14411 lines
344 KiB
Plaintext
14411 lines
344 KiB
Plaintext
*************** Case 1 ***************
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drop database if exists db_set;
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{
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"drop_database_arg":"tenant_id",
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"database_name":"db_set",
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"if_exist":true,
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"to_recyclebin":false
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}
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*************** Case 2 ***************
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create database db_set;
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{
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"create_database_arg":"database_schema",
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"database_id":-1,
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"schema_version":1,
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"database_name":"db_set",
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"replica_num":0,
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"zone_list": [
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],
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"primary_zone":"",
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"charset_type":2,
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"collation_type":"utf8mb4_general_ci",
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"name_case_mode":-1,
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"comment":"",
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"read_only":false,
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"default_tablegroup_id":-1,
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"default_tablegroup_name":"",
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"in_recyclebin":false,
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"primary_zone_array": [
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]
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}
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*************** Case 3 ***************
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use db_set;
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{
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"stmt_type":97
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}
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*************** Case 4 ***************
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drop table if exists t1,t2;
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{
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"stmt_type":21,
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"drop_table_arg": {
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"tenant_id":1,
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"table_type":3,
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"tables": [
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{
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"database_name":"db_set",
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"table_name":"t1"
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},
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{
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"database_name":"db_set",
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"table_name":"t2"
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}
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],
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"if_exist":true,
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"to_recyclebin":false,
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"session_id":-1,
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"sess_create_time":0
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}
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}
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*************** Case 5 ***************
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CREATE TABLE t1 (pk int primary key, a int not null, b char (10) not null);
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{"ObTableStmt":{"partition_fun_expr":[], "range_values_exprs":[], "list_values_exprs":[], "index_partition_resolve_results":[], "part_type":8}, "stmt_type":20, "create_table_arg":{"if_not_exist":false, "schema":{"simple_table_schema":{"tenant_id":1, "database_id":18446744073709551615, "tablegroup_id":1099511627777, "table_id":18446744073709551615, "table_name":"t1", "replica_num":0, "previous_locality_str":"", "min_partition_id":0, "session_id":0, "index_type":0, "table_type":3, "data_table_id":0, "name_casemode":-1, "schema_version":0, "part_level":0, "part_option":{"part_func_type":0, "part_func_expr":"", "part_num":1, "partition_cnt_within_partition_table":-1, "max_used_part_id":0}, "sub_part_option":{"part_func_type":0, "part_func_expr":"", "part_num":1, "partition_cnt_within_partition_table":-1, "max_used_part_id":-1}, "locality_str":"", "zone_list":[], "primary_zone":"", "part_num":0, "subpart_num":0, "partition_num":1, "subpartition_num":0, "partition_array":[{"BasePartition":{"tenant_id":18446744073709551615, "table_id":18446744073709551615, "part_id":0, "name":"p0", "high_bound_val":, "list_row_values":[], "part_idx":0}, "mapping_pg_part_id":-1}], "subpartition_array":null, "index_status":1, "binding":false, "duplicate_scope":0}, "max_used_column_id":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":"db_set", "last_replay_log_id":0, "foreign_key_arg_list":[], "vertical_partition_arg_list":[]}, "index_arg_list":[]}
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*************** Case 6 ***************
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CREATE TABLE t2 (pk int primary key, a int not null, b char (10) not null);
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{"ObTableStmt":{"partition_fun_expr":[], "range_values_exprs":[], "list_values_exprs":[], "index_partition_resolve_results":[], "part_type":8}, "stmt_type":20, "create_table_arg":{"if_not_exist":false, "schema":{"simple_table_schema":{"tenant_id":1, "database_id":18446744073709551615, "tablegroup_id":1099511627777, "table_id":18446744073709551615, "table_name":"t2", "replica_num":0, "previous_locality_str":"", "min_partition_id":0, "session_id":0, "index_type":0, "table_type":3, "data_table_id":0, "name_casemode":-1, "schema_version":0, "part_level":0, "part_option":{"part_func_type":0, "part_func_expr":"", "part_num":1, "partition_cnt_within_partition_table":-1, "max_used_part_id":0}, "sub_part_option":{"part_func_type":0, "part_func_expr":"", "part_num":1, "partition_cnt_within_partition_table":-1, "max_used_part_id":-1}, "locality_str":"", "zone_list":[], "primary_zone":"", "part_num":0, "subpart_num":0, "partition_num":1, "subpartition_num":0, "partition_array":[{"BasePartition":{"tenant_id":18446744073709551615, "table_id":18446744073709551615, "part_id":0, "name":"p0", "high_bound_val":, "list_row_values":[], "part_idx":0}, "mapping_pg_part_id":-1}], "subpartition_array":null, "index_status":1, "binding":false, "duplicate_scope":0}, "max_used_column_id":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":"db_set", "last_replay_log_id":0, "foreign_key_arg_list":[], "vertical_partition_arg_list":[]}, "index_arg_list":[]}
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*************** Case 7 ***************
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select a,b from t1 union select a,b from t2;
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{
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"set_op":1,
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"distinct":true,
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"left_query": {
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"stmt_type":1,
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"table": [
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{
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"table_id":1099511677877,
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"table_name":"t1",
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"alias_name":"",
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"synonym_name":"",
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"table_type":0,
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"ref_id":1099511677877,
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"database_name":"db_set",
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"for_update":false,
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"wait":-1,
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"mock_id":-1,
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"view_base_item":-1
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}
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],
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"joined_table": [
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],
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"partition_express": [
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],
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"column": [
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{
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"column_id":17,
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"table_id":1099511677877,
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"column":"a",
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"auto_filled_timestamp":false,
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"default_value": {
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"NULL":"NULL"
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},
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"base_tid":1099511677877,
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"base_cid":17,
