Files
oceanbase/unittest/sql/resolver/result/test_resolver_precast.result
wangzelin.wzl 93a1074b0c patch 4.0
2022-10-24 17:57:12 +08:00

8270 lines
184 KiB
Plaintext

*************** Case 1 ***************
select * from t3 where c3='2';
{
"stmt_type":1,
"table": [
{
"table_id":1099511677779,
"table_name":"t3",
"alias_name":"",
"synonym_name":"",
"table_type":0,
"ref_id":1099511677779,
"database_name":"rongxuan",
"for_update":false,
"wait":-1,
"mock_id":-1,
"view_base_item":-1
}
],
"joined_table": [
],
"partition_express": [
],
"column": [
{
"column_id":16,
"table_id":1099511677779,
"column":"c3",
"auto_filled_timestamp":false,
"default_value": {
"NULL":"NULL"
},
"base_tid":1099511677779,
"base_cid":16,
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"expr_level":0,
"expr_levels": [
0
],
"column_flags":0,
"is_explicited_referece":true,
"explicited_ref_count":2,
"enum_set_values": [
],
"is_lob_column":false
}
},
{
"column_id":17,
"table_id":1099511677779,
"column":"c4",
"auto_filled_timestamp":false,
"default_value": {
"NULL":"NULL"
},
"base_tid":1099511677779,
"base_cid":17,
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":17,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c4",
"expr_level":0,
"expr_levels": [
0
],
"column_flags":0,
"is_explicited_referece":true,
"explicited_ref_count":1,
"enum_set_values": [
],
"is_lob_column":false
}
}
],
"select": [
{
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"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":"c3",
"expr_name":"c3",
"default": {
"NULL":"NULL"
}
},
{
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":17,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c4",
"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":"c4",
"expr_name":"c4",
"default": {
"NULL":"NULL"
}
}
],
"distinct":false,
"rollup":false,
"nocycle":false,
"from": [
{
"table_id":1099511677779,
"is_join":false
}
],
"start_with": [
],
"connect_by": [
],
"where": [
{
"item_type":"T_OP_EQ",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":1,
"scale":0
},
"flag":1,
"calc_type": {
"type":"DECIMAL",
"collation":"binary",
"coercibility":"NUMERIC"
}
},
"expr_info": [
"CNT_CONST",
"CNT_COLUMN",
"CNT_STATIC_PARAM",
"IS_SIMPLE_COND"
],
"rel_id": [
1
],
"expr_levels": [
0
],
"children": [
{
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"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_QUESTIONMARK",
"result_type": {
"meta": {
"type":"DECIMAL",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":1,
"scale":0
},
"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
}
}
]
}
],
"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_TO_TYPE",
"result_type": {
"meta": {
"type":"DECIMAL",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":1,
"scale":0
},
"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_STATIC_PARAM",
"CNT_FUNC",
"CNT_CALCULABLE_EXPR"
],
"rel_id": [
],
"expr_levels": [
],
"func":"to_type",
"children": [
{
"item_type":"T_QUESTIONMARK",
"result_type": {
"meta": {
"type":"VARCHAR",
"collation":"utf8mb4_general_ci",
"coercibility":"COERCIBLE"
},
"accuracy": {
"length":1,
"precision":1,
"scale":-1
},
"flag":1,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_CONST",
"IS_STATIC_PARAM",
"CNT_CONST",
"CNT_STATIC_PARAM"
],
"rel_id": [
],
"value": {
"UNKNOWN":0
}
}
],
"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
}
*************** Case 2 ***************
select * from t3 where c3>'2';
{
"stmt_type":1,
"table": [
{
"table_id":1099511677779,
"table_name":"t3",
"alias_name":"",
"synonym_name":"",
"table_type":0,
"ref_id":1099511677779,
"database_name":"rongxuan",
"for_update":false,
"wait":-1,
"mock_id":-1,
"view_base_item":-1
}
],
"joined_table": [
],
"partition_express": [
],
"column": [
{
"column_id":16,
"table_id":1099511677779,
"column":"c3",
"auto_filled_timestamp":false,
"default_value": {
"NULL":"NULL"
},
"base_tid":1099511677779,
"base_cid":16,
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"expr_level":0,
"expr_levels": [
0
],
"column_flags":0,
"is_explicited_referece":true,
