels": [
 | |
|                 0
 | |
|               ],
 | |
|               "column_flags":0,
 | |
|               "is_explicited_referece":true,
 | |
|               "explicited_ref_count":1,
 | |
|               "enum_set_values": [
 | |
|               ],
 | |
|               "is_lob_column":false
 | |
|             }
 | |
|           ]
 | |
|         }
 | |
|       ]
 | |
|     }
 | |
|   ],
 | |
|   "partition_express": [
 | |
|   ],
 | |
|   "column": [
 | |
|      {
 | |
|       "column_id":17,
 | |
|       "table_id":1099511677877,
 | |
|       "column":"c2",
 | |
|       "auto_filled_timestamp":false,
 | |
|       "default_value": {
 | |
|         "NULL":"NULL"
 | |
|       },
 | |
|       "base_tid":1099511677877,
 | |
|       "base_cid":17,
 | |
|       "expression": {
 | |
|         "item_type":"T_REF_COLUMN",
 | |
|         "result_type": {
 | |
|           "meta": {
 | |
|             "type":"INT",
 | |
|             "collation":"binary",
 | |
|             "coercibility":"NUMERIC"
 | |
|           },
 | |
|           "accuracy": {
 | |
|             "length":-1,
 | |
|             "precision":11,
 | |
|             "scale":0
 | |
|           },
 | |
|           "flag":0,
 | |
|           "calc_type": {
 | |
|             "type":"NULL",
 | |
|             "collation":"invalid_type",
 | |
|             "coercibility":"INVALID"
 | |
|           }
 | |
|         },
 | |
|         "expr_info": [
 | |
|           "IS_COLUMN",
 | |
|           "CNT_COLUMN"
 | |
|         ],
 | |
|         "rel_id": [
 | |
|           1
 | |
|         ],
 | |
|         "table_id":1099511677877,
 | |
|         "column_id":17,
 | |
|         "database_name":"ambiguous",
 | |
|         "table_name":"t1",
 | |
|         "synonym_name":"",
 | |
|         "column_name":"c2",
 | |
|         "expr_level":0,
 | |
|         "expr_levels": [
 | |
|           0
 | |
|         ],
 | |
|         "column_flags":0,
 | |
|         "is_explicited_referece":true,
 | |
|         "explicited_ref_count":2,
 | |
|         "enum_set_values": [
 | |
|         ],
 | |
|         "is_lob_column":false
 | |
|       }
 | |
|     },
 | |
|      {
 | |
|       "column_id":17,
 | |
|       "table_id":1099511677878,
 | |
|       "column":"c2",
 | |
|       "auto_filled_timestamp":false,
 | |
|       "default_value": {
 | |
|         "NULL":"NULL"
 | |
|       },
 | |
|       "base_tid":1099511677878,
 | |
|       "base_cid":17,
 | |
|       "expression": {
 | |
|         "item_type":"T_REF_COLUMN",
 | |
|         "result_type": {
 | |
|           "meta": {
 | |
|             "type":"INT",
 | |
|             "collation":"binary",
 | |
|             "coercibility":"NUMERIC"
 | |
|           },
 | |
|           "accuracy": {
 | |
|             "length":-1,
 | |
|             "precision":11,
 | |
|             "scale":0
 | |
|           },
 | |
|           "flag":0,
 | |
|           "calc_type": {
 | |
|             "type":"NULL",
 | |
|             "collation":"invalid_type",
 | |
|             "coercibility":"INVALID"
 | |
|           }
 | |
|         },
 | |
|         "expr_info": [
 | |
|           "IS_COLUMN",
 | |
|           "CNT_COLUMN"
 | |
|         ],
 | |
|         "rel_id": [
 | |
|           2
 | |
|         ],
 | |
|         "table_id":1099511677878,
 | |
|         "column_id":17,
 | |
|         "database_name":"ambiguous",
 | |
|         "table_name":"t2",
 | |
|         "synonym_name":"",
 | |
|         "column_name":"c2",
 | |
|         "expr_level":0,
 | |
|         "expr_levels": [
 | |
|           0
 | |
|         ],
 | |
|         "column_flags":0,
 | |
|         "is_explicited_referece":true,
 | |
|         "explicited_ref_count":1,
 | |
|         "enum_set_values": [
 | |
|         ],
 | |
|         "is_lob_column":false
 | |
|       }
 | |
|     }
 | |
|   ],
 | |
|   "select": [
 | |
|      {
 | |
|       "expression": {
 | |