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"expression": {
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"item_type":"T_REF_COLUMN",
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"result_type": {
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"meta": {
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"type":"INT",
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"collation":"binary",
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"coercibility":"NUMERIC"
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},
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"accuracy": {
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"length":-1,
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"precision":11,
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"scale":0
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},
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"flag":1,
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"calc_type": {
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"type":"NULL",
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"collation":"invalid_type",
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"coercibility":"INVALID"
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}
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},
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"expr_info": [
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"IS_COLUMN",
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"CNT_COLUMN"
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],
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"rel_id": [
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1
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],
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"table_id":1099511677877,
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"column_id":17,
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"database_name":"db_set",
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"table_name":"t1",
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"synonym_name":"",
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"column_name":"a",
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"expr_level":0,
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"expr_levels": [
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0
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],
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"column_flags":0,
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"is_explicited_referece":true,
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"explicited_ref_count":1,
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"enum_set_values": [
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],
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"is_lob_column":false
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}
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},
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{
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"column_id":18,
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"table_id":1099511677877,
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"column":"b",
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"auto_filled_timestamp":false,
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"default_value": {
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"NULL":"NULL"
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},
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"base_tid":1099511677877,
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"base_cid":18,
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"expression": {
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"item_type":"T_REF_COLUMN",
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"result_type": {
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"meta": {
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"type":"CHAR",
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"collation":"utf8mb4_general_ci",
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"coercibility":"IMPLICIT"
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},
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"accuracy": {
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"length":10,
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"precision":-1,
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"scale":-1
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},
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"flag":1,
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"calc_type": {
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"type":"NULL",
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"collation":"invalid_type",
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"coercibility":"INVALID"
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}
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},
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"expr_info": [
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"IS_COLUMN",
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"CNT_COLUMN"
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],
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"rel_id": [
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1
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],
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"table_id":1099511677877,
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"column_id":18,
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"database_name":"db_set",
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"table_name":"t1",
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"synonym_name":"",
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"column_name":"b",
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"expr_level":0,
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"expr_levels": [
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0
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],
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"column_flags":0,
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"is_explicited_referece":true,
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"explicited_ref_count":1,
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"enum_set_values": [
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],
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"is_lob_column":false
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}
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}
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],
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"select": [
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{
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"expression": {
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"item_type":"T_REF_COLUMN",
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"result_type": {
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"meta": {
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"type":"INT",
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"collation":"binary",
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"coercibility":"NUMERIC"
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},
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"accuracy": {
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"length":-1,
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"precision":11,
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"scale":0
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},
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"flag":1,
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"calc_type": {
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"type":"NULL",
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"collation":"invalid_type",
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"coercibility":"INVALID"
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}
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},
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"expr_info": [
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"IS_COLUMN",
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"CNT_COLUMN"
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],
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"rel_id": [
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1
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],
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"table_id":1099511677877,
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"column_id":17,
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"database_name":"db_set",
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"table_name":"t1",
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"synonym_name":"",
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"column_name":"a",
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"expr_level":0,
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"expr_levels": [
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0
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],
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"column_flags":0,
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|
"is_explicited_referece":true,
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|
"explicited_ref_count":1,
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|
"enum_set_values": [
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],
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"is_lob_column":false
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},
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"is_alias":false,
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"alias_name":"a",
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"expr_name":"a",