"explicited_ref_count":2,
"enum_set_values": [
],
"is_lob_column":false
}
},
{
"column_id":17,
"table_id":1099511677779,
"column":"c4",
"auto_filled_timestamp":false,
"default_value": {
"NULL":"NULL"
},
"base_tid":1099511677779,
"base_cid":17,
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":17,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c4",
"expr_level":0,
"expr_levels": [
0
],
"column_flags":0,
"is_explicited_referece":true,
"explicited_ref_count":1,
"enum_set_values": [
],
"is_lob_column":false
}
}
],
"select": [
{
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"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":"c3",
"expr_name":"c3",
"default": {
"NULL":"NULL"
}
},
{
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":17,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c4",
"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":"c4",
"expr_name":"c4",
"default": {
"NULL":"NULL"
}
}
],
"distinct":false,
"rollup":false,
"nocycle":false,
"from": [
{
"table_id":1099511677779,
"is_join":false
}
],
"start_with": [
],
"connect_by": [
],
"where": [
{
"item_type":"T_OP_GT",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":1,
"scale":0
},
"flag":1,
"calc_type": {
"type":"DECIMAL",
"collation":"binary",
"coercibility":"NUMERIC"
}
},
"expr_info": [
"CNT_CONST",
"CNT_COLUMN",
"CNT_STATIC_PARAM",
"IS_RANGE_COND"
],
"rel_id": [
1
],
"expr_levels": [
0
],
"children": [
{
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"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_QUESTIONMARK",
"result_type": {
"meta": {
"type":"DECIMAL",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":1,
"scale":0
},
"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
}
}
]
}
],
"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_TO_TYPE",
"result_type": {
"meta": {
"type":"DECIMAL",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":1,
"scale":0
},
"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_STATIC_PARAM",
"CNT_FUNC",
"CNT_CALCULABLE_EXPR"
],
"rel_id": [
],
"expr_levels": [
],
"func":"to_type",
"children": [
{
"item_type":"T_QUESTIONMARK",
"result_type": {
"meta": {
"type":"VARCHAR",
"collation":"utf8mb4_general_ci",
"coercibility":"COERCIBLE"
},
"accuracy": {
"length":1,
"precision":1,
"scale":-1
},
"flag":1,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_CONST",
"IS_STATIC_PARAM",
"CNT_CONST",
"CNT_STATIC_PARAM"
],
"rel_id": [
],
"value": {
"UNKNOWN":0
}
}
],
"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
}
*************** Case 3 ***************
select * from t3 where c3<'2';
{
"stmt_type":1,
"table": [
{
"table_id":1099511677779,
"table_name":"t3",
"alias_name":"",
"synonym_name":"",
"table_type":0,
"ref_id":1099511677779,
"database_name":"rongxuan",
"for_update":false,
"wait":-1,
"mock_id":-1,
"view_base_item":-1
}
],
"joined_table": [
],
"partition_express": [
],
"column": [
{
"column_id":16,
"table_id":1099511677779,
"column":"c3",
"auto_filled_timestamp":false,
"default_value": {
"NULL":"NULL"
},
"base_tid":1099511677779,
"base_cid":16,
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"expr_level":0,
"expr_levels": [
0
],
"column_flags":0,
"is_explicited_referece":true,
"explicited_ref_count":2,
"enum_set_values": [
],
"is_lob_column":false
}
},
{
"column_id":17,
"table_id":1099511677779,
"column":"c4",
"auto_filled_timestamp":false,
"default_value": {
"NULL":"NULL"
},
"base_tid":1099511677779,
"base_cid":17,
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":17,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c4",
"expr_level":0,
"expr_levels": [
0
],
"column_flags":0,
"is_explicited_referece":true,
"explicited_ref_count":1,
"enum_set_values": [
],
"is_lob_column":false
}
}
],
"select": [
{
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"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":"c3",
"expr_name":"c3",
"default": {
"NULL":"NULL"
}
},
{
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":17,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c4",