|         "item_type":"T_REF_COLUMN",
 | |
|         "result_type": {
 | |
|           "meta": {
 | |
|             "type":"INT",
 | |
|             "collation":"binary",
 | |
|             "coercibility":"NUMERIC"
 | |
|           },
 | |
|           "accuracy": {
 | |
|             "length":-1,
 | |
|             "precision":11,
 | |
|             "scale":0
 | |
|           },
 | |
|           "flag":0,
 | |
|           "calc_type": {
 | |
|             "type":"NULL",
 | |
|             "collation":"invalid_type",
 | |
|             "coercibility":"INVALID"
 | |
|           }
 | |
|         },
 | |
|         "expr_info": [
 | |
|           "IS_COLUMN",
 | |
|           "CNT_COLUMN"
 | |
|         ],
 | |
|         "rel_id": [
 | |
|           1
 | |
|         ],
 | |
|         "table_id":1099511677877,
 | |
|         "column_id":17,
 | |
|         "database_name":"ambiguous",
 | |
|         "table_name":"t1",
 | |
|         "synonym_name":"",
 | |
|         "column_name":"c2",
 | |
|         "expr_level":0,
 | |
|         "expr_levels": [
 | |
|           0
 | |
|         ],
 | |
|         "column_flags":0,
 | |
|         "is_explicited_referece":true,
 | |
|         "explicited_ref_count":2,
 | |
|         "enum_set_values": [
 | |
|         ],
 | |
|         "is_lob_column":false
 | |
|       },
 | |
|       "is_alias":false,
 | |
|       "alias_name":"c2",
 | |
|       "expr_name":"c2",
 | |
|       "default": {
 | |
|         "NULL":"NULL"
 | |
|       }
 | |
|     }
 | |
|   ],
 | |
|   "distinct":false,
 | |
|   "rollup":false,
 | |
|   "nocycle":false,
 | |
|   "from": [
 | |
|      {
 | |
|       "table_id":-2,
 | |
|       "is_join":true
 | |
|     }
 | |
|   ],
 | |
|   "start_with": [
 | |
|   ],
 | |
|   "connect_by": [
 | |
|   ],
 | |
|   "where": [
 | |
|   ],
 | |
|   "group_by": [
 | |
|   ],
 | |
|   "having": [
 | |
|   ],
 | |
|   "aggr_func": [
 | |
|   ],
 | |
|   "order_by": [
 | |
|   ],
 | |
|   "limit":null,
 | |
|   "offset":null,
 | |
|   "show_stmt_ctx": {
 | |
|     "is_from_show_stmt":false,
 | |
|     "global_scope":false,
 | |
|     "tenant_id":-1,
 | |
|     "show_database_id":-1,
 | |
|     "show_table_id":-1,
 | |
|     "grants_user_id":-1
 | |
|   },
 | |
|   "hint": {
 | |
|     "read_static":false,
 | |
|     "no_rewrite":false,
 | |
|     "frozen_version":-1,
 | |
|     "topk_precision":-1,
 | |
|     "sharding_minimum_row_count":0,
 | |
|     "query_timeout":-1,
 | |
|     "hotspot":false,
 | |
|     "index": [
 | |
|     ],
 | |
|     "read_consistency":-1,
 | |
|     "join_ordered":false,
 | |
|     "join_order": [
 | |
|     ],
 | |
|     "merge_hint_ids": [
 | |
|     ],
 | |
|     "hash_hint_ids": [
 | |
|     ],
 | |
|     "no_hash_hint_ids": [
 | |
|     ],
 | |
|     "nl_hint_ids": [
 | |
|     ],
 | |
|     "part_hints": [
 | |
|     ],
 | |
|     "use_late_materialization":-1,
 | |
|     "log_level":"",
 | |
|     "max_concurrent":-1,
 | |
|     "only_concurrent_hint":false,
 | |
|     "has_hint_exclude_concurrent":false,
 | |
|     "parallel":-1,
 | |
|     "use_px":2,
 | |
|     "use join filter":false,
 | |
|     "org_pq_distributes": [
 | |
|     ],
 | |
|     "pq_distributes": [
 | |
|     ]
 | |
|   },
 | |
|   "query_context": {
 | |
|     "param_num":0,
 | |
|     "fetch_cur_time":true,
 | |
|     "calculable_items": [
 | |
|     ]
 | |
|   },
 | |
|   "extra_output_exprs": [
 | |
|   ],
 | |
|   "current_level":0,
 | |
|   "equal_sets": [
 | |
|   ],
 | |
|   "pseudo_column_exprs": [
 | |
|   ],
 | |
|   "child_stmts": [
 | |
|   ],
 | |
|   "has_transformed_for_hierarchical_query":false,
 | |
|   "is_hierarchical_query":false
 | |
| }
 | |
| ***************   Case 19   ***************
 | |
| drop database ambiguous;
 | |
| {
 | |
|   "drop_database_arg":"tenant_id",
 | |
|   "database_name":"ambiguous",
 | |
|   "if_exist":false,
 | |
|   "to_recyclebin":false
 | |
| }
 | 