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"default": {
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"NULL":"NULL"
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}
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},
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{
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"expression": {
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"item_type":"T_REF_COLUMN",
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"result_type": {
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"meta": {
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"type":"CHAR",
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"collation":"utf8mb4_general_ci",
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"coercibility":"IMPLICIT"
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},
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"accuracy": {
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"length":10,
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"precision":-1,
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"scale":-1
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},
|
|
"flag":1,
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"calc_type": {
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"type":"NULL",
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"collation":"invalid_type",
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"coercibility":"INVALID"
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}
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},
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"expr_info": [
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"IS_COLUMN",
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"CNT_COLUMN"
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],
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"rel_id": [
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1
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],
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"table_id":1099511677877,
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"column_id":18,
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"database_name":"db_set",
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"table_name":"t1",
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"synonym_name":"",
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"column_name":"b",
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"expr_level":0,
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"expr_levels": [
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0
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],
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"column_flags":0,
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"is_explicited_referece":true,
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|
"explicited_ref_count":1,
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|
"enum_set_values": [
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],
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|
"is_lob_column":false
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},
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|
"is_alias":false,
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"alias_name":"b",
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"expr_name":"b",
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"default": {
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"NULL":"NULL"
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}
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}
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],
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"distinct":false,
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"rollup":false,
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"nocycle":false,
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"from": [
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{
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"table_id":1099511677877,
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"is_join":false
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}
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],
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|
"start_with": [
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],
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"connect_by": [
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],
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"where": [
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],
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|
"group_by": [
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],
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|
"having": [
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],
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|
"aggr_func": [
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|
],
|
|
"order_by": [
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|
],
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|
"limit":null,
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|
"offset":null,
|
|
"show_stmt_ctx": {
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|
"is_from_show_stmt":false,
|
|
"global_scope":false,
|
|
"tenant_id":-1,
|
|
"show_database_id":-1,
|
|
"show_table_id":-1,
|
|
"grants_user_id":-1
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|
},
|
|
"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": [
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|
],
|
|
"no_hash_hint_ids": [
|
|
],
|
|
"nl_hint_ids": [
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|
],
|
|
"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
|
|
},
|
|
"right_query": {
|
|
"stmt_type":1,
|
|
"table": [
|
|
{
|
|
"table_id":1099511677878,
|
|
"table_name":"t2",
|
|
"alias_name":"",
|
|
"synonym_name":"",
|
|
"table_type":0,
|
|
"ref_id":1099511677878,
|
|
"database_name":"db_set",
|
|
"for_update":false,
|
|
"wait":-1,
|
|
"mock_id":-1,
|
|
"view_base_item":-1
|
|
}
|
|
],
|
|
"joined_table": [
|
|
],
|
|
"partition_express": [
|
|
],
|
|
"column": [
|
|
{
|
|
"column_id":17,
|
|
"table_id":1099511677878,
|
|
"column":"a",
|
|
"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":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":18,
|
|
"table_id":1099511677878,
|
|
"column":"b",
|
|
"auto_filled_timestamp":false,
|
|
"default_value": {
|
|
"NULL":"NULL"
|
|
},
|
|
"base_tid":1099511677878,
|
|
"base_cid":18,
|
|
"expression": {
|
|
"item_type":"T_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":"a",
|
|
"expr_name":"a",
|
|
"default": {
|
|
"NULL":"NULL"
|
|
}
|
|
},
|
|
{
|
|
"expression": {
|
|
"item_type":"T_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":"b",
|
|
"expr_name":"b",
|
|
"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":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":"INT",
|
|
"collation":"binary",
|
|
"coercibility":"NUMERIC"
|
|
},
|
|
"accuracy": {
|
|
"length":-1,
|
|
"precision":11,
|
|
"scale":0
|
|
},
|
|
"flag":1,
|
|
"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_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"INT",
|
|
"collation":"binary",
|
|
"coercibility":"NUMERIC"
|
|
},
|
|
"accuracy": {
|
|
"length":-1,
|
|
"precision":11,
|
|
"scale":0
|
|
},
|
|
"flag":1,
|
|
"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":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":true,
|
|
"alias_name":"a",
|
|
"expr_name":"a",
|
|
"default": {
|
|
"NULL":"NULL"
|
|
}
|
|
},
|
|
{
|
|
"expression": {
|
|
"item_type":"T_OP_UNION",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"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_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"calc_type": {
|
|
"type":"NULL",
|
|
"collation":"invalid_type",
|
|
"coercibility":"INVALID"
|
|
}
|
|
},
|
|
"expr_info": [
|
|
"IS_COLUMN",
|
|
"CNT_COLUMN"
|
|
],
|
|
"rel_id": [
|
|
1
|
|
],
|
|
"table_id":1099511677877,
|
|
"column_id":18,
|
|
"database_name":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":true,
|
|
"alias_name":"b",
|
|
"expr_name":"b",
|
|
"default": {
|
|
"NULL":"NULL"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
*************** Case 8 ***************
|
|
select a,b from t1 union distinct select a,b from t2;
|
|
{
|
|
"set_op":1,
|
|
"distinct":true,
|
|
"left_query": {
|
|
"stmt_type":1,
|
|
"table": [
|
|
{
|
|
"table_id":1099511677877,
|
|
"table_name":"t1",
|
|
"alias_name":"",
|
|
"synonym_name":"",
|
|
"table_type":0,
|
|
"ref_id":1099511677877,
|
|
"database_name":"db_set",
|
|
"for_update":false,
|
|
"wait":-1,
|
|
"mock_id":-1,
|
|
"view_base_item":-1
|
|
}
|
|
],
|
|
"joined_table": [
|
|
],
|
|
"partition_express": [
|
|
],
|
|
"column": [
|
|
{
|
|
"column_id":17,
|
|
"table_id":1099511677877,
|
|
"column":"a",
|
|
"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":1,
|
|
"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":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
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|
|
"scale":0
|
|
},
|
|
"flag":1,
|
|
"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_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"INT",
|
|
"collation":"binary",
|
|
"coercibility":"NUMERIC"
|
|
},
|
|
"accuracy": {
|
|
"length":-1,
|
|
"precision":11,
|
|
"scale":0
|
|
},
|
|
"flag":1,
|
|
"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":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":true,
|
|
"alias_name":"a",
|
|
"expr_name":"a",
|
|
"default": {
|
|
"NULL":"NULL"
|
|
}
|
|
},
|
|
{
|
|
"expression": {
|
|
"item_type":"T_OP_UNION",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"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_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"calc_type": {
|
|
"type":"NULL",
|
|
"collation":"invalid_type",
|
|
"coercibility":"INVALID"
|
|
}
|
|
},
|
|
"expr_info": [
|
|
"IS_COLUMN",
|
|