"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":"c4",
"expr_name":"c4",
"default": {
"NULL":"NULL"
}
}
],
"distinct":false,
"rollup":false,
"nocycle":false,
"from": [
{
"table_id":1099511677779,
"is_join":false
}
],
"start_with": [
],
"connect_by": [
],
"where": [
{
"item_type":"T_OP_LT",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":1,
"scale":0
},
"flag":1,
"calc_type": {
"type":"DECIMAL",
"collation":"binary",
"coercibility":"NUMERIC"
}
},
"expr_info": [
"CNT_CONST",
"CNT_COLUMN",
"CNT_STATIC_PARAM",
"IS_RANGE_COND"
],
"rel_id": [
1
],
"expr_levels": [
0
],
"children": [
{
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"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_QUESTIONMARK",
"result_type": {
"meta": {
"type":"DECIMAL",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":1,
"scale":0
},
"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
}
}
]
}
],
"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_TO_TYPE",
"result_type": {
"meta": {
"type":"DECIMAL",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":1,
"scale":0
},
"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_STATIC_PARAM",
"CNT_FUNC",
"CNT_CALCULABLE_EXPR"
],
"rel_id": [
],
"expr_levels": [
],
"func":"to_type",
"children": [
{
"item_type":"T_QUESTIONMARK",
"result_type": {
"meta": {
"type":"VARCHAR",
"collation":"utf8mb4_general_ci",
"coercibility":"COERCIBLE"
},
"accuracy": {
"length":1,
"precision":1,
"scale":-1
},
"flag":1,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_CONST",
"IS_STATIC_PARAM",
"CNT_CONST",
"CNT_STATIC_PARAM"
],
"rel_id": [
],
"value": {
"UNKNOWN":0
}
}
],
"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
}
*************** Case 4 ***************
select * from t3 where c3>='2';
{
"stmt_type":1,
"table": [
{
"table_id":1099511677779,
"table_name":"t3",
"alias_name":"",
"synonym_name":"",
"table_type":0,
"ref_id":1099511677779,
"database_name":"rongxuan",
"for_update":false,
"wait":-1,
"mock_id":-1,
"view_base_item":-1
}
],
"joined_table": [
],
"partition_express": [
],
"column": [
{
"column_id":16,
"table_id":1099511677779,
"column":"c3",
"auto_filled_timestamp":false,
"default_value": {
"NULL":"NULL"
},
"base_tid":1099511677779,
"base_cid":16,
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"expr_level":0,
"expr_levels": [
0
],
"column_flags":0,
"is_explicited_referece":true,
"explicited_ref_count":2,
"enum_set_values": [
],
"is_lob_column":false
}
},
{
"column_id":17,
"table_id":1099511677779,
"column":"c4",
"auto_filled_timestamp":false,
"default_value": {
"NULL":"NULL"
},
"base_tid":1099511677779,
"base_cid":17,
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":17,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c4",
"expr_level":0,
"expr_levels": [
0
],
"column_flags":0,
"is_explicited_referece":true,
"explicited_ref_count":1,
"enum_set_values": [
],
"is_lob_column":false
}
}
],
"select": [
{
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"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":"c3",
"expr_name":"c3",
"default": {
"NULL":"NULL"
}
},
{
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":17,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c4",
"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":"c4",
"expr_name":"c4",
"default": {
"NULL":"NULL"
}
}
],
"distinct":false,
"rollup":false,
"nocycle":false,
"from": [
{
"table_id":1099511677779,
"is_join":false
}
],
"start_with": [
],
"connect_by": [
],
"where": [
{
"item_type":"T_OP_GE",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":1,
"scale":0
},
"flag":1,
"calc_type": {
"type":"DECIMAL",
"collation":"binary",
"coercibility":"NUMERIC"
}
},
"expr_info": [
"CNT_CONST",
"CNT_COLUMN",
"CNT_STATIC_PARAM",
"IS_RANGE_COND"
],
"rel_id": [
1
],
"expr_levels": [
0
],
"children": [
{
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"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_QUESTIONMARK",
"result_type": {
"meta": {
"type":"DECIMAL",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":1,
"scale":0
},
