*************** Case 1 *************** drop database if exists subquery_db; { "drop_database_arg":"tenant_id", "database_name":"subquery_db", "if_exist":true, "to_recyclebin":false } *************** Case 2 *************** create database subquery_db; { "create_database_arg":"database_schema", "database_id":-1, "schema_version":1, "database_name":"subquery_db", "replica_num":0, "zone_list": [ ], "primary_zone":"", "charset_type":2, "collation_type":"utf8mb4_general_ci", "name_case_mode":-1, "comment":"", "read_only":false, "default_tablegroup_id":-1, "default_tablegroup_name":"", "in_recyclebin":false, "primary_zone_array": [ ] } *************** Case 3 *************** use subquery_db; { "stmt_type":97 } *************** Case 4 *************** create table t1(c1 int primary key, c2 int); {"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":"subquery_db", "last_replay_log_id":0, "foreign_key_arg_list":[], "vertical_partition_arg_list":[]}, "index_arg_list":[]} *************** Case 5 *************** create table t2(c1 int primary key, c2 int, c3 varchar(32)); {"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":18, "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":"subquery_db", "last_replay_log_id":0, "foreign_key_arg_list":[], "vertical_partition_arg_list":[]}, "index_arg_list":[]} *************** Case 6 *************** create table t3(c1 int, c2 int); {"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":3, "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":1, "type":{"type":"BIGINT UNSIGNED", "collation":"binary", "coercibility":"NUMERIC"}, "order":0, "fulltext_flag":false}, {"length":0, "column_id":4, "type":{"type":"BIGINT UNSIGNED", "collation":"binary", "coercibility":"NUMERIC"}, "order":0, "fulltext_flag":false}, {"length":0, "column_id":5, "type":{"type":"BIGINT UNSIGNED", "collation":"binary", "coercibility":"NUMERIC"}, "order":0, "fulltext_flag":false}], "capacity":3}, "partition_key_info":{"columns":null, "capacity":0}, "aux_vp_tid_array":[]}, "index_arg_list":[], "constraint_list":[], "db_name":"subquery_db", "last_replay_log_id":0, "foreign_key_arg_list":[], "vertical_partition_arg_list":[]}, "index_arg_list":[]} *************** Case 7 *************** select * from t1 where c1>ANY(select c1 from t2); { "stmt_type":1, "table": [ { "table_id":1099511677877, "table_name":"t1", "alias_name":"", "synonym_name":"", "table_type":0, "ref_id":1099511677877, "database_name":"subquery_db", "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":"subquery_db", "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":"subquery_db", "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":"subquery_db", "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 }, "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":"subquery_db", "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": [ { "item_type":"T_OP_SQ_GT", "result_type": { "meta": { "type":"TINYINT", "collation":"binary", "coercibility":"NUMERIC" }, "accuracy": { "length":-1, "precision":4, "scale":0 }, "flag":1, "calc_type": { "type":"NULL", "collation":"invalid_type", "coercibility":"INVALID" } }, "expr_info": [ "CNT_COLUMN", "CNT_SUB_QUERY", "IS_WITH_ANY" ], "rel_id": [ 1 ], "expr_levels": [ 0, 1 ], "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":"subquery_db", "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_QUERY", "result_type": { "meta": { "type":"BIGINT", "collation":"binary", "coercibility":"NUMERIC" }, "accuracy": { "length":-1, "precision":-1, "scale":-1 }, "flag":0, "calc_type": { "type":"NULL", "collation":"invalid_type", "coercibility":"INVALID" } }, "expr_info": [ "IS_SUB_QUERY", "CNT_SUB_QUERY" ], "rel_id": [ ], "id":0, "expr_level":0, "expr_levels": [ 1 ], "output_column":1, "is_set":true, "column_types": [ { "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" } } ], "enum_set_values": [ ] } ] } ], "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": [ { "stmt_type":1, "table": [ { "table_id":1099511677878, "table_name":"t2", "alias_name":"", "synonym_name":"", "table_type":0, "ref_id":1099511677878, "database_name":"subquery_db", "for_update":false, "wait":-1, "mock_id":-1, "view_base_item":-1 } ], "joined_table": [ ], "partition_express": [ ], "column": [ { "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": [ 1 ], "table_id":1099511677878, "column_id":16, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c1", "expr_level":1, "expr_levels": [ 1 ], "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":1099511677878, "column_id":16, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c1", "expr_level":1, "expr_levels": [ 1 ], "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" } } ], "distinct":false, "rollup":false, "nocycle":false, "from": [ { "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":1, "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 8 *************** select * from t1 where c1t2.c2); { "stmt_type":1, "table": [ { "table_id":1099511677877, "table_name":"t1", "alias_name":"", "synonym_name":"", "table_type":0, "ref_id":1099511677877, "database_name":"subquery_db", "for_update":false, "wait":-1, "mock_id":-1, "view_base_item":-1 } ], "joined_table": [ ], "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":"subquery_db", "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":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":"subquery_db", "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 } } ], "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":"subquery_db", "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 }, "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":"subquery_db", "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":1099511677877, "is_join":false } ], "start_with": [ ], "connect_by": [ ], "where": [ { "item_type":"T_OP_SQ_EQ", "result_type": { "meta": { "type":"TINYINT", "collation":"binary", "coercibility":"NUMERIC" }, "accuracy": { "length":-1, "precision":4, "scale":0 }, "flag":1, "calc_type": { "type":"NULL", "collation":"invalid_type", "coercibility":"INVALID" } }, "expr_info": [ "CNT_COLUMN", "CNT_SUB_QUERY", "IS_WITH_ANY" ], "rel_id": [ 1 ], "expr_levels": [ 0, 1 ], "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":"subquery_db", "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_QUERY", "result_type": { "meta": { "type":"BIGINT", "collation":"binary", "coercibility":"NUMERIC" }, "accuracy": { "length":-1, "precision":-1, "scale":-1 }, "flag":0, "calc_type": { "type":"NULL", "collation":"invalid_type", "coercibility":"INVALID" } }, "expr_info": [ "IS_SUB_QUERY", "CNT_SUB_QUERY" ], "rel_id": [ 1 ], "id":0, "expr_level":0, "expr_levels": [ 0, 1 ], "output_column":1, "is_set":true, "column_types": [ { "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" } } ], "enum_set_values": [ ] } ] } ], "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": [ { "stmt_type":1, "table": [ { "table_id":1099511677878, "table_name":"t2", "alias_name":"", "synonym_name":"", "table_type":0, "ref_id":1099511677878, "database_name":"subquery_db", "for_update":false, "wait":-1, "mock_id":-1, "view_base_item":-1 } ], "joined_table": [ ], "partition_express": [ ], "column": [ { "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": [ 1 ], "table_id":1099511677878, "column_id":17, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c2", "expr_level":1, "expr_levels": [ 1 ], "column_flags":0, "is_explicited_referece":true, "explicited_ref_count":1, "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": [ 1 ], "table_id":1099511677878, "column_id":16, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c1", "expr_level":1, "expr_levels": [ 1 ], "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":1099511677878, "column_id":16, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c1", "expr_level":1, "expr_levels": [ 1 ], "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" } } ], "distinct":false, "rollup":false, "nocycle":false, "from": [ { "table_id":1099511677878, "is_join":false } ], "start_with": [ ], "connect_by": [ ], "where": [ { "item_type":"T_OP_GT", "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" ], "rel_id": [ 1 ], "expr_levels": [ 0, 1 ], "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":"subquery_db", "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": [ 1 ], "table_id":1099511677878, "column_id":17, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c2", "expr_level":1, "expr_levels": [ 1 ], "column_flags":0, "is_explicited_referece":true, "explicited_ref_count":1, "enum_set_values": [ ], "is_lob_column":false } ] } ], "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":1, "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 11 *************** select * from t1 where exists(select c1 from t2 where t1.c2>t2.c2); { "stmt_type":1, "table": [ { "table_id":1099511677877, "table_name":"t1", "alias_name":"", "synonym_name":"", "table_type":0, "ref_id":1099511677877, "database_name":"subquery_db", "for_update":false, "wait":-1, "mock_id":-1, "view_base_item":-1 } ], "joined_table": [ ], "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":"subquery_db", "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":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":"subquery_db", "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 } } ], "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":"subquery_db", "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":"subquery_db", "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":1099511677877, "is_join":false } ], "start_with": [ ], "connect_by": [ ], "where": [ { "item_type":"T_OP_EXISTS", "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": [ "CNT_SUB_QUERY" ], "rel_id": [ 1 ], "expr_levels": [ 0, 1 ], "children": [ { "item_type":"T_REF_QUERY", "result_type": { "meta": { "type":"BIGINT", "collation":"binary", "coercibility":"NUMERIC" }, "accuracy": { "length":-1, "precision":-1, "scale":-1 }, "flag":0, "calc_type": { "type":"NULL", "collation":"invalid_type", "coercibility":"INVALID" } }, "expr_info": [ "IS_SUB_QUERY", "CNT_SUB_QUERY" ], "rel_id": [ 1 ], "id":0, "expr_level":0, "expr_levels": [ 0, 1 ], "output_column":1, "is_set":true, "column_types": [ { "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" } } ], "enum_set_values": [ ] } ] } ], "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": [ { "stmt_type":1, "table": [ { "table_id":1099511677878, "table_name":"t2", "alias_name":"", "synonym_name":"", "table_type":0, "ref_id":1099511677878, "database_name":"subquery_db", "for_update":false, "wait":-1, "mock_id":-1, "view_base_item":-1 } ], "joined_table": [ ], "partition_express": [ ], "column": [ { "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": [ 1 ], "table_id":1099511677878, "column_id":17, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c2", "expr_level":1, "expr_levels": [ 1 ], "column_flags":0, "is_explicited_referece":true, "explicited_ref_count":1, "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": [ 1 ], "table_id":1099511677878, "column_id":16, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c1", "expr_level":1, "expr_levels": [ 1 ], "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":1099511677878, "column_id":16, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c1", "expr_level":1, "expr_levels": [ 1 ], "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" } } ], "distinct":false, "rollup":false, "nocycle":false, "from": [ { "table_id":1099511677878, "is_join":false } ], "start_with": [ ], "connect_by": [ ], "where": [ { "item_type":"T_OP_GT", "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" ], "rel_id": [ 1 ], "expr_levels": [ 0, 1 ], "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":"subquery_db", "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": [ 1 ], "table_id":1099511677878, "column_id":17, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c2", "expr_level":1, "expr_levels": [ 1 ], "column_flags":0, "is_explicited_referece":true, "explicited_ref_count":1, "enum_set_values": [ ], "is_lob_column":false } ] } ], "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":1, "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 12 *************** select * from t1 where 1t2.c1); { "stmt_type":1, "table": [ { "table_id":1099511677877, "table_name":"t1", "alias_name":"", "synonym_name":"", "table_type":0, "ref_id":1099511677877, "database_name":"subquery_db", "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":"subquery_db", "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 } }, { "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":"subquery_db", "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":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":"subquery_db", "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": [ { "item_type":"T_OP_EXISTS", "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": [ "CNT_SUB_QUERY" ], "rel_id": [ 1 ], "expr_levels": [ 0, 1 ], "children": [ { "item_type":"T_REF_QUERY", "result_type": { "meta": { "type":"BIGINT", "collation":"binary", "coercibility":"NUMERIC" }, "accuracy": { "length":-1, "precision":-1, "scale":-1 }, "flag":0, "calc_type": { "type":"NULL", "collation":"invalid_type", "coercibility":"INVALID" } }, "expr_info": [ "IS_SUB_QUERY", "CNT_SUB_QUERY" ], "rel_id": [ 1 ], "id":0, "expr_level":0, "expr_levels": [ 0, 1 ], "output_column":1, "is_set":true, "column_types": [ { "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" } } ], "enum_set_values": [ ] } ] } ], "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": [ { "stmt_type":1, "table": [ { "table_id":1099511677878, "table_name":"t2", "alias_name":"", "synonym_name":"", "table_type":0, "ref_id":1099511677878, "database_name":"subquery_db", "for_update":false, "wait":-1, "mock_id":-1, "view_base_item":-1 } ], "joined_table": [ ], "partition_express": [ ], "column": [ { "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": [ 1 ], "table_id":1099511677878, "column_id":16, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c1", "expr_level":1, "expr_levels": [ 1 ], "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": [ 1 ], "table_id":1099511677878, "column_id":17, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c2", "expr_level":1, "expr_levels": [ 1 ], "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":1099511677878, "column_id":17, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c2", "expr_level":1, "expr_levels": [ 1 ], "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":1099511677878, "is_join":false } ], "start_with": [ ], "connect_by": [ ], "where": [ { "item_type":"T_OP_GT", "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" ], "rel_id": [ 1 ], "expr_levels": [ 0, 1 ], "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":"subquery_db", "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 }, { "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":1099511677878, "column_id":16, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c1", "expr_level":1, "expr_levels": [ 1 ], "column_flags":0, "is_explicited_referece":true, "explicited_ref_count":1, "enum_set_values": [ ], "is_lob_column":false } ] } ], "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":1, "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 14 *************** select * from t1 where c1>(select c1 from t2); { "stmt_type":1, "table": [ { "table_id":1099511677877, "table_name":"t1", "alias_name":"", "synonym_name":"", "table_type":0, "ref_id":1099511677877, "database_name":"subquery_db", "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":"subquery_db", "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":"subquery_db", "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":"subquery_db", "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 }, "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":"subquery_db", "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": [ { "item_type":"T_OP_GT", "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", "CNT_SUB_QUERY", "IS_WITH_SUBQUERY" ], "rel_id": [ 