"CNT_COLUMN"
|
|
],
|
|
"rel_id": [
|
|
1
|
|
],
|
|
"table_id":1099511677877,
|
|
"column_id":18,
|
|
"database_name":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":true,
|
|
"alias_name":"b",
|
|
"expr_name":"b",
|
|
"default": {
|
|
"NULL":"NULL"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
*************** Case 9 ***************
|
|
select a,b from t1 union all select a,b from t2;
|
|
{
|
|
"set_op":1,
|
|
"distinct":false,
|
|
"left_query": {
|
|
"stmt_type":1,
|
|
"table": [
|
|
{
|
|
"table_id":1099511677877,
|
|
"table_name":"t1",
|
|
"alias_name":"",
|
|
"synonym_name":"",
|
|
"table_type":0,
|
|
"ref_id":1099511677877,
|
|
"database_name":"db_set",
|
|
"for_update":false,
|
|
"wait":-1,
|
|
"mock_id":-1,
|
|
"view_base_item":-1
|
|
}
|
|
],
|
|
"joined_table": [
|
|
],
|
|
"partition_express": [
|
|
],
|
|
"column": [
|
|
{
|
|
"column_id":17,
|
|
"table_id":1099511677877,
|
|
"column":"a",
|
|
"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":1,
|
|
"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":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":18,
|
|
"table_id":1099511677877,
|
|
"column":"b",
|
|
"auto_filled_timestamp":false,
|
|
"default_value": {
|
|
"NULL":"NULL"
|
|
},
|
|
"base_tid":1099511677877,
|
|
"base_cid":18,
|
|
"expression": {
|
|
"item_type":"T_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"calc_type": {
|
|
"type":"NULL",
|
|
"collation":"invalid_type",
|
|
"coercibility":"INVALID"
|
|
}
|
|
},
|
|
"expr_info": [
|
|
"IS_COLUMN",
|
|
"CNT_COLUMN"
|
|
],
|
|
"rel_id": [
|
|
1
|
|
],
|
|
"table_id":1099511677877,
|
|
"column_id":18,
|
|
"database_name":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":1,
|
|
"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":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":"a",
|
|
"expr_name":"a",
|
|
"default": {
|
|
"NULL":"NULL"
|
|
}
|
|
},
|
|
{
|
|
"expression": {
|
|
"item_type":"T_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"calc_type": {
|
|
"type":"NULL",
|
|
"collation":"invalid_type",
|
|
"coercibility":"INVALID"
|
|
}
|
|
},
|
|
"expr_info": [
|
|
"IS_COLUMN",
|
|
"CNT_COLUMN"
|
|
],
|
|
"rel_id": [
|
|
1
|
|
],
|
|
"table_id":1099511677877,
|
|
"column_id":18,
|
|
"database_name":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":"b",
|
|
"expr_name":"b",
|
|
"default": {
|
|
"NULL":"NULL"
|
|
}
|
|
}
|
|
],
|
|
"distinct":false,
|
|
"rollup":false,
|
|
"nocycle":false,
|
|
"from": [
|
|
{
|
|
"table_id":1099511677877,
|
|
"is_join":false
|
|
}
|
|
],
|
|
"start_with": [
|
|
],
|
|
"connect_by": [
|
|
],
|
|
"where": [
|
|
],
|
|
"group_by": [
|
|
],
|
|
"having": [
|
|
],
|
|
"aggr_func": [
|
|
],
|
|
"order_by": [
|
|
],
|
|
"limit":null,
|
|
"offset":null,
|
|
"show_stmt_ctx": {
|
|
"is_from_show_stmt":false,
|
|
"global_scope":false,
|
|
"tenant_id":-1,
|
|
"show_database_id":-1,
|
|
"show_table_id":-1,
|
|
"grants_user_id":-1
|
|
},
|
|
"hint": {
|
|
"read_static":false,
|
|
"no_rewrite":false,
|
|
"frozen_version":-1,
|
|
"topk_precision":-1,
|
|
"sharding_minimum_row_count":0,
|
|
"query_timeout":-1,
|
|
"hotspot":false,
|
|
"index": [
|
|
],
|
|
"read_consistency":-1,
|
|
"join_ordered":false,
|
|
"join_order": [
|
|
],
|
|
"merge_hint_ids": [
|
|
],
|
|
"hash_hint_ids": [
|
|
],
|
|
"no_hash_hint_ids": [
|
|
],
|
|
"nl_hint_ids": [
|
|
],
|
|
"part_hints": [
|
|
],
|
|
"use_late_materialization":-1,
|
|
"log_level":"",
|
|
"max_concurrent":-1,
|
|
"only_concurrent_hint":false,
|
|
"has_hint_exclude_concurrent":false,
|
|
"parallel":-1,
|
|
"use_px":2,
|
|
"use join filter":false,
|
|
"org_pq_distributes": [
|
|
],
|
|
"pq_distributes": [
|
|
]
|
|
},
|
|
"query_context": {
|
|
"param_num":0,
|
|
"fetch_cur_time":true,
|
|
"calculable_items": [
|
|
]
|
|
},
|
|
"extra_output_exprs": [
|
|
],
|
|
"current_level":0,
|
|
"equal_sets": [
|
|
],
|
|
"pseudo_column_exprs": [
|
|
],
|
|
"child_stmts": [
|
|
],
|
|
"has_transformed_for_hierarchical_query":false,
|
|
"is_hierarchical_query":false
|
|
},
|
|
"right_query": {
|
|
"stmt_type":1,
|
|
"table": [
|
|
{
|
|
"table_id":1099511677878,
|
|
"table_name":"t2",
|
|
"alias_name":"",
|
|
"synonym_name":"",
|
|
"table_type":0,
|
|
"ref_id":1099511677878,
|
|
"database_name":"db_set",
|
|
"for_update":false,
|
|
"wait":-1,
|
|
"mock_id":-1,
|
|
"view_base_item":-1
|
|
}
|
|
],
|
|
"joined_table": [
|
|
],
|
|
"partition_express": [
|
|
],
|
|
"column": [
|
|
{
|
|
"column_id":17,
|
|
"table_id":1099511677878,
|
|
"column":"a",
|
|
"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":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":18,
|
|
"table_id":1099511677878,
|
|
"column":"b",
|
|
"auto_filled_timestamp":false,
|
|
"default_value": {
|
|
"NULL":"NULL"
|
|
},
|
|
"base_tid":1099511677878,
|
|
"base_cid":18,
|
|
"expression": {
|
|
"item_type":"T_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":"a",
|
|
"expr_name":"a",
|
|
"default": {
|
|
"NULL":"NULL"
|
|
}
|
|
},
|
|
{
|
|
"expression": {
|
|
"item_type":"T_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":"b",
|
|
"expr_name":"b",
|
|
"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":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":"INT",
|
|
"collation":"binary",
|
|
"coercibility":"NUMERIC"
|
|
},
|
|
"accuracy": {
|
|
"length":-1,
|
|
"precision":11,
|
|
"scale":0
|
|
},
|
|
"flag":1,
|
|
"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_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"INT",
|
|
"collation":"binary",
|
|
"coercibility":"NUMERIC"
|
|
},
|
|
"accuracy": {
|
|
"length":-1,
|
|
"precision":11,
|
|
"scale":0
|
|
},
|
|
"flag":1,
|
|
"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":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":true,
|
|
"alias_name":"a",
|
|
"expr_name":"a",
|
|
"default": {
|
|
"NULL":"NULL"
|
|
}
|
|
},
|
|
{
|
|
"expression": {
|
|
"item_type":"T_OP_UNION",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"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_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"calc_type": {
|
|
"type":"NULL",
|
|
"collation":"invalid_type",
|
|
"coercibility":"INVALID"
|
|
}
|
|
},
|
|
"expr_info": [
|
|
"IS_COLUMN",
|
|
"CNT_COLUMN"
|
|
],
|
|
"rel_id": [
|
|
1
|
|
],
|
|
"table_id":1099511677877,
|
|
"column_id":18,
|
|
"database_name":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":true,
|
|
"alias_name":"b",
|
|
"expr_name":"b",
|
|
"default": {
|
|
"NULL":"NULL"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
*************** Case 10 ***************
|
|
select a,b from t1 union all select a,b from t2 order by b;
|
|
{
|
|
"set_op":1,
|
|
"distinct":false,
|
|
"left_query": {
|
|
"stmt_type":1,
|
|
"table": [
|
|
{
|
|
"table_id":1099511677877,
|
|
"table_name":"t1",
|
|
"alias_name":"",
|
|
"synonym_name":"",
|
|
"table_type":0,
|
|
"ref_id":1099511677877,
|
|
"database_name":"db_set",
|
|
"for_update":false,
|
|
"wait":-1,
|
|
"mock_id":-1,
|
|
"view_base_item":-1
|
|
}
|
|
],
|
|
"joined_table": [
|
|
],
|
|
"partition_express": [
|
|
],
|
|
"column": [
|
|
{
|
|
"column_id":17,
|
|
"table_id":1099511677877,
|
|
"column":"a",
|
|
"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"
|
|
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"equal_sets": [
|
|
],
|
|
"pseudo_column_exprs": [
|
|
],
|
|
"child_stmts": [
|
|
],
|
|
"has_transformed_for_hierarchical_query":false,
|
|
"is_hierarchical_query":false
|
|
},
|
|
"order_by": [
|
|
{
|
|
"expression": {
|
|
"item_type":"T_OP_UNION",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"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_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"calc_type": {
|
|
"type":"NULL",
|
|
"collation":"invalid_type",
|
|
"coercibility":"INVALID"
|
|
}
|
|
},
|
|
"expr_info": [
|
|
"IS_COLUMN",
|
|
"CNT_COLUMN"
|
|
],
|
|
"rel_id": [
|
|
1
|
|
],
|
|
"table_id":1099511677877,
|
|
"column_id":18,
|
|
"database_name":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"expr_level":0,
|
|
"expr_levels": [
|
|
0
|
|
],
|
|
"column_flags":0,
|
|
"is_explicited_referece":true,
|
|
"explicited_ref_count":2,
|
|
"enum_set_values": [
|
|
],
|
|
"is_lob_column":false
|
|
}
|
|
]
|
|
},
|
|
"ascending":"ASC"
|
|
}
|
|
],
|
|
"limit":null,
|
|
"select": [
|
|
{
|
|
"expression": {
|
|
"item_type":"T_OP_UNION",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"INT",
|
|
"collation":"binary",
|
|
"coercibility":"NUMERIC"
|
|
},
|
|
"accuracy": {
|
|
"length":-1,
|
|
"precision":11,
|
|
"scale":0
|
|
},
|
|
"flag":1,
|
|
"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_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"INT",
|
|
"collation":"binary",
|
|
"coercibility":"NUMERIC"
|
|
},
|
|
"accuracy": {
|
|
"length":-1,
|
|
"precision":11,
|
|
"scale":0
|
|
},
|
|
"flag":1,
|
|
"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":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":true,
|
|
"alias_name":"a",
|
|
"expr_name":"a",
|
|
"default": {
|
|
"NULL":"NULL"
|
|
}
|
|
},
|
|
{
|
|
"expression": {
|
|
"item_type":"T_OP_UNION",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"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_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"calc_type": {
|
|
"type":"NULL",
|
|
"collation":"invalid_type",
|
|
"coercibility":"INVALID"
|
|
}
|
|
},
|
|
"expr_info": [
|
|
"IS_COLUMN",
|
|
"CNT_COLUMN"
|
|
],
|
|
"rel_id": [
|
|
1
|
|
],
|
|
"table_id":1099511677877,
|
|
"column_id":18,
|
|
"database_name":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":true,
|
|
"alias_name":"b",
|
|
"expr_name":"b",
|
|
"default": {
|
|
"NULL":"NULL"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
*************** Case 11 ***************
|
|
select a,b from t1 limit 1 union select a,b from t2;
|
|
{
|
|
"set_op":1,
|
|
"distinct":true,
|
|
"left_query": {
|
|
"stmt_type":1,
|
|
"table": [
|
|
{
|
|
"table_id":1099511677877,
|
|
"table_name":"t1",
|
|
"alias_name":"",
|
|
"synonym_name":"",
|
|
"table_type":0,
|
|
"ref_id":1099511677877,
|
|
"database_name":"db_set",
|
|
"for_update":false,
|
|