"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
}
}
]
}
],
"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_TO_TYPE",
"result_type": {
"meta": {
"type":"DECIMAL",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":1,
"scale":0
},
"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_STATIC_PARAM",
"CNT_FUNC",
"CNT_CALCULABLE_EXPR"
],
"rel_id": [
],
"expr_levels": [
],
"func":"to_type",
"children": [
{
"item_type":"T_QUESTIONMARK",
"result_type": {
"meta": {
"type":"VARCHAR",
"collation":"utf8mb4_general_ci",
"coercibility":"COERCIBLE"
},
"accuracy": {
"length":1,
"precision":1,
"scale":-1
},
"flag":1,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_CONST",
"IS_STATIC_PARAM",
"CNT_CONST",
"CNT_STATIC_PARAM"
],
"rel_id": [
],
"value": {
"UNKNOWN":0
}
}
],
"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
}
*************** Case 5 ***************
select * from t3 where c3<='2';
{
"stmt_type":1,
"table": [
{
"table_id":1099511677779,
"table_name":"t3",
"alias_name":"",
"synonym_name":"",
"table_type":0,
"ref_id":1099511677779,
"database_name":"rongxuan",
"for_update":false,
"wait":-1,
"mock_id":-1,
"view_base_item":-1
}
],
"joined_table": [
],
"partition_express": [
],
"column": [
{
"column_id":16,
"table_id":1099511677779,
"column":"c3",
"auto_filled_timestamp":false,
"default_value": {
"NULL":"NULL"
},
"base_tid":1099511677779,
"base_cid":16,
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"expr_level":0,
"expr_levels": [
0
],
"column_flags":0,
"is_explicited_referece":true,
"explicited_ref_count":2,
"enum_set_values": [
],
"is_lob_column":false
}
},
{
"column_id":17,
"table_id":1099511677779,
"column":"c4",
"auto_filled_timestamp":false,
"default_value": {
"NULL":"NULL"
},
"base_tid":1099511677779,
"base_cid":17,
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":17,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c4",
"expr_level":0,
"expr_levels": [
0
],
"column_flags":0,
"is_explicited_referece":true,
"explicited_ref_count":1,
"enum_set_values": [
],
"is_lob_column":false
}
}
],
"select": [
{
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"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":"c3",
"expr_name":"c3",
"default": {
"NULL":"NULL"
}
},
{
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":17,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c4",
"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":"c4",
"expr_name":"c4",
"default": {
"NULL":"NULL"
}
}
],
"distinct":false,
"rollup":false,
"nocycle":false,
"from": [
{
"table_id":1099511677779,
"is_join":false
}
],
"start_with": [
],
"connect_by": [
],
"where": [
{
"item_type":"T_OP_LE",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":1,
"scale":0
},
"flag":1,
"calc_type": {
"type":"DECIMAL",
"collation":"binary",
"coercibility":"NUMERIC"
}
},
"expr_info": [
"CNT_CONST",
"CNT_COLUMN",
"CNT_STATIC_PARAM",
"IS_RANGE_COND"
],
"rel_id": [
1
],
"expr_levels": [
0
],
"children": [
{
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"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_QUESTIONMARK",
"result_type": {
"meta": {
"type":"DECIMAL",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":1,
"scale":0
},
"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
}
}
]
}
],
"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_TO_TYPE",
"result_type": {
"meta": {
"type":"DECIMAL",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":1,
"scale":0
},
"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_STATIC_PARAM",
"CNT_FUNC",
"CNT_CALCULABLE_EXPR"
],
"rel_id": [
],
"expr_levels": [
],
"func":"to_type",
"children": [
{
"item_type":"T_QUESTIONMARK",
"result_type": {
"meta": {
"type":"VARCHAR",
"collation":"utf8mb4_general_ci",
"coercibility":"COERCIBLE"
},
"accuracy": {
"length":1,
"precision":1,
"scale":-1
},
"flag":1,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_CONST",
"IS_STATIC_PARAM",
"CNT_CONST",
"CNT_STATIC_PARAM"
],
"rel_id": [
],
"value": {
"UNKNOWN":0
}
}
],
"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
}