1 ], "expr_levels": [ 0, 1 ], "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":"subquery_db", "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_QUERY", "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_SUB_QUERY", "CNT_SUB_QUERY" ], "rel_id": [ ], "id":0, "expr_level":0, "expr_levels": [ 1 ], "output_column":1, "is_set":false, "column_types": [ { "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" } } ], "enum_set_values": [ ] } ] } ], "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": [ { "stmt_type":1, "table": [ { "table_id":1099511677878, "table_name":"t2", "alias_name":"", "synonym_name":"", "table_type":0, "ref_id":1099511677878, "database_name":"subquery_db", "for_update":false, "wait":-1, "mock_id":-1, "view_base_item":-1 } ], "joined_table": [ ], "partition_express": [ ], "column": [ { "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": [ 1 ], "table_id":1099511677878, "column_id":16, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c1", "expr_level":1, "expr_levels": [ 1 ], "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":1099511677878, "column_id":16, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c1", "expr_level":1, "expr_levels": [ 1 ], "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" } } ], "distinct":false, "rollup":false, "nocycle":false, "from": [ { "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":1, "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 15 *************** select * from t1 where exists(select * from t2 where t1.c1=t2.c2); { "stmt_type":1, "table": [ { "table_id":1099511677877, "table_name":"t1", "alias_name":"", "synonym_name":"", "table_type":0, "ref_id":1099511677877, "database_name":"subquery_db", "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":"subquery_db", "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":"subquery_db", "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":"subquery_db", "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 }, "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":"subquery_db", "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": [ { "item_type":"T_OP_EXISTS", "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": [ "CNT_SUB_QUERY" ], "rel_id": [ 1 ], "expr_levels": [ 0, 1 ], "children": [ { "item_type":"T_REF_QUERY", "result_type": { "meta": { "type":"BIGINT", "collation":"binary", "coercibility":"NUMERIC" }, "accuracy": { "length":-1, "precision":-1, "scale":-1 }, "flag":0, "calc_type": { "type":"NULL", "collation":"invalid_type", "coercibility":"INVALID" } }, "expr_info": [ "IS_SUB_QUERY", "CNT_SUB_QUERY" ], "rel_id": [ 1 ], "id":0, "expr_level":0, "expr_levels": [ 0, 1 ], "output_column":3, "is_set":true, "column_types": [ { "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" } }, { "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" } }, { "meta": { "type":"VARCHAR", "collation":"utf8mb4_general_ci", "coercibility":"IMPLICIT" }, "accuracy": { "length":32, "precision":-1, "scale":-1 }, "flag":0, "calc_type": { "type":"NULL", "collation":"invalid_type", "coercibility":"INVALID" } } ], "enum_set_values": [ ] } ] } ], "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": [ { "stmt_type":1, "table": [ { "table_id":1099511677878, "table_name":"t2", "alias_name":"", "synonym_name":"", "table_type":0, "ref_id":1099511677878, "database_name":"subquery_db", "for_update":false, "wait":-1, "mock_id":-1, "view_base_item":-1 } ], "joined_table": [ ], "partition_express": [ ], "column": [ { "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": [ 1 ], "table_id":1099511677878, "column_id":17, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c2", "expr_level":1, "expr_levels": [ 1 ], "column_flags":0, "is_explicited_referece":true, "explicited_ref_count":2, "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": [ 1 ], "table_id":1099511677878, "column_id":16, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c1", "expr_level":1, "expr_levels": [ 1 ], "column_flags":0, "is_explicited_referece":true, "explicited_ref_count":1, "enum_set_values": [ ], "is_lob_column":false } }, { "column_id":18, "table_id":1099511677878, "column":"c3", "auto_filled_timestamp":false, "default_value": { "NULL":"NULL" }, "base_tid":1099511677878, "base_cid":18, "expression": { "item_type":"T_REF_COLUMN", "result_type": { "meta": { "type":"VARCHAR", "collation":"utf8mb4_general_ci", "coercibility":"IMPLICIT" }, "accuracy": { "length":32, "precision":-1, "scale":-1 }, "flag":0, "calc_type": { "type":"NULL", "collation":"invalid_type", "coercibility":"INVALID" } }, "expr_info": [ "IS_COLUMN", "CNT_COLUMN" ], "rel_id": [ 1 ], "table_id":1099511677878, "column_id":18, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c3", "expr_level":1, "expr_levels": [ 1 ], "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":1099511677878, "column_id":16, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c1", "expr_level":1, "expr_levels": [ 1 ], "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":1099511677878, "column_id":17, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c2", "expr_level":1, "expr_levels": [ 1 ], "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" } }, { "expression": { "item_type":"T_REF_COLUMN", "result_type": { "meta": { "type":"VARCHAR", "collation":"utf8mb4_general_ci", "coercibility":"IMPLICIT" }, "accuracy": { "length":32, "precision":-1, "scale":-1 }, "flag":0, "calc_type": { "type":"NULL", "collation":"invalid_type", "coercibility":"INVALID" } }, "expr_info": [ "IS_COLUMN", "CNT_COLUMN" ], "rel_id": [ 1 ], "table_id":1099511677878, "column_id":18, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c3", "expr_level":1, "expr_levels": [ 1 ], "column_flags":0, "is_explicited_referece":true, "explicited_ref_count":1, "enum_set_values": [ ], "is_lob_column":false }, "is_alias":false, "alias_name":"c3", "expr_name":"c3", "default": { "NULL":"NULL" } } ], "distinct":false, "rollup":false, "nocycle":false, "from": [ { "table_id":1099511677878, "is_join":false } ], "start_with": [ ], "connect_by": [ ], "where": [ { "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 ], "expr_levels": [ 0, 1 ], "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":"subquery_db", "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":0, "calc_type": { "type":"NULL", "collation":"invalid_type", "coercibility":"INVALID" } }, "expr_info": [ "IS_COLUMN", "CNT_COLUMN" ], "rel_id": [ 1 ], "table_id":1099511677878, "column_id":17, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c2", "expr_level":1, "expr_levels": [ 1 ], "column_flags":0, "is_explicited_referece":true, "explicited_ref_count":2, "enum_set_values": [ ], "is_lob_column":false } ] } ], "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":1, "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 16 *************** select * from t1 where c1 in (select c1 from t1); { "stmt_type":1, "table": [ { "table_id":1099511677877, "table_name":"t1", "alias_name":"", "synonym_name":"", "table_type":0, "ref_id":1099511677877, "database_name":"subquery_db", "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":"subquery_db", "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":"subquery_db", "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":"subquery_db", "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 }, "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":"subquery_db", "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": [ { "item_type":"T_OP_SQ_EQ", "result_type": { "meta": { "type":"TINYINT", "collation":"binary", "coercibility":"NUMERIC" }, "accuracy": { "length":-1, "precision":4, "scale":0 }, "flag":1, "calc_type": { "type":"NULL", "collation":"invalid_type", "coercibility":"INVALID" } }, "expr_info": [ "CNT_COLUMN", "CNT_SUB_QUERY", "IS_WITH_ANY" ], "rel_id": [ 1 ], "expr_levels": [ 0, 1 ], "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":"subquery_db", "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_QUERY", "result_type": { "meta": { "type":"BIGINT", "collation":"binary", "coercibility":"NUMERIC" }, "accuracy": { "length":-1, "precision":-1, "scale":-1 }, "flag":0, "calc_type": { "type":"NULL", "collation":"invalid_type", "coercibility":"INVALID" } }, "expr_info": [ "IS_SUB_QUERY", "CNT_SUB_QUERY" ], "rel_id": [ ], "id":0, "expr_level":0, "expr_levels": [ 1 ], "output_column":1, "is_set":true, "column_types": [ { "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" } } ], "enum_set_values": [ ] } ] } ], "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": [ { "stmt_type":1, "table": [ { "table_id":-2, "table_name":"t1", "alias_name":"t1", "synonym_name":"", "table_type":1, "ref_id":1099511677877, "database_name":"subquery_db", "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":"subquery_db", "table_name":"t1", "synonym_name":"", "column_name":"c1", "expr_level":1, "expr_levels": [ 1 ], "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":"subquery_db", "table_name":"t1", "synonym_name":"", "column_name":"c1", "expr_level":1, "expr_levels": [ 1 ], "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" } } ], "distinct":false, "rollup":false, "nocycle":false, "from": [ { "table_id":-2, "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":1, "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 (select * from t1 limit 1) t; { "stmt_type":1, "table": [ { "table_id":-2, "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 } ], "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":"", "table_name":"t", "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":"", "table_name":"t", "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":"", "table_name":"t", "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":-2, "column_id":17, "database_name":"", "table_name":"t", "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":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": [ { "stmt_type":1, "table": [ { "table_id":1099511677877, "table_name":"t1", "alias_name":"", "synonym_name":"", "table_type":0, "ref_id":1099511677877, "database_name":"subquery_db", "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":"subquery_db", "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 } }, { "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":"subquery_db", "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":"subquery_db", "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":"subquery_db", "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": { "item_type":"T_INT", "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", "CNT_CONST" ], "rel_id": [ ], "value": { "BIGINT":1 } }, "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 18 *************** select c1 from t1 where c1 not in (select c1 from t2 where c2 not in (select c2 from t2)); { "stmt_type":1, "table": [ { "table_id":1099511677877, "table_name":"t1", "alias_name":"", "synonym_name":"", "table_type":0, "ref_id":1099511677877, "database_name":"subquery_db", "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":"subquery_db", "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 } } ], "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":"subquery_db", "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 }, "is_alias":false, "alias_name":"c1", "expr_name":"c1", "default": { "NULL":"NULL" } } ], "distinct":false, "rollup":false, "nocycle":false, "from": [ { "table_id":1099511677877, "is_join":false } ], "start_with": [ ], "connect_by": [ ], "where": [ { "item_type":"T_OP_SQ_NE", "result_type": { "meta": { "type":"TINYINT", "collation":"binary", "coercibility":"NUMERIC" }, "accuracy": { "length":-1, "precision":4, "scale":0 }, "flag":1, "calc_type": { "type":"NULL", "collation":"invalid_type", "coercibility":"INVALID" } }, "expr_info": [ "CNT_COLUMN", "CNT_SUB_QUERY", "IS_WITH_ALL" ], "rel_id": [ 1 ], "expr_levels": [ 0, 1, 2 ], "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":"subquery_db", "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_QUERY", "result_type": { "meta": { "type":"BIGINT", "collation":"binary", "coercibility":"NUMERIC" }, "accuracy": { "length":-1, "precision":-1, "scale":-1 }, "flag":0, "calc_type": { "type":"NULL", "collation":"invalid_type", "coercibility":"INVALID" } }, "expr_info": [ "IS_SUB_QUERY", "CNT_SUB_QUERY" ], "rel_id": [ ], "id":0, "expr_level":0, "expr_levels": [ 1, 2 ], "output_column":1, "is_set":true, "column_types": [ { "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" } } ], "enum_set_values": [ ] } ] } ], "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": [ { "stmt_type":1, "table": [ { "table_id":1099511677878, "table_name":"t2", "alias_name":"", "synonym_name":"", "table_type":0, "ref_id":1099511677878, "database_name":"subquery_db", "for_update":false, "wait":-1, "mock_id":-1, "view_base_item":-1 } ], "joined_table": [ ], "partition_express": [ ], "column": [ { "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": [ 1 ], "table_id":1099511677878, "column_id":17, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c2", "expr_level":1, "expr_levels": [ 1 ], "column_flags":0, "is_explicited_referece":true, "explicited_ref_count":1, "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": [ 1 ], "table_id":1099511677878, "column_id":16, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c1", "expr_level":1, "expr_levels": [ 1 ], "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":1099511677878, "column_id":16, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c1", "expr_level":1, "expr_levels": [ 1 ], "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" } } ], "distinct":false, "rollup":false, "nocycle":false, "from": [ { "table_id":1099511677878, "is_join":false } ], "start_with": [ ], "connect_by": [ ], "where": [ { "item_type":"T_OP_SQ_NE", "result_type": { "meta": { "type":"TINYINT", "collation":"binary", "coercibility":"NUMERIC" }, "accuracy": { "length":-1, "precision":4, "scale":0 }, "flag":0, "calc_type": { "type":"NULL", "collation":"invalid_type", "coercibility":"INVALID" } }, "expr_info": [ "CNT_COLUMN", "CNT_SUB_QUERY", "IS_WITH_ALL" ], "rel_id": [ 1 ], "expr_levels": [ 1, 2 ], "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":1099511677878, "column_id":17, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c2", "expr_level":1, "expr_levels": [ 1 ], "column_flags":0, "is_explicited_referece":true, "explicited_ref_count":1, "enum_set_values": [ ], "is_lob_column":false }, { "item_type":"T_REF_QUERY", "result_type": { "meta": { "type":"BIGINT", "collation":"binary", "coercibility":"NUMERIC" }, "accuracy": { "length":-1, "precision":-1, "scale":-1 }, "flag":0, "calc_type": { "type":"NULL", "collation":"invalid_type", "coercibility":"INVALID" } }, "expr_info": [ "IS_SUB_QUERY", "CNT_SUB_QUERY" ], "rel_id": [ ], "id":0, "expr_level":1, "expr_levels": [ 2 ], "output_column":1, "is_set":true, "column_types": [ { "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" } } ], "enum_set_values": [ ] } ] } ], "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":1, "equal_sets": [ ], "pseudo_column_exprs": [ ], "child_stmts": [ { "stmt_type":1, "table": [ { "table_id":-2, "table_name":"t2", "alias_name":"t2", "synonym_name":"", "table_type":1, "ref_id":1099511677878, "database_name":"subquery_db", "for_update":false, "wait":-1, "mock_id":-1, "view_base_item":-1 } ], "joined_table": [ ], "partition_express": [ ], "column": [ { "column_id":17, "table_id":-2, "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": [ 1 ], "table_id":-2, "column_id":17, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c2", "expr_level":2, "expr_levels": [ 2 ], "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":-2, "column_id":17, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c2", "expr_level":2, "expr_levels": [ 2 ], "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":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":2, "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 } ], "has_transformed_for_hierarchical_query":false, "is_hierarchical_query":false } *************** Case 19 *************** select (select c1 from t1) from t1; { "stmt_type":1, "table": [ { "table_id":1099511677877, "table_name":"t1", "alias_name":"", "synonym_name":"", "table_type":0, "ref_id":1099511677877, "database_name":"subquery_db", "for_update":false, "wait":-1, "mock_id":-1, "view_base_item":-1 } ], "joined_table": [ ], "partition_express": [ ], "column": [ ], "select": [ { "expression": { "item_type":"T_REF_QUERY", "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_SUB_QUERY", "CNT_SUB_QUERY" ], "rel_id": [ ], "id":0, "expr_level":0, "expr_levels": [ 1 ], "output_column":1, "is_set":false, "column_types": [ { "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" } } ], "enum_set_values": [ ] }, "is_alias":false, "alias_name":"(select c1 from t1)", "expr_name":"(select c1 from t1)", "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": [ { "stmt_type":1, "table": [ { "table_id":-2, "table_name":"t1", "alias_name":"t1", "synonym_name":"", "table_type":1, "ref_id":1099511677877, "database_name":"subquery_db", "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":"subquery_db", "table_name":"t1", "synonym_name":"", "column_name":"c1", "expr_level":1, "expr_levels": [ 1 ], "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":"subquery_db", "table_name":"t1", "synonym_name":"", "column_name":"c1", "expr_level":1, "expr_levels": [ 1 ], "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" } } ], "distinct":false, "rollup":false, "nocycle":false, "from": [ { "table_id":-2, "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":1, "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 20 *************** select c1 from t1 where c1 in (select c1 from t2 where c2 >= some(select max(c1) from (select c1 from t3 where t1.c2=t3.c1 order by c1 limit 1) as tt)); { "stmt_type":1, "table": [ { 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"is_explicited_referece":true, "explicited_ref_count":1, "enum_set_values": [ ], "is_lob_column":false } }, { "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":"subquery_db", "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 } } ], "select": [ { "expression": { "item_type":"T_REF_COLUMN", "result_type": { 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"table": [ { "table_id":1099511677879, "table_name":"t3", "alias_name":"", "synonym_name":"", "table_type":0, "ref_id":1099511677879, "database_name":"subquery_db", "for_update":false, "wait":-1, "mock_id":-1, "view_base_item":-1 } ], "joined_table": [ ], "partition_express": [ ], "column": [ { "column_id":16, "table_id":1099511677879, "column":"c1", "auto_filled_timestamp":false, "default_value": { "NULL":"NULL" }, "base_tid":1099511677879, "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":0, "calc_type": { "type":"NULL", "collation":"invalid_type", "coercibility":"INVALID" } }, "expr_info": [ "IS_COLUMN", "CNT_COLUMN" ], "rel_id": [ 1 ], "table_id":1099511677879, "column_id":16, "database_name":"subquery_db", "table_name":"t3", "synonym_name":"", "column_name":"c1", "expr_level":2, "expr_levels": [ 2 ], "column_flags":0, "is_explicited_referece":true, "explicited_ref_count":3, "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":1099511677879, "column_id":16, "database_name":"subquery_db", "table_name":"t3", "synonym_name":"", "column_name":"c1", "expr_level":2, "expr_levels": [ 2 ], "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" } } ], "distinct":false, "rollup":false, "nocycle":false, "from": [ { "table_id":1099511677879, "is_join":false } ], "start_with": [ ], "connect_by": [ ], "where": [ { "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 ], "expr_levels": [ 0, 2 ], "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":"subquery_db", "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_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":1099511677879, "column_id":16, "database_name":"subquery_db", "table_name":"t3", "synonym_name":"", "column_name":"c1", "expr_level":2, "expr_levels": [ 2 ], "column_flags":0, "is_explicited_referece":true, "explicited_ref_count":3, "enum_set_values": [ ], "is_lob_column":false } ] } ], "group_by": [ ], "having": [ ], "aggr_func": [ ], "order_by": [ { "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":1099511677879, "column_id":16, "database_name":"subquery_db", "table_name":"t3", "synonym_name":"", "column_name":"c1", "expr_level":2, "expr_levels": [ 2 ], "column_flags":0, "is_explicited_referece":true, "explicited_ref_count":3, "enum_set_values": [ ], "is_lob_column":false }, "ascending":"ASC" } ], "limit": { "item_type":"T_INT", "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", "CNT_CONST" ], "rel_id": [ ], "value": { "BIGINT":1 } }, "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":2, "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 } ], "has_transformed_for_hierarchical_query":false, "is_hierarchical_query":false } ], "has_transformed_for_hierarchical_query":false, "is_hierarchical_query":false } *************** Case 21 *************** select (select c1, c2 from t1) from t1; *************** Case 22 *************** select * from t1 group by (select c1 from t1); { "stmt_type":1, "table": [ { "table_id":1099511677877, "table_name":"t1", "alias_name":"", "synonym_name":"", "table_type":0, "ref_id":1099511677877, "database_name":"subquery_db", "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":"subquery_db", "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 } }, { "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":"subquery_db", "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":"subquery_db", "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":"subquery_db", "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": [ { "item_type":"T_REF_QUERY", "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_SUB_QUERY", "CNT_SUB_QUERY" ], "rel_id": [ ], "id":0, "expr_level":0, "expr_levels": [ 1 ], "output_column":1, "is_set":false, "column_types": [ { "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" } } ], "enum_set_values": [ ] } ], "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": [ { "stmt_type":1, "table": [ { "table_id":-2, "table_name":"t1", "alias_name":"t1", "synonym_name":"", "table_type":1, "ref_id":1099511677877, "database_name":"subquery_db", "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":"subquery_db", "table_name":"t1", "synonym_name":"", "column_name":"c1", "expr_level":1, "expr_levels": [ 1 ], "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":"subquery_db", "table_name":"t1", "synonym_name":"", "column_name":"c1", "expr_level":1, "expr_levels": [ 1 ], "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" } } ], "distinct":false, "rollup":false, "nocycle":false, "from": [ { "table_id":-2, "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":1, "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 23 *************** select * from t1 group by (select c1, c2 from t1); *************** Case 24 *************** select * from t1 where (select c1 from t2) in (1, 2); { "stmt_type":1, "table": [ { "table_id":1099511677877, "table_name":"t1", "alias_name":"", "synonym_name":"", "table_type":0, "ref_id":1099511677877, "database_name":"subquery_db", "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":"subquery_db", "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 } }, { "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":"subquery_db", "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":"subquery_db", "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":"subquery_db", "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": [ { "item_type":"T_OP_IN", "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_IN", "CNT_CONST_EXPR", "CNT_CONST", "CNT_STATIC_PARAM", "CNT_IN", "CNT_SUB_QUERY" ], "rel_id": [ ], "expr_levels": [ 1 ], "children": [ { "item_type":"T_REF_QUERY", "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_SUB_QUERY", "CNT_SUB_QUERY" ], "rel_id": [ ], "id":0, "expr_level":0, "expr_levels": [ 1 ], "output_column":1, "is_set":false, "column_types": [ { "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" } } ], "enum_set_values": [ ] }, { "item_type":"T_OP_ROW", "result_type": { "meta": { "type":"", "collation":"binary", "coercibility":"NUMERIC" }, "accuracy": { "length":-1, "precision":-1, "scale":-1 }, "flag":0, "calc_type": { "type":"NULL", "collation":"invalid_type", "coercibility":"INVALID" } }, "expr_info": [ "IS_CONST_EXPR", "CNT_CONST", "CNT_STATIC_PARAM" ], "rel_id": [ ], "expr_levels": [ ], "children": [ { "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 } }, { "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":1 } } ] } ] } ], "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":2, "fetch_cur_time":true, "calculable_items": [ ] }, "extra_output_exprs": [ ], "current_level":0, "equal_sets": [ ], "pseudo_column_exprs": [ ], "child_stmts": [ { "stmt_type":1, "table": [ { "table_id":1099511677878, "table_name":"t2", "alias_name":"", "synonym_name":"", "table_type":0, "ref_id":1099511677878, "database_name":"subquery_db", "for_update":false, "wait":-1, "mock_id":-1, "view_base_item":-1 } ], "joined_table": [ ], "partition_express": [ ], "column": [ { "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": [ 1 ], "table_id":1099511677878, "column_id":16, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c1", "expr_level":1, "expr_levels": [ 1 ], "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":1099511677878, "column_id":16, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c1", "expr_level":1, "expr_levels": [ 1 ], "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" } } ], "distinct":false, "rollup":false, "nocycle":false, "from": [ { "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":2, "fetch_cur_time":true, "calculable_items": [ ] }, "extra_output_exprs": [ ], "current_level":1, "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 25 *************** select * from t1 where c1=ANY(select c1 from t2 where t1.c2>t2.c2); { "stmt_type":1, "table": [ { "table_id":1099511677877, "table_name":"t1", "alias_name":"", "synonym_name":"", "table_type":0, "ref_id":1099511677877, "database_name":"subquery_db", "for_update":false, "wait":-1, "mock_id":-1, "view_base_item":-1 } ], "joined_table": [ ], "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":"subquery_db", "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":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":"subquery_db", "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 } } ], "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":"subquery_db", "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 }, "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":"subquery_db", "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":1099511677877, "is_join":false } ], "start_with": [ ], "connect_by": [ ], "where": [ { "item_type":"T_OP_SQ_EQ", "result_type": { "meta": { "type":"TINYINT", "collation":"binary", "coercibility":"NUMERIC" }, "accuracy": { "length":-1, "precision":4, "scale":0 }, "flag":1, "calc_type": { "type":"NULL", "collation":"invalid_type", "coercibility":"INVALID" } }, "expr_info": [ "CNT_COLUMN", "CNT_SUB_QUERY", "IS_WITH_ANY" ], "rel_id": [ 1 ], "expr_levels": [ 0, 1 ], "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":"subquery_db", "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_QUERY", "result_type": { "meta": { "type":"BIGINT", "collation":"binary", "coercibility":"NUMERIC" }, "accuracy": { "length":-1, "precision":-1, "scale":-1 }, "flag":0, "calc_type": { "type":"NULL", "collation":"invalid_type", "coercibility":"INVALID" } }, "expr_info": [ "IS_SUB_QUERY", "CNT_SUB_QUERY" ], "rel_id": [ 1 ], "id":0, "expr_level":0, "expr_levels": [ 0, 1 ], "output_column":1, "is_set":true, "column_types": [ { "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" } } ], "enum_set_values": [ ] } ] } ], "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": [ { "stmt_type":1, "table": [ { "table_id":1099511677878, "table_name":"t2", "alias_name":"", "synonym_name":"", "table_type":0, "ref_id":1099511677878, "database_name":"subquery_db", "for_update":false, "wait":-1, "mock_id":-1, "view_base_item":-1 } ], "joined_table": [ ], "partition_express": [ ], "column": [ { "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": [ 1 ], "table_id":1099511677878, "column_id":17, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c2", "expr_level":1, "expr_levels": [ 1 ], "column_flags":0, "is_explicited_referece":true, "explicited_ref_count":1, "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": [ 1 ], "table_id":1099511677878, "column_id":16, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c1", "expr_level":1, "expr_levels": [ 1 ], "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":1099511677878, "column_id":16, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c1", "expr_level":1, "expr_levels": [ 1 ], "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" } } ], "distinct":false, "rollup":false, "nocycle":false, "from": [ { "table_id":1099511677878, "is_join":false } ], "start_with": [ ], "connect_by": [ ], "where": [ { "item_type":"T_OP_GT", "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" ], "rel_id": [ 1 ], "expr_levels": [ 0, 1 ], "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":"subquery_db", "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": [ 1 ], "table_id":1099511677878, "column_id":17, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c2", "expr_level":1, "expr_levels": [ 1 ], "column_flags":0, "is_explicited_referece":true, "explicited_ref_count":1, "enum_set_values": [ ], "is_lob_column":false } ] } ], "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":1, "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 26 *************** select * from t1, (select * from t2) as v where exists(select c2 from t2 where t2.c1 = t1.c1); { "stmt_type":1, "table": [ { "table_id":1099511677877, "table_name":"t1", "alias_name":"", "synonym_name":"", "table_type":0, "ref_id":1099511677877, "database_name":"subquery_db", "for_update":false, "wait":-1, "mock_id":-1, "view_base_item":-1 }, { "table_id":-2, "table_name":"v", "alias_name":"v", "synonym_name":"", "table_type":2, "ref_id":-1, "database_name":"", "for_update":false, "wait":-1, "mock_id":-1, "view_base_item":-1 } 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"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":1, "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 27 *************** (select substr('a',1,1) ) union (select 1); { "set_op":1, "distinct":true, "left_query": { "stmt_type":1, "table": [ ], "joined_table": [ ], "partition_express": [ ], "column": [ ], "select": [ { "expression": { "item_type":"T_QUESTIONMARK", "result_type": { "meta": { "type":"VARCHAR", "collation":"utf8mb4_general_ci", "coercibility":"IMPLICIT" }, "accuracy": { "length":20, "precision":-1, "scale":-1 }, "flag":0, "calc_type": { "type":"NULL", "collation":"invalid_type", "coercibility":"INVALID" } }, "expr_info": [ "IS_CONST", "IS_STATIC_PARAM", "CNT_CONST", "CNT_STATIC_PARAM", "IS_DYNAMIC_PARAM" ], "rel_id": [ ], "value": { "UNKNOWN":0 } }, "is_alias":false, "alias_name":"substr('a',1,1)", "expr_name":"substr('a',1,1)", "default": { "NULL":"NULL" } } ], "distinct":false, "rollup":false, "nocycle":false, "from": [ ], "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":2, "fetch_cur_time":true, "calculable_items": [ { "expression": { "item_type":"T_FUN_SYS_CAST", "result_type": { "meta": { "type":"VARCHAR", "collation":"utf8mb4_general_ci", "coercibility":"IMPLICIT" }, "accuracy": { "length":20, "precision":-1, "scale":-1 }, "flag":0, "calc_type": { "type":"NULL", "collation":"invalid_type", "coercibility":"INVALID" } }, "expr_info": [ "IS_CONST", "IS_FUNC", "IS_CALCULABLE_EXPR", "IS_CONST_EXPR", "CNT_CONST", "CNT_FUNC", "CNT_CALCULABLE_EXPR" ], "rel_id": [ ], "expr_levels": [ ], "func":"cast", "children": [ { "item_type":"T_FUN_SYS_SUBSTR", "result_type": { "meta": { "type":"VARCHAR", "collation":"utf8mb4_general_ci", "coercibility":"COERCIBLE" }, "accuracy": { "length":1, "precision":-1, "scale":-1 }, "flag":0, "calc_type": { "type":"NULL", "collation":"invalid_type", "coercibility":"INVALID" } }, "expr_info": [ "IS_CONST", "IS_FUNC", "IS_CALCULABLE_EXPR", "IS_CONST_EXPR", "CNT_CONST", "CNT_FUNC", "CNT_CALCULABLE_EXPR" ], "rel_id": [ ], "expr_levels": [ ], "func":"substr", "children": [ { "item_type":"T_VARCHAR", "result_type": { "meta": { "type":"VARCHAR", "collation":"utf8mb4_general_ci", "coercibility":"COERCIBLE" }, "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": { "VARCHAR":"a", "collation":"utf8mb4_general_ci" } }, { "item_type":"T_INT", "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", "CNT_CONST" ], "rel_id": [ ], "value": { "BIGINT":1 } }, { "item_type":"T_INT", "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", "CNT_CONST" ], "rel_id": [ ], "value": { "BIGINT":1 } } ], "enum_set_values": [ ] }, { "item_type":"T_INT", "result_type": { "meta": { "type":"BIGINT", "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": { "BIGINT":85902295062 } } ], "enum_set_values": [ ] }, "idx":0 }, { "expression": { "item_type":"T_FUN_SYS_CAST", "result_type": { "meta": { "type":"VARCHAR", "collation":"utf8mb4_general_ci", "coercibility":"IMPLICIT" }, "accuracy": { "length":20, "precision":-1, "scale":-1 }, "flag":0, "calc_type": { "type":"NULL", "collation":"invalid_type", "coercibility":"INVALID" } }, "expr_info": [ "IS_CONST", "IS_FUNC", "IS_CALCULABLE_EXPR", "IS_CONST_EXPR", "CNT_CONST", "CNT_FUNC", "CNT_CALCULABLE_EXPR" ], "rel_id": [ ], "expr_levels": [ ], "func":"cast", "children": [ { "item_type":"T_INT", "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", "CNT_CONST" ], "rel_id": [ ], "value": { "BIGINT":1 } }, { "item_type":"T_INT", "result_type": { "meta": { "type":"BIGINT", "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": { "BIGINT":85902295062 } } ], "enum_set_values": [ ] }, "idx":1 } ] }, "extra_output_exprs": [ ], "current_level":0, "equal_sets": [ ], "pseudo_column_exprs": [ ], "child_stmts": [ ], "has_transformed_for_hierarchical_query":false, "is_hierarchical_query":false }, "right_query": { "stmt_type":1, "table": [ ], "joined_table": [ ], "partition_express": [ ], "column": [ ], "select": [ { "expression": { "item_type":"T_QUESTIONMARK", "result_type": { "meta": { "type":"VARCHAR", "collation":"utf8mb4_general_ci", "coercibility":"IMPLICIT" }, "accuracy": { "length":20, "precision":-1, "scale":-1 }, "flag":0, "calc_type": { "type":"NULL", "collation":"invalid_type", "coercibility":"INVALID" } }, "expr_info": [ "IS_CONST", "IS_STATIC_PARAM", "CNT_CONST", "CNT_STATIC_PARAM", "IS_DYNAMIC_PARAM" ], "rel_id": [ ], "value": { "UNKNOWN":1 } }, "is_alias":false, "alias_name":"1", "expr_name":"1", "default": { "NULL":"NULL" } } ], "distinct":false, "rollup":false, "nocycle":false, "from": [ ], "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":2, "fetch_cur_time":true, "calculable_items": [ { "expression": { "item_type":"T_FUN_SYS_CAST", "result_type": { "meta": { "type":"VARCHAR", "collation":"utf8mb4_general_ci", "coercibility":"IMPLICIT" }, "accuracy": { "length":20, "precision":-1, "scale":-1 }, "flag":0, "calc_type": { "type":"NULL", "collation":"invalid_type", "coercibility":"INVALID" } }, "expr_info": [ "IS_CONST", "IS_FUNC", "IS_CALCULABLE_EXPR", "IS_CONST_EXPR", "CNT_CONST", "CNT_FUNC", "CNT_CALCULABLE_EXPR" ], "rel_id": [ ], "expr_levels": [ ], "func":"cast", "children": [ { "item_type":"T_FUN_SYS_SUBSTR", "result_type": { "meta": { "type":"VARCHAR", "collation":"utf8mb4_general_ci", "coercibility":"COERCIBLE" }, "accuracy": { "length":1, "precision":-1, "scale":-1 }, "flag":0, "calc_type": { "type":"NULL", "collation":"invalid_type", "coercibility":"INVALID" } }, "expr_info": [ "IS_CONST", "IS_FUNC", "IS_CALCULABLE_EXPR", "IS_CONST_EXPR", "CNT_CONST", "CNT_FUNC", "CNT_CALCULABLE_EXPR" ], "rel_id": [ ], "expr_levels": [ ], "func":"substr", "children": [ { "item_type":"T_VARCHAR", "result_type": { "meta": { "type":"VARCHAR", "collation":"utf8mb4_general_ci", "coercibility":"COERCIBLE" }, "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": { "VARCHAR":"a", "collation":"utf8mb4_general_ci" } }, { "item_type":"T_INT", "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", "CNT_CONST" ], "rel_id": [ ], "value": { "BIGINT":1 } }, { "item_type":"T_INT", "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", "CNT_CONST" ], "rel_id": [ ], "value": { "BIGINT":1 } } ], "enum_set_values": [ ] }, { "item_type":"T_INT", "result_type": { "meta": { "type":"BIGINT", "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": { "BIGINT":85902295062 } } ], "enum_set_values": [ ] }, "idx":0 }, { "expression": { "item_type":"T_FUN_SYS_CAST", "result_type": { "meta": { "type":"VARCHAR", "collation":"utf8mb4_general_ci", "coercibility":"IMPLICIT" }, "accuracy": { "length":20, "precision":-1, "scale":-1 }, "flag":0, "calc_type": { "type":"NULL", "collation":"invalid_type", "coercibility":"INVALID" } }, "expr_info": [ "IS_CONST", "IS_FUNC", "IS_CALCULABLE_EXPR", "IS_CONST_EXPR", "CNT_CONST", "CNT_FUNC", "CNT_CALCULABLE_EXPR" ], "rel_id": [ ], "expr_levels": [ ], "func":"cast", "children": [ { "item_type":"T_INT", "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", "CNT_CONST" ], "rel_id": [ ], "value": { "BIGINT":1 } }, { "item_type":"T_INT", "result_type": { "meta": { "type":"BIGINT", "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": { "BIGINT":85902295062 } } ], "enum_set_values": [ ] }, "idx":1 } ] }, "extra_output_exprs": [ ], "current_level":0, "equal_sets": [ ], "pseudo_column_exprs": [ ], "child_stmts": [ ], "has_transformed_for_hierarchical_query":false, "is_hierarchical_query":false }, "order_by": [ ], "limit":null, "select": [ { "expression": { "item_type":"T_OP_UNION", "result_type": { "meta": { "type":"VARCHAR", "collation":"utf8mb4_general_ci", "coercibility":"COERCIBLE" }, "accuracy": { "length":20, "precision":-1, "scale":-1 }, "flag":0, "calc_type": { "type":"NULL", "collation":"invalid_type", "coercibility":"INVALID" } }, "expr_info": [ "IS_SET_OP", "CNT_SET_OP" ], "rel_id": [ ], "expr_level":0, "expr_levels": [ 0 ], "children": [ { "item_type":"T_FUN_SYS_CAST", "result_type": { "meta": { "type":"VARCHAR", "collation":"utf8mb4_general_ci", "coercibility":"IMPLICIT" }, "accuracy": { "length":20, "precision":-1, "scale":-1 }, "flag":0, "calc_type": { "type":"NULL", "collation":"invalid_type", "coercibility":"INVALID" } }, "expr_info": [ "IS_CONST", "IS_FUNC", "IS_CALCULABLE_EXPR", "IS_CONST_EXPR", "CNT_CONST", "CNT_FUNC", "CNT_CALCULABLE_EXPR" ], "rel_id": [ ], "expr_levels": [ ], "func":"cast", "children": [ { "item_type":"T_FUN_SYS_SUBSTR", "result_type": { "meta": { "type":"VARCHAR", "collation":"utf8mb4_general_ci", "coercibility":"COERCIBLE" }, "accuracy": { "length":1, "precision":-1, "scale":-1 }, "flag":0, "calc_type": { "type":"NULL", "collation":"invalid_type", "coercibility":"INVALID" } }, "expr_info": [ "IS_CONST", "IS_FUNC", "IS_CALCULABLE_EXPR", "IS_CONST_EXPR", "CNT_CONST", "CNT_FUNC", "CNT_CALCULABLE_EXPR" ], "rel_id": [ ], "expr_levels": [ ], "func":"substr", "children": [ { "item_type":"T_VARCHAR", "result_type": { "meta": { "type":"VARCHAR", "collation":"utf8mb4_general_ci", "coercibility":"COERCIBLE" }, "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": { "VARCHAR":"a", "collation":"utf8mb4_general_ci" } }, { "item_type":"T_INT", "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", "CNT_CONST" ], "rel_id": [ ], "value": { "BIGINT":1 } }, { "item_type":"T_INT", "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", "CNT_CONST" ], "rel_id": [ ], "value": { "BIGINT":1 } } ], "enum_set_values": [ ] }, { "item_type":"T_INT", "result_type": { "meta": { "type":"BIGINT", "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": { "BIGINT":85902295062 } } ], "enum_set_values": [ ] }, { "item_type":"T_FUN_SYS_CAST", "result_type": { "meta": { "type":"VARCHAR", "collation":"utf8mb4_general_ci", "coercibility":"IMPLICIT" }, "accuracy": { "length":20, "precision":-1, "scale":-1 }, "flag":0, "calc_type": { "type":"NULL", "collation":"invalid_type", "coercibility":"INVALID" } }, "expr_info": [ "IS_CONST", "IS_FUNC", "IS_CALCULABLE_EXPR", "IS_CONST_EXPR", "CNT_CONST", "CNT_FUNC", "CNT_CALCULABLE_EXPR" ], "rel_id": [ ], "expr_levels": [ ], "func":"cast", "children": [ { "item_type":"T_INT", "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", "CNT_CONST" ], "rel_id": [ ], "value": { "BIGINT":1 } }, { "item_type":"T_INT", "result_type": { "meta": { "type":"BIGINT", "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": { "BIGINT":85902295062 } } ], "enum_set_values": [ ] } ] }, "is_alias":true, "alias_name":"substr('a',1,1)", "expr_name":"substr('a',1,1)", "default": { "NULL":"NULL" } } ] } *************** Case 28 *************** select * from (select c1, c2, c2 from t1) tt; *************** Case 29 *************** select c1 from t1 where c1 in (select c1 from t2 where c2 >= some(select c1 from t3 where t1.c2=t3.c1)); { "stmt_type":1, "table": [ { "table_id":1099511677877, "table_name":"t1", "alias_name":"", "synonym_name":"", "table_type":0, "ref_id":1099511677877, "database_name":"subquery_db", "for_update":false, "wait":-1, "mock_id":-1, "view_base_item":-1 } ], "joined_table": [ ], "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":"subquery_db", "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":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":"subquery_db", "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 } } ], "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":"subquery_db", "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 }, "is_alias":false, "alias_name":"c1", "expr_name":"c1", "default": { "NULL":"NULL" } } ], "distinct":false, "rollup":false, "nocycle":false, "from": [ { "table_id":1099511677877, "is_join":false } ], "start_with": [ ], "connect_by": [ ], "where": [ { "item_type":"T_OP_SQ_EQ", "result_type": { "meta": { "type":"TINYINT", "collation":"binary", "coercibility":"NUMERIC" }, "accuracy": { "length":-1, "precision":4, "scale":0 }, "flag":1, "calc_type": { "type":"NULL", "collation":"invalid_type", "coercibility":"INVALID" } }, "expr_info": [ "CNT_COLUMN", "CNT_SUB_QUERY", "IS_WITH_ANY" ], "rel_id": [ 1 ], "expr_levels": [ 0, 1, 2 ], "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":"subquery_db", "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_QUERY", "result_type": { "meta": { "type":"BIGINT", "collation":"binary", "coercibility":"NUMERIC" }, "accuracy": { "length":-1, "precision":-1, "scale":-1 }, "flag":0, "calc_type": { "type":"NULL", "collation":"invalid_type", "coercibility":"INVALID" } }, "expr_info": [ "IS_SUB_QUERY", "CNT_SUB_QUERY" ], "rel_id": [ 1 ], "id":0, "expr_level":0, "expr_levels": [ 0, 1, 2 ], "output_column":1, "is_set":true, "column_types": [ { "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" } } ], "enum_set_values": [ ] } ] } ], "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": [ { "stmt_type":1, "table": [ { "table_id":1099511677878, "table_name":"t2", "alias_name":"", "synonym_name":"", "table_type":0, "ref_id":1099511677878, "database_name":"subquery_db", "for_update":false, "wait":-1, "mock_id":-1, "view_base_item":-1 } ], "joined_table": [ ], "partition_express": [ ], "column": [ { "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": [ 1 ], "table_id":1099511677878, "column_id":17, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c2", "expr_level":1, "expr_levels": [ 1 ], "column_flags":0, "is_explicited_referece":true, "explicited_ref_count":1, "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": [ 1 ], "table_id":1099511677878, "column_id":16, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c1", "expr_level":1, "expr_levels": [ 1 ], "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":1099511677878, "column_id":16, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c1", "expr_level":1, "expr_levels": [ 1 ], "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" } } ], "distinct":false, "rollup":false, "nocycle":false, "from": [ { "table_id":1099511677878, "is_join":false } ], "start_with": [ ], "connect_by": [ ], "where": [ { "item_type":"T_OP_SQ_GE", "result_type": { "meta": { "type":"TINYINT", "collation":"binary", "coercibility":"NUMERIC" }, "accuracy": { "length":-1, "precision":4, "scale":0 }, "flag":0, "calc_type": { "type":"NULL", "collation":"invalid_type", "coercibility":"INVALID" } }, "expr_info": [ "CNT_COLUMN", "CNT_SUB_QUERY", "IS_WITH_ANY" ], "rel_id": [ 1 ], "expr_levels": [ 0, 1, 2 ], "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":1099511677878, "column_id":17, "database_name":"subquery_db", "table_name":"t2", "synonym_name":"", "column_name":"c2", "expr_level":1, "expr_levels": [ 1 ], "column_flags":0, "is_explicited_referece":true, "explicited_ref_count":1, "enum_set_values": [ ], "is_lob_column":false }, { "item_type":"T_REF_QUERY", "result_type": { "meta": { "type":"BIGINT", "collation":"binary", "coercibility":"NUMERIC" }, "accuracy": { "length":-1, "precision":-1, "scale":-1 }, "flag":0, "calc_type": { "type":"NULL", "collation":"invalid_type", "coercibility":"INVALID" } }, "expr_info": [ "IS_SUB_QUERY", "CNT_SUB_QUERY" ], "rel_id": [ ], "id":0, "expr_level":1, "expr_levels": [ 0, 2 ], "output_column":1, "is_set":true, "column_types": [ { "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" } } ], "enum_set_values": [ ] } ] } ], "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":1, "equal_sets": [ ], "pseudo_column_exprs": [ ], "child_stmts": [ { "stmt_type":1, "table": [ { "table_id":1099511677879, "table_name":"t3", "alias_name":"", "synonym_name":"", "table_type":0, "ref_id":1099511677879, "database_name":"subquery_db", "for_update":false, "wait":-1, "mock_id":-1, "view_base_item":-1 } ], "joined_table": [ ], "partition_express": [ ], "column": [ { "column_id":16, "table_id":1099511677879, "column":"c1", "auto_filled_timestamp":false, "default_value": { "NULL":"NULL" }, "base_tid":1099511677879, "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":0, "calc_type": { "type":"NULL", "collation":"invalid_type", "coercibility":"INVALID" } }, "expr_info": [ "IS_COLUMN", "CNT_COLUMN" ], "rel_id": [ 1 ], "table_id":1099511677879, "column_id":16, "database_name":"subquery_db", "table_name":"t3", "synonym_name":"", "column_name":"c1", "expr_level":2, "expr_levels": [ 2 ], "column_flags":0, "is_explicited_referece":true, "explicited_ref_count":2, "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":1099511677879, "column_id":16, "database_name":"subquery_db", "table_name":"t3", "synonym_name":"", "column_name":"c1", "expr_level":2, "expr_levels": [ 2 ], "column_flags":0, "is_explicited_referece":true, "explicited_ref_count":2, "enum_set_values": [ ], "is_lob_column":false }, "is_alias":false, "alias_name":"c1", "expr_name":"c1", "default": { "NULL":"NULL" } } ], "distinct":false, "rollup":false, "nocycle":false, "from": [ { "table_id":1099511677879, "is_join":false } ], "start_with": [ ], "connect_by": [ ], "where": [ { "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 ], "expr_levels": [ 0, 2 ], "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":"subquery_db", "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_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":1099511677879, "column_id":16, "database_name":"subquery_db", "table_name":"t3", "synonym_name":"", "column_name":"c1", "expr_level":2, "expr_levels": [ 2 ], "column_flags":0, "is_explicited_referece":true, "explicited_ref_count":2, "enum_set_values": [ ], "is_lob_column":false } ] } ], "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":2, "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 } ], "has_transformed_for_hierarchical_query":false, "is_hierarchical_query":false } *************** Case 30 *************** drop database subquery_db; { "drop_database_arg":"tenant_id", "database_name":"subquery_db", "if_exist":false, "to_recyclebin":false }