"wait":-1,
|
|
"mock_id":-1,
|
|
"view_base_item":-1
|
|
}
|
|
],
|
|
"joined_table": [
|
|
],
|
|
"partition_express": [
|
|
],
|
|
"column": [
|
|
{
|
|
"column_id":17,
|
|
"table_id":1099511677877,
|
|
"column":"a",
|
|
"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":1,
|
|
"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":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":18,
|
|
"table_id":1099511677877,
|
|
"column":"b",
|
|
"auto_filled_timestamp":false,
|
|
"default_value": {
|
|
"NULL":"NULL"
|
|
},
|
|
"base_tid":1099511677877,
|
|
"base_cid":18,
|
|
"expression": {
|
|
"item_type":"T_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"calc_type": {
|
|
"type":"NULL",
|
|
"collation":"invalid_type",
|
|
"coercibility":"INVALID"
|
|
}
|
|
},
|
|
"expr_info": [
|
|
"IS_COLUMN",
|
|
"CNT_COLUMN"
|
|
],
|
|
"rel_id": [
|
|
1
|
|
],
|
|
"table_id":1099511677877,
|
|
"column_id":18,
|
|
"database_name":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":1,
|
|
"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":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":"a",
|
|
"expr_name":"a",
|
|
"default": {
|
|
"NULL":"NULL"
|
|
}
|
|
},
|
|
{
|
|
"expression": {
|
|
"item_type":"T_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"calc_type": {
|
|
"type":"NULL",
|
|
"collation":"invalid_type",
|
|
"coercibility":"INVALID"
|
|
}
|
|
},
|
|
"expr_info": [
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|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"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_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"calc_type": {
|
|
"type":"NULL",
|
|
"collation":"invalid_type",
|
|
"coercibility":"INVALID"
|
|
}
|
|
},
|
|
"expr_info": [
|
|
"IS_COLUMN",
|
|
"CNT_COLUMN"
|
|
],
|
|
"rel_id": [
|
|
1
|
|
],
|
|
"table_id":1099511677877,
|
|
"column_id":18,
|
|
"database_name":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":true,
|
|
"alias_name":"b",
|
|
"expr_name":"b",
|
|
"default": {
|
|
"NULL":"NULL"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
*************** Case 12 ***************
|
|
select a,b from t1 union select a,b from t2 limit 1;
|
|
{
|
|
"set_op":1,
|
|
"distinct":true,
|
|
"left_query": {
|
|
"stmt_type":1,
|
|
"table": [
|
|
{
|
|
"table_id":1099511677877,
|
|
"table_name":"t1",
|
|
"alias_name":"",
|
|
"synonym_name":"",
|
|
"table_type":0,
|
|
"ref_id":1099511677877,
|
|
"database_name":"db_set",
|
|
"for_update":false,
|
|
"wait":-1,
|
|
"mock_id":-1,
|
|
"view_base_item":-1
|
|
}
|
|
],
|
|
"joined_table": [
|
|
],
|
|
"partition_express": [
|
|
],
|
|
"column": [
|
|
{
|
|
"column_id":17,
|
|
"table_id":1099511677877,
|
|
"column":"a",
|
|
"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":1,
|
|
"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":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":18,
|
|
"table_id":1099511677877,
|
|
"column":"b",
|
|
"auto_filled_timestamp":false,
|
|
"default_value": {
|
|
"NULL":"NULL"
|
|
},
|
|
"base_tid":1099511677877,
|
|
"base_cid":18,
|
|
"expression": {
|
|
"item_type":"T_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"calc_type": {
|
|
"type":"NULL",
|
|
"collation":"invalid_type",
|
|
"coercibility":"INVALID"
|
|
}
|
|
},
|
|
"expr_info": [
|
|
"IS_COLUMN",
|
|
"CNT_COLUMN"
|
|
],
|
|
"rel_id": [
|
|
1
|
|
],
|
|
"table_id":1099511677877,
|
|
"column_id":18,
|
|
"database_name":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":1,
|
|
"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":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":"a",
|
|
"expr_name":"a",
|
|
"default": {
|
|
"NULL":"NULL"
|
|
}
|
|
},
|
|
{
|
|
"expression": {
|
|
"item_type":"T_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"calc_type": {
|
|
"type":"NULL",
|
|
"collation":"invalid_type",
|
|
"coercibility":"INVALID"
|
|
}
|
|
},
|
|
"expr_info": [
|
|
"IS_COLUMN",
|
|
"CNT_COLUMN"
|
|
],
|
|
"rel_id": [
|
|
1
|
|
],
|
|
"table_id":1099511677877,
|
|
"column_id":18,
|
|
"database_name":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":"b",
|
|
"expr_name":"b",
|
|
"default": {
|
|
"NULL":"NULL"
|
|
}
|
|
}
|
|
],
|
|
"distinct":false,
|
|
"rollup":false,
|
|
"nocycle":false,
|
|
"from": [
|
|
{
|
|
"table_id":1099511677877,
|
|
"is_join":false
|
|
}
|
|
],
|
|
"start_with": [
|
|
],
|
|
"connect_by": [
|
|
],
|
|
"where": [
|
|
],
|
|
"group_by": [
|
|
],
|
|
"having": [
|
|
],
|
|
"aggr_func": [
|
|
],
|
|
"order_by": [
|
|
],
|
|
"limit":null,
|
|
"offset":null,
|
|
"show_stmt_ctx": {
|
|
"is_from_show_stmt":false,
|
|
"global_scope":false,
|
|
"tenant_id":-1,
|
|
"show_database_id":-1,
|
|
"show_table_id":-1,
|
|
"grants_user_id":-1
|
|
},
|
|
"hint": {
|
|
"read_static":false,
|
|
"no_rewrite":false,
|
|
"frozen_version":-1,
|
|
"topk_precision":-1,
|
|
"sharding_minimum_row_count":0,
|
|
"query_timeout":-1,
|
|
"hotspot":false,
|
|
"index": [
|
|
],
|
|
"read_consistency":-1,
|
|
"join_ordered":false,
|
|
"join_order": [
|
|
],
|
|
"merge_hint_ids": [
|
|
],
|
|
"hash_hint_ids": [
|
|
],
|
|
"no_hash_hint_ids": [
|
|
],
|
|
"nl_hint_ids": [
|
|
],
|
|
"part_hints": [
|
|
],
|
|
"use_late_materialization":-1,
|
|
"log_level":"",
|
|
"max_concurrent":-1,
|
|
"only_concurrent_hint":false,
|
|
"has_hint_exclude_concurrent":false,
|
|
"parallel":-1,
|
|
"use_px":2,
|
|
"use join filter":false,
|
|
"org_pq_distributes": [
|
|
],
|
|
"pq_distributes": [
|
|
]
|
|
},
|
|
"query_context": {
|
|
"param_num":0,
|
|
"fetch_cur_time":true,
|
|
"calculable_items": [
|
|
]
|
|
},
|
|
"extra_output_exprs": [
|
|
],
|
|
"current_level":0,
|
|
"equal_sets": [
|
|
],
|
|
"pseudo_column_exprs": [
|
|
],
|
|
"child_stmts": [
|
|
],
|
|
"has_transformed_for_hierarchical_query":false,
|
|
"is_hierarchical_query":false
|
|
},
|
|
"right_query": {
|
|
"stmt_type":1,
|
|
"table": [
|
|
{
|
|
"table_id":1099511677878,
|
|
"table_name":"t2",
|
|
"alias_name":"",
|
|
"synonym_name":"",
|
|
"table_type":0,
|
|
"ref_id":1099511677878,
|
|
"database_name":"db_set",
|
|
"for_update":false,
|
|
"wait":-1,
|
|
"mock_id":-1,
|
|
"view_base_item":-1
|
|
}
|
|
],
|
|
"joined_table": [
|
|
],
|
|
"partition_express": [
|
|
],
|
|
"column": [
|
|
{
|
|
"column_id":17,
|
|
"table_id":1099511677878,
|
|
"column":"a",
|
|
"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":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":18,
|
|
"table_id":1099511677878,
|
|
"column":"b",
|
|
"auto_filled_timestamp":false,
|
|
"default_value": {
|
|
"NULL":"NULL"
|
|
},
|
|
"base_tid":1099511677878,
|
|
"base_cid":18,
|
|
"expression": {
|
|
"item_type":"T_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":"a",
|
|
"expr_name":"a",
|
|
"default": {
|
|
"NULL":"NULL"
|
|
}
|
|
},
|
|
{
|
|
"expression": {
|
|
"item_type":"T_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":"b",
|
|
"expr_name":"b",
|
|
"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":0,
|
|
"equal_sets": [
|
|
],
|
|
"pseudo_column_exprs": [
|
|
],
|
|
"child_stmts": [
|
|
],
|
|
"has_transformed_for_hierarchical_query":false,
|
|
"is_hierarchical_query":false
|
|
},
|
|
"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
|
|
}
|
|
},
|
|
"select": [
|
|
{
|
|
"expression": {
|
|
"item_type":"T_OP_UNION",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"INT",
|
|
"collation":"binary",
|
|
"coercibility":"NUMERIC"
|
|
},
|
|
"accuracy": {
|
|
"length":-1,
|
|
"precision":11,
|
|
"scale":0
|
|
},
|
|
"flag":1,
|
|
"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_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"INT",
|
|
"collation":"binary",
|
|
"coercibility":"NUMERIC"
|
|
},
|
|
"accuracy": {
|
|
"length":-1,
|
|
"precision":11,
|
|
"scale":0
|
|
},
|
|
"flag":1,
|
|
"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":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":true,
|
|
"alias_name":"a",
|
|
"expr_name":"a",
|
|
"default": {
|
|
"NULL":"NULL"
|
|
}
|
|
},
|
|
{
|
|
"expression": {
|
|
"item_type":"T_OP_UNION",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"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_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"calc_type": {
|
|
"type":"NULL",
|
|
"collation":"invalid_type",
|
|
"coercibility":"INVALID"
|
|
}
|
|
},
|
|
"expr_info": [
|
|
"IS_COLUMN",
|
|
"CNT_COLUMN"
|
|
],
|
|
"rel_id": [
|
|
1
|
|
],
|
|
"table_id":1099511677877,
|
|
"column_id":18,
|
|
"database_name":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":true,
|
|
"alias_name":"b",
|
|
"expr_name":"b",
|
|
"default": {
|
|
"NULL":"NULL"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
*************** Case 13 ***************
|
|
select a,b from t1 limit 1 union select a,b from t2 limit 1;
|
|
{
|
|
"set_op":1,
|
|
"distinct":true,
|
|
"left_query": {
|
|
"stmt_type":1,
|
|
"table": [
|
|
{
|
|
"table_id":1099511677877,
|
|
"table_name":"t1",
|
|
"alias_name":"",
|
|
"synonym_name":"",
|
|
"table_type":0,
|
|
"ref_id":1099511677877,
|
|
"database_name":"db_set",
|
|
"for_update":false,
|
|
"wait":-1,
|
|
"mock_id":-1,
|
|
"view_base_item":-1
|
|
}
|
|
],
|
|
"joined_table": [
|
|
],
|
|
"partition_express": [
|
|
],
|
|
"column": [
|
|
{
|
|
"column_id":17,
|
|
"table_id":1099511677877,
|
|
"column":"a",
|
|
"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":1,
|
|
"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":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":18,
|
|
"table_id":1099511677877,
|
|
"column":"b",
|
|
"auto_filled_timestamp":false,
|
|
"default_value": {
|
|
"NULL":"NULL"
|
|
},
|
|
"base_tid":1099511677877,
|
|
"base_cid":18,
|
|
"expression": {
|
|
"item_type":"T_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"calc_type": {
|
|
"type":"NULL",
|
|
"collation":"invalid_type",
|
|
"coercibility":"INVALID"
|
|
}
|
|
},
|
|
"expr_info": [
|
|
"IS_COLUMN",
|
|
"CNT_COLUMN"
|
|
],
|
|
"rel_id": [
|
|
1
|
|
],
|
|
"table_id":1099511677877,
|
|
"column_id":18,
|
|
"database_name":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"expr_level":0,
|
|
"expr_levels": [
|
|
0
|
|
],
|
|
"column_flags":0,
|
|
"is_explicited_referece":true,
|
|
"explicited_ref_count":1,
|
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"CNT_SET_OP"
|
|
],
|
|
"rel_id": [
|
|
],
|
|
"expr_level":0,
|
|
"expr_levels": [
|
|
0
|
|
],
|
|
"children": [
|
|
{
|
|
"item_type":"T_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"INT",
|
|
"collation":"binary",
|
|
"coercibility":"NUMERIC"
|
|
},
|
|
"accuracy": {
|
|
"length":-1,
|
|
"precision":11,
|
|
"scale":0
|
|
},
|
|
"flag":1,
|
|
"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":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":true,
|
|
"alias_name":"a",
|
|
"expr_name":"a",
|
|
"default": {
|
|
"NULL":"NULL"
|
|
}
|
|
},
|
|
{
|
|
"expression": {
|
|
"item_type":"T_OP_UNION",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"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_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"calc_type": {
|
|
"type":"NULL",
|
|
"collation":"invalid_type",
|
|
"coercibility":"INVALID"
|
|
}
|
|
},
|
|
"expr_info": [
|
|
"IS_COLUMN",
|
|
"CNT_COLUMN"
|
|
],
|
|
"rel_id": [
|
|
1
|
|
],
|
|
"table_id":1099511677877,
|
|
"column_id":18,
|
|
"database_name":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":true,
|
|
"alias_name":"b",
|
|
"expr_name":"b",
|
|
"default": {
|
|
"NULL":"NULL"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
*************** Case 14 ***************
|
|
select a,b from t1 limit 1 union select a,b from t2 order by a limit 3;
|
|
{
|
|
"set_op":1,
|
|
"distinct":true,
|
|
"left_query": {
|
|
"stmt_type":1,
|
|
"table": [
|
|
{
|
|
"table_id":1099511677877,
|
|
"table_name":"t1",
|
|
"alias_name":"",
|
|
"synonym_name":"",
|
|
"table_type":0,
|
|
"ref_id":1099511677877,
|
|
"database_name":"db_set",
|
|
"for_update":false,
|
|
"wait":-1,
|
|
"mock_id":-1,
|
|
"view_base_item":-1
|
|
}
|
|
],
|
|
"joined_table": [
|
|
],
|
|
"partition_express": [
|
|
],
|
|
"column": [
|
|
{
|
|
"column_id":17,
|
|
"table_id":1099511677877,
|
|
"column":"a",
|
|
"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":1,
|
|
"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":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":18,
|
|
"table_id":1099511677877,
|
|
"column":"b",
|
|
"auto_filled_timestamp":false,
|
|
"default_value": {
|
|
"NULL":"NULL"
|
|
},
|
|
"base_tid":1099511677877,
|
|
"base_cid":18,
|
|
"expression": {
|
|
"item_type":"T_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"calc_type": {
|
|
"type":"NULL",
|
|
"collation":"invalid_type",
|
|
"coercibility":"INVALID"
|
|
}
|
|
},
|
|
"expr_info": [
|
|
"IS_COLUMN",
|
|
"CNT_COLUMN"
|
|
],
|
|
"rel_id": [
|
|
1
|
|
],
|
|
"table_id":1099511677877,
|
|
"column_id":18,
|
|
"database_name":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":1,
|
|
"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":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":"a",
|
|
"expr_name":"a",
|
|
"default": {
|
|
"NULL":"NULL"
|
|
}
|
|
},
|
|
{
|
|
"expression": {
|
|
"item_type":"T_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"calc_type": {
|
|
"type":"NULL",
|
|
"collation":"invalid_type",
|
|
"coercibility":"INVALID"
|
|
}
|
|
},
|
|
"expr_info": [
|
|
"IS_COLUMN",
|
|
"CNT_COLUMN"
|
|
],
|
|
"rel_id": [
|
|
1
|
|
],
|
|
"table_id":1099511677877,
|
|
"column_id":18,
|
|
"database_name":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":"b",
|
|
"expr_name":"b",
|
|
"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
|
|
},
|
|
"right_query": {
|
|
"stmt_type":1,
|
|
"table": [
|
|
{
|
|
"table_id":1099511677878,
|
|
"table_name":"t2",
|
|
"alias_name":"",
|
|
"synonym_name":"",
|
|
"table_type":0,
|
|
"ref_id":1099511677878,
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|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"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_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"calc_type": {
|
|
"type":"NULL",
|
|
"collation":"invalid_type",
|
|
"coercibility":"INVALID"
|
|
}
|
|
},
|
|
"expr_info": [
|
|
"IS_COLUMN",
|
|
"CNT_COLUMN"
|
|
],
|
|
"rel_id": [
|
|
1
|
|
],
|
|
"table_id":1099511677877,
|
|
"column_id":18,
|
|
"database_name":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":true,
|
|
"alias_name":"b",
|
|
"expr_name":"b",
|
|
"default": {
|
|
"NULL":"NULL"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
*************** Case 15 ***************
|
|
(select a,b from t1 limit 1) union (select a,b from t2 order by a limit 3);
|
|
{
|
|
"set_op":1,
|
|
"distinct":true,
|
|
"left_query": {
|
|
"stmt_type":1,
|
|
"table": [
|
|
{
|
|
"table_id":1099511677877,
|
|
"table_name":"t1",
|
|
"alias_name":"",
|
|
"synonym_name":"",
|
|
"table_type":0,
|
|
"ref_id":1099511677877,
|
|
"database_name":"db_set",
|
|
"for_update":false,
|
|
"wait":-1,
|
|
"mock_id":-1,
|
|
"view_base_item":-1
|
|
}
|
|
],
|
|
"joined_table": [
|
|
],
|
|
"partition_express": [
|
|
],
|
|
"column": [
|
|
{
|
|
"column_id":17,
|
|
"table_id":1099511677877,
|
|
"column":"a",
|
|
"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":1,
|
|
"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":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":18,
|
|
"table_id":1099511677877,
|
|
"column":"b",
|
|
"auto_filled_timestamp":false,
|
|
"default_value": {
|
|
"NULL":"NULL"
|
|
},
|
|
"base_tid":1099511677877,
|
|
"base_cid":18,
|
|
"expression": {
|
|
"item_type":"T_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"calc_type": {
|
|
"type":"NULL",
|
|
"collation":"invalid_type",
|
|
"coercibility":"INVALID"
|
|
}
|
|
},
|
|
"expr_info": [
|
|
"IS_COLUMN",
|
|
"CNT_COLUMN"
|
|
],
|
|
"rel_id": [
|
|
1
|
|
],
|
|
"table_id":1099511677877,
|
|
"column_id":18,
|
|
"database_name":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":1,
|
|
"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":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":"a",
|
|
"expr_name":"a",
|
|
"default": {
|
|
"NULL":"NULL"
|
|
}
|
|
},
|
|
{
|
|
"expression": {
|
|
"item_type":"T_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"calc_type": {
|
|
"type":"NULL",
|
|
"collation":"invalid_type",
|
|
"coercibility":"INVALID"
|
|
}
|
|
},
|
|
"expr_info": [
|
|
"IS_COLUMN",
|
|
"CNT_COLUMN"
|
|
],
|
|
"rel_id": [
|
|
1
|
|
],
|
|
"table_id":1099511677877,
|
|
"column_id":18,
|
|
"database_name":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":"b",
|
|
"expr_name":"b",
|
|
"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
|
|
},
|
|
"right_query": {
|
|
"stmt_type":1,
|
|
"table": [
|
|
{
|
|
"table_id":1099511677878,
|
|
"table_name":"t2",
|
|
"alias_name":"",
|
|
"synonym_name":"",
|
|
"table_type":0,
|
|
"ref_id":1099511677878,
|
|
"database_name":"db_set",
|
|
"for_update":false,
|
|
"wait":-1,
|
|
"mock_id":-1,
|
|
"view_base_item":-1
|
|
}
|
|
],
|
|
"joined_table": [
|
|
],
|
|
"partition_express": [
|
|
],
|
|
"column": [
|
|
{
|
|
"column_id":17,
|
|
"table_id":1099511677878,
|
|
"column":"a",
|
|
"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":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":18,
|
|
"table_id":1099511677878,
|
|
"column":"b",
|
|
"auto_filled_timestamp":false,
|
|
"default_value": {
|
|
"NULL":"NULL"
|
|
},
|
|
"base_tid":1099511677878,
|
|
"base_cid":18,
|
|
"expression": {
|
|
"item_type":"T_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":"a",
|
|
"expr_name":"a",
|
|
"default": {
|
|
"NULL":"NULL"
|
|
}
|
|
},
|
|
{
|
|
"expression": {
|
|
"item_type":"T_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":"b",
|
|
"expr_name":"b",
|
|
"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": [
|
|
{
|
|
"expression": {
|
|
"item_type":"T_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"INT",
|
|
"collation":"binary",
|
|
"coercibility":"NUMERIC"
|
|
},
|
|
"accuracy": {
|
|
"length":-1,
|
|
"precision":11,
|
|
"scale":0
|
|
},
|
|
"flag":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"expr_level":0,
|
|
"expr_levels": [
|
|
0
|
|
],
|
|
"column_flags":0,
|
|
"is_explicited_referece":true,
|
|
"explicited_ref_count":2,
|
|
"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":3
|
|
}
|
|
},
|
|
"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
|
|
},
|
|
"order_by": [
|
|
],
|
|
"limit":null,
|
|
"select": [
|
|
{
|
|
"expression": {
|
|
"item_type":"T_OP_UNION",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"INT",
|
|
"collation":"binary",
|
|
"coercibility":"NUMERIC"
|
|
},
|
|
"accuracy": {
|
|
"length":-1,
|
|
"precision":11,
|
|
"scale":0
|
|
},
|
|
"flag":1,
|
|
"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_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"INT",
|
|
"collation":"binary",
|
|
"coercibility":"NUMERIC"
|
|
},
|
|
"accuracy": {
|
|
"length":-1,
|
|
"precision":11,
|
|
"scale":0
|
|
},
|
|
"flag":1,
|
|
"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":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":true,
|
|
"alias_name":"a",
|
|
"expr_name":"a",
|
|
"default": {
|
|
"NULL":"NULL"
|
|
}
|
|
},
|
|
{
|
|
"expression": {
|
|
"item_type":"T_OP_UNION",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"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_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"calc_type": {
|
|
"type":"NULL",
|
|
"collation":"invalid_type",
|
|
"coercibility":"INVALID"
|
|
}
|
|
},
|
|
"expr_info": [
|
|
"IS_COLUMN",
|
|
"CNT_COLUMN"
|
|
],
|
|
"rel_id": [
|
|
1
|
|
],
|
|
"table_id":1099511677877,
|
|
"column_id":18,
|
|
"database_name":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":true,
|
|
"alias_name":"b",
|
|
"expr_name":"b",
|
|
"default": {
|
|
"NULL":"NULL"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
*************** Case 16 ***************
|
|
(select a,b from t1 limit 1) union (select a,b from t2 order by a limit 3) limit 1;
|
|
{
|
|
"set_op":1,
|
|
"distinct":true,
|
|
"left_query": {
|
|
"stmt_type":1,
|
|
"table": [
|
|
{
|
|
"table_id":1099511677877,
|
|
"table_name":"t1",
|
|
"alias_name":"",
|
|
"synonym_name":"",
|
|
"table_type":0,
|
|
"ref_id":1099511677877,
|
|
"database_name":"db_set",
|
|
"for_update":false,
|
|
"wait":-1,
|
|
"mock_id":-1,
|
|
"view_base_item":-1
|
|
}
|
|
],
|
|
"joined_table": [
|
|
],
|
|
"partition_express": [
|
|
],
|
|
"column": [
|
|
{
|
|
"column_id":17,
|
|
"table_id":1099511677877,
|
|
"column":"a",
|
|
"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":1,
|
|
"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":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"a",
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|
|
"scale":0
|
|
},
|
|
"flag":1,
|
|
"calc_type": {
|
|
"type":"NULL",
|
|
"collation":"invalid_type",
|
|
"coercibility":"INVALID"
|
|
}
|
|
},
|
|
"expr_info": [
|
|
"IS_CONST",
|
|
"CNT_CONST"
|
|
],
|
|
"rel_id": [
|
|
],
|
|
"value": {
|
|
"BIGINT":3
|
|
}
|
|
},
|
|
"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
|
|
},
|
|
"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
|
|
}
|
|
},
|
|
"select": [
|
|
{
|
|
"expression": {
|
|
"item_type":"T_OP_UNION",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"INT",
|
|
"collation":"binary",
|
|
"coercibility":"NUMERIC"
|
|
},
|
|
"accuracy": {
|
|
"length":-1,
|
|
"precision":11,
|
|
"scale":0
|
|
},
|
|
"flag":1,
|
|
"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_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"INT",
|
|
"collation":"binary",
|
|
"coercibility":"NUMERIC"
|
|
},
|
|
"accuracy": {
|
|
"length":-1,
|
|
"precision":11,
|
|
"scale":0
|
|
},
|
|
"flag":1,
|
|
"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":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":true,
|
|
"alias_name":"a",
|
|
"expr_name":"a",
|
|
"default": {
|
|
"NULL":"NULL"
|
|
}
|
|
},
|
|
{
|
|
"expression": {
|
|
"item_type":"T_OP_UNION",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"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_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"calc_type": {
|
|
"type":"NULL",
|
|
"collation":"invalid_type",
|
|
"coercibility":"INVALID"
|
|
}
|
|
},
|
|
"expr_info": [
|
|
"IS_COLUMN",
|
|
"CNT_COLUMN"
|
|
],
|
|
"rel_id": [
|
|
1
|
|
],
|
|
"table_id":1099511677877,
|
|
"column_id":18,
|
|
"database_name":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":true,
|
|
"alias_name":"b",
|
|
"expr_name":"b",
|
|
"default": {
|
|
"NULL":"NULL"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
*************** Case 17 ***************
|
|
select a,b from t1 union (select a,b from t2 order by a limit 3);
|
|
{
|
|
"set_op":1,
|
|
"distinct":true,
|
|
"left_query": {
|
|
"stmt_type":1,
|
|
"table": [
|
|
{
|
|
"table_id":1099511677877,
|
|
"table_name":"t1",
|
|
"alias_name":"",
|
|
"synonym_name":"",
|
|
"table_type":0,
|
|
"ref_id":1099511677877,
|
|
"database_name":"db_set",
|
|
"for_update":false,
|
|
"wait":-1,
|
|
"mock_id":-1,
|
|
"view_base_item":-1
|
|
}
|
|
],
|
|
"joined_table": [
|
|
],
|
|
"partition_express": [
|
|
],
|
|
"column": [
|
|
{
|
|
"column_id":17,
|
|
"table_id":1099511677877,
|
|
"column":"a",
|
|
"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":1,
|
|
"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":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":18,
|
|
"table_id":1099511677877,
|
|
"column":"b",
|
|
"auto_filled_timestamp":false,
|
|
"default_value": {
|
|
"NULL":"NULL"
|
|
},
|
|
"base_tid":1099511677877,
|
|
"base_cid":18,
|
|
"expression": {
|
|
"item_type":"T_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"calc_type": {
|
|
"type":"NULL",
|
|
"collation":"invalid_type",
|
|
"coercibility":"INVALID"
|
|
}
|
|
},
|
|
"expr_info": [
|
|
"IS_COLUMN",
|
|
"CNT_COLUMN"
|
|
],
|
|
"rel_id": [
|
|
1
|
|
],
|
|
"table_id":1099511677877,
|
|
"column_id":18,
|
|
"database_name":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":1,
|
|
"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":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":"a",
|
|
"expr_name":"a",
|
|
"default": {
|
|
"NULL":"NULL"
|
|
}
|
|
},
|
|
{
|
|
"expression": {
|
|
"item_type":"T_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"calc_type": {
|
|
"type":"NULL",
|
|
"collation":"invalid_type",
|
|
"coercibility":"INVALID"
|
|
}
|
|
},
|
|
"expr_info": [
|
|
"IS_COLUMN",
|
|
"CNT_COLUMN"
|
|
],
|
|
"rel_id": [
|
|
1
|
|
],
|
|
"table_id":1099511677877,
|
|
"column_id":18,
|
|
"database_name":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"expr_level":0,
|
|
"expr_levels": [
|
|
0
|
|
],
|
|
"column_flags":0,
|
|
"is_explicited_referece":true,
|
|
"explicited_ref_count":1,
|
|
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"database_name":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":true,
|
|
"alias_name":"a",
|
|
"expr_name":"a",
|
|
"default": {
|
|
"NULL":"NULL"
|
|
}
|
|
},
|
|
{
|
|
"expression": {
|
|
"item_type":"T_OP_UNION",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"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_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"calc_type": {
|
|
"type":"NULL",
|
|
"collation":"invalid_type",
|
|
"coercibility":"INVALID"
|
|
}
|
|
},
|
|
"expr_info": [
|
|
"IS_COLUMN",
|
|
"CNT_COLUMN"
|
|
],
|
|
"rel_id": [
|
|
1
|
|
],
|
|
"table_id":1099511677877,
|
|
"column_id":18,
|
|
"database_name":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":"CHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":10,
|
|
"precision":-1,
|
|
"scale":-1
|
|
},
|
|
"flag":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"b",
|
|
"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":true,
|
|
"alias_name":"b",
|
|
"expr_name":"b",
|
|
"default": {
|
|
"NULL":"NULL"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
*************** Case 18 ***************
|
|
(select a from t1) union select a from t2;
|
|
{
|
|
"set_op":1,
|
|
"distinct":true,
|
|
"left_query": {
|
|
"stmt_type":1,
|
|
"table": [
|
|
{
|
|
"table_id":1099511677877,
|
|
"table_name":"t1",
|
|
"alias_name":"",
|
|
"synonym_name":"",
|
|
"table_type":0,
|
|
"ref_id":1099511677877,
|
|
"database_name":"db_set",
|
|
"for_update":false,
|
|
"wait":-1,
|
|
"mock_id":-1,
|
|
"view_base_item":-1
|
|
}
|
|
],
|
|
"joined_table": [
|
|
],
|
|
"partition_express": [
|
|
],
|
|
"column": [
|
|
{
|
|
"column_id":17,
|
|
"table_id":1099511677877,
|
|
"column":"a",
|
|
"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":1,
|
|
"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":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":1,
|
|
"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":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":"a",
|
|
"expr_name":"a",
|
|
"default": {
|
|
"NULL":"NULL"
|
|
}
|
|
}
|
|
],
|
|
"distinct":false,
|
|
"rollup":false,
|
|
"nocycle":false,
|
|
"from": [
|
|
{
|
|
"table_id":1099511677877,
|
|
"is_join":false
|
|
}
|
|
],
|
|
"start_with": [
|
|
],
|
|
"connect_by": [
|
|
],
|
|
"where": [
|
|
],
|
|
"group_by": [
|
|
],
|
|
"having": [
|
|
],
|
|
"aggr_func": [
|
|
],
|
|
"order_by": [
|
|
],
|
|
"limit":null,
|
|
"offset":null,
|
|
"show_stmt_ctx": {
|
|
"is_from_show_stmt":false,
|
|
"global_scope":false,
|
|
"tenant_id":-1,
|
|
"show_database_id":-1,
|
|
"show_table_id":-1,
|
|
"grants_user_id":-1
|
|
},
|
|
"hint": {
|
|
"read_static":false,
|
|
"no_rewrite":false,
|
|
"frozen_version":-1,
|
|
"topk_precision":-1,
|
|
"sharding_minimum_row_count":0,
|
|
"query_timeout":-1,
|
|
"hotspot":false,
|
|
"index": [
|
|
],
|
|
"read_consistency":-1,
|
|
"join_ordered":false,
|
|
"join_order": [
|
|
],
|
|
"merge_hint_ids": [
|
|
],
|
|
"hash_hint_ids": [
|
|
],
|
|
"no_hash_hint_ids": [
|
|
],
|
|
"nl_hint_ids": [
|
|
],
|
|
"part_hints": [
|
|
],
|
|
"use_late_materialization":-1,
|
|
"log_level":"",
|
|
"max_concurrent":-1,
|
|
"only_concurrent_hint":false,
|
|
"has_hint_exclude_concurrent":false,
|
|
"parallel":-1,
|
|
"use_px":2,
|
|
"use join filter":false,
|
|
"org_pq_distributes": [
|
|
],
|
|
"pq_distributes": [
|
|
]
|
|
},
|
|
"query_context": {
|
|
"param_num":0,
|
|
"fetch_cur_time":true,
|
|
"calculable_items": [
|
|
]
|
|
},
|
|
"extra_output_exprs": [
|
|
],
|
|
"current_level":0,
|
|
"equal_sets": [
|
|
],
|
|
"pseudo_column_exprs": [
|
|
],
|
|
"child_stmts": [
|
|
],
|
|
"has_transformed_for_hierarchical_query":false,
|
|
"is_hierarchical_query":false
|
|
},
|
|
"right_query": {
|
|
"stmt_type":1,
|
|
"table": [
|
|
{
|
|
"table_id":1099511677878,
|
|
"table_name":"t2",
|
|
"alias_name":"",
|
|
"synonym_name":"",
|
|
"table_type":0,
|
|
"ref_id":1099511677878,
|
|
"database_name":"db_set",
|
|
"for_update":false,
|
|
"wait":-1,
|
|
"mock_id":-1,
|
|
"view_base_item":-1
|
|
}
|
|
],
|
|
"joined_table": [
|
|
],
|
|
"partition_express": [
|
|
],
|
|
"column": [
|
|
{
|
|
"column_id":17,
|
|
"table_id":1099511677878,
|
|
"column":"a",
|
|
"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":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":"a",
|
|
"expr_name":"a",
|
|
"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":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":"INT",
|
|
"collation":"binary",
|
|
"coercibility":"NUMERIC"
|
|
},
|
|
"accuracy": {
|
|
"length":-1,
|
|
"precision":11,
|
|
"scale":0
|
|
},
|
|
"flag":1,
|
|
"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_REF_COLUMN",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"INT",
|
|
"collation":"binary",
|
|
"coercibility":"NUMERIC"
|
|
},
|
|
"accuracy": {
|
|
"length":-1,
|
|
"precision":11,
|
|
"scale":0
|
|
},
|
|
"flag":1,
|
|
"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":"db_set",
|
|
"table_name":"t1",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":1,
|
|
"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":"db_set",
|
|
"table_name":"t2",
|
|
"synonym_name":"",
|
|
"column_name":"a",
|
|
"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":true,
|
|
"alias_name":"a",
|
|
"expr_name":"a",
|
|
"default": {
|
|
"NULL":"NULL"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
*************** Case 19 ***************
|
|
select 'test' union select 'test2';
|
|
{
|
|
"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":5,
|
|
"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":"test",
|
|
"expr_name":"test",
|
|
"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":5,
|
|
"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_VARCHAR",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"VARCHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"COERCIBLE"
|
|
},
|
|
"accuracy": {
|
|
"length":4,
|
|
"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":"test",
|
|
"collation":"utf8mb4_general_ci"
|
|
}
|
|
},
|
|
{
|
|
"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":21477785622
|
|
}
|
|
}
|
|
],
|
|
"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":5,
|
|
"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_VARCHAR",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"VARCHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"COERCIBLE"
|
|
},
|
|
"accuracy": {
|
|
"length":5,
|
|
"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":"test2",
|
|
"collation":"utf8mb4_general_ci"
|
|
}
|
|
},
|
|
{
|
|
"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":21477785622
|
|
}
|
|
}
|
|
],
|
|
"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":5,
|
|
"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":"test2",
|
|
"expr_name":"test2",
|
|
"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":5,
|
|
"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_VARCHAR",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"VARCHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"COERCIBLE"
|
|
},
|
|
"accuracy": {
|
|
"length":4,
|
|
"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":"test",
|
|
"collation":"utf8mb4_general_ci"
|
|
}
|
|
},
|
|
{
|
|
"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":21477785622
|
|
}
|
|
}
|
|
],
|
|
"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":5,
|
|
"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_VARCHAR",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"VARCHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"COERCIBLE"
|
|
},
|
|
"accuracy": {
|
|
"length":5,
|
|
"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":"test2",
|
|
"collation":"utf8mb4_general_ci"
|
|
}
|
|
},
|
|
{
|
|
"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":21477785622
|
|
}
|
|
}
|
|
],
|
|
"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":5,
|
|
"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":5,
|
|
"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_VARCHAR",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"VARCHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"COERCIBLE"
|
|
},
|
|
"accuracy": {
|
|
"length":4,
|
|
"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":"test",
|
|
"collation":"utf8mb4_general_ci"
|
|
}
|
|
},
|
|
{
|
|
"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":21477785622
|
|
}
|
|
}
|
|
],
|
|
"enum_set_values": [
|
|
]
|
|
},
|
|
{
|
|
"item_type":"T_FUN_SYS_CAST",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"VARCHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":5,
|
|
"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_VARCHAR",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"VARCHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"COERCIBLE"
|
|
},
|
|
"accuracy": {
|
|
"length":5,
|
|
"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":"test2",
|
|
"collation":"utf8mb4_general_ci"
|
|
}
|
|
},
|
|
{
|
|
"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":21477785622
|
|
}
|
|
}
|
|
],
|
|
"enum_set_values": [
|
|
]
|
|
}
|
|
]
|
|
},
|
|
"is_alias":true,
|
|
"alias_name":"test",
|
|
"expr_name":"test",
|
|
"default": {
|
|
"NULL":"NULL"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
*************** Case 20 ***************
|
|
select 'test' limit 1 union select 'test2';
|
|
{
|
|
"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":5,
|
|
"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":"test",
|
|
"expr_name":"test",
|
|
"default": {
|
|
"NULL":"NULL"
|
|
}
|
|
}
|
|
],
|
|
"distinct":false,
|
|
"rollup":false,
|
|
"nocycle":false,
|
|
"from": [
|
|
],
|
|
"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":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":5,
|
|
"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",
|
|
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|
|
"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":21477785622
|
|
}
|
|
}
|
|
],
|
|
"enum_set_values": [
|
|
]
|
|
},
|
|
{
|
|
"item_type":"T_FUN_SYS_CAST",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"VARCHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":5,
|
|
"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_VARCHAR",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"VARCHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"COERCIBLE"
|
|
},
|
|
"accuracy": {
|
|
"length":5,
|
|
"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":"test2",
|
|
"collation":"utf8mb4_general_ci"
|
|
}
|
|
},
|
|
{
|
|
"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":21477785622
|
|
}
|
|
}
|
|
],
|
|
"enum_set_values": [
|
|
]
|
|
}
|
|
]
|
|
},
|
|
"is_alias":true,
|
|
"alias_name":"test",
|
|
"expr_name":"test",
|
|
"default": {
|
|
"NULL":"NULL"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
*************** Case 21 ***************
|
|
select a from t1 union select a from t1 order by a+1;
|
|
*************** Case 22 ***************
|
|
select/*+query_timeout(1000)*/ 'test' union select/*+query_timeout(1000)*/ 'test2';
|
|
{
|
|
"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":5,
|
|
"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":"test",
|
|
"expr_name":"test",
|
|
"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":1000,
|
|
"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":true,
|
|
"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":5,
|
|
"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_VARCHAR",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"VARCHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"COERCIBLE"
|
|
},
|
|
"accuracy": {
|
|
"length":4,
|
|
"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":"test",
|
|
"collation":"utf8mb4_general_ci"
|
|
}
|
|
},
|
|
{
|
|
"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":21477785622
|
|
}
|
|
}
|
|
],
|
|
"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":5,
|
|
"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_VARCHAR",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"VARCHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"COERCIBLE"
|
|
},
|
|
"accuracy": {
|
|
"length":5,
|
|
"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":"test2",
|
|
"collation":"utf8mb4_general_ci"
|
|
}
|
|
},
|
|
{
|
|
"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":21477785622
|
|
}
|
|
}
|
|
],
|
|
"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":5,
|
|
"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":"test2",
|
|
"expr_name":"test2",
|
|
"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":1000,
|
|
"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":true,
|
|
"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":5,
|
|
"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_VARCHAR",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"VARCHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"COERCIBLE"
|
|
},
|
|
"accuracy": {
|
|
"length":4,
|
|
"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":"test",
|
|
"collation":"utf8mb4_general_ci"
|
|
}
|
|
},
|
|
{
|
|
"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":21477785622
|
|
}
|
|
}
|
|
],
|
|
"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":5,
|
|
"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_VARCHAR",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"VARCHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"COERCIBLE"
|
|
},
|
|
"accuracy": {
|
|
"length":5,
|
|
"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":"test2",
|
|
"collation":"utf8mb4_general_ci"
|
|
}
|
|
},
|
|
{
|
|
"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":21477785622
|
|
}
|
|
}
|
|
],
|
|
"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":5,
|
|
"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":5,
|
|
"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_VARCHAR",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"VARCHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"COERCIBLE"
|
|
},
|
|
"accuracy": {
|
|
"length":4,
|
|
"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":"test",
|
|
"collation":"utf8mb4_general_ci"
|
|
}
|
|
},
|
|
{
|
|
"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":21477785622
|
|
}
|
|
}
|
|
],
|
|
"enum_set_values": [
|
|
]
|
|
},
|
|
{
|
|
"item_type":"T_FUN_SYS_CAST",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"VARCHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"IMPLICIT"
|
|
},
|
|
"accuracy": {
|
|
"length":5,
|
|
"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_VARCHAR",
|
|
"result_type": {
|
|
"meta": {
|
|
"type":"VARCHAR",
|
|
"collation":"utf8mb4_general_ci",
|
|
"coercibility":"COERCIBLE"
|
|
},
|
|
"accuracy": {
|
|
"length":5,
|
|
"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":"test2",
|
|
"collation":"utf8mb4_general_ci"
|
|
}
|
|
},
|
|
{
|
|
"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":21477785622
|
|
}
|
|
}
|
|
],
|
|
"enum_set_values": [
|
|
]
|
|
}
|
|
]
|
|
},
|
|
"is_alias":true,
|
|
"alias_name":"test",
|
|
"expr_name":"test",
|
|
"default": {
|
|
"NULL":"NULL"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
*************** Case 23 ***************
|
|
drop table t1,t2;
|
|
{
|
|
"stmt_type":21,
|
|
"drop_table_arg": {
|
|
"tenant_id":1,
|
|
"table_type":3,
|
|
"tables": [
|
|
{
|
|
"database_name":"db_set",
|
|
"table_name":"t1"
|
|
},
|
|
{
|
|
"database_name":"db_set",
|
|
"table_name":"t2"
|
|
}
|
|
],
|
|
"if_exist":false,
|
|
"to_recyclebin":false,
|
|
"session_id":-1,
|
|
"sess_create_time":0
|
|
}
|
|
}
|
|
*************** Case 24 ***************
|
|
drop database db_set;
|
|
{
|
|
"drop_database_arg":"tenant_id",
|
|
"database_name":"db_set",
|
|
"if_exist":false,
|
|
"to_recyclebin":false
|
|
}
|