*************** Case 6 ***************
select * from t3 where c3!='2';
{
"stmt_type":1,
"table": [
{
"table_id":1099511677779,
"table_name":"t3",
"alias_name":"",
"synonym_name":"",
"table_type":0,
"ref_id":1099511677779,
"database_name":"rongxuan",
"for_update":false,
"wait":-1,
"mock_id":-1,
"view_base_item":-1
}
],
"joined_table": [
],
"partition_express": [
],
"column": [
{
"column_id":16,
"table_id":1099511677779,
"column":"c3",
"auto_filled_timestamp":false,
"default_value": {
"NULL":"NULL"
},
"base_tid":1099511677779,
"base_cid":16,
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"expr_level":0,
"expr_levels": [
0
],
"column_flags":0,
"is_explicited_referece":true,
"explicited_ref_count":2,
"enum_set_values": [
],
"is_lob_column":false
}
},
{
"column_id":17,
"table_id":1099511677779,
"column":"c4",
"auto_filled_timestamp":false,
"default_value": {
"NULL":"NULL"
},
"base_tid":1099511677779,
"base_cid":17,
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":17,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c4",
"expr_level":0,
"expr_levels": [
0
],
"column_flags":0,
"is_explicited_referece":true,
"explicited_ref_count":1,
"enum_set_values": [
],
"is_lob_column":false
}
}
],
"select": [
{
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"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":"c3",
"expr_name":"c3",
"default": {
"NULL":"NULL"
}
},
{
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":17,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c4",
"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":"c4",
"expr_name":"c4",
"default": {
"NULL":"NULL"
}
}
],
"distinct":false,
"rollup":false,
"nocycle":false,
"from": [
{
"table_id":1099511677779,
"is_join":false
}
],
"start_with": [
],
"connect_by": [
],
"where": [
{
"item_type":"T_OP_NE",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":1,
"scale":0
},
"flag":1,
"calc_type": {
"type":"DECIMAL",
"collation":"binary",
"coercibility":"NUMERIC"
}
},
"expr_info": [
"CNT_CONST",
"CNT_COLUMN",
"CNT_STATIC_PARAM"
],
"rel_id": [
1
],
"expr_levels": [
0
],
"children": [
{
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"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_QUESTIONMARK",
"result_type": {
"meta": {
"type":"DECIMAL",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":1,
"scale":0
},
"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
}
}
]
}
],
"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_TO_TYPE",
"result_type": {
"meta": {
"type":"DECIMAL",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":1,
"scale":0
},
"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_STATIC_PARAM",
"CNT_FUNC",
"CNT_CALCULABLE_EXPR"
],
"rel_id": [
],
"expr_levels": [
],
"func":"to_type",
"children": [
{
"item_type":"T_QUESTIONMARK",
"result_type": {
"meta": {
"type":"VARCHAR",
"collation":"utf8mb4_general_ci",
"coercibility":"COERCIBLE"
},
"accuracy": {
"length":1,
"precision":1,
"scale":-1
},
"flag":1,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_CONST",
"IS_STATIC_PARAM",
"CNT_CONST",
"CNT_STATIC_PARAM"
],
"rel_id": [
],
"value": {
"UNKNOWN":0
}
}
],
"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
}
*************** Case 7 ***************
select * from t3 where c3<=>'2';
{
"stmt_type":1,
"table": [
{
"table_id":1099511677779,
"table_name":"t3",
"alias_name":"",
"synonym_name":"",
"table_type":0,
"ref_id":1099511677779,
"database_name":"rongxuan",
"for_update":false,
"wait":-1,
"mock_id":-1,
"view_base_item":-1
}
],
"joined_table": [
],
"partition_express": [
],
"column": [
{
"column_id":16,
"table_id":1099511677779,
"column":"c3",
"auto_filled_timestamp":false,
"default_value": {
"NULL":"NULL"
},
"base_tid":1099511677779,
"base_cid":16,
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"expr_level":0,
"expr_levels": [
0
],
"column_flags":0,
"is_explicited_referece":true,
"explicited_ref_count":2,
"enum_set_values": [
],
"is_lob_column":false
}
},
{
"column_id":17,
"table_id":1099511677779,
"column":"c4",
"auto_filled_timestamp":false,
"default_value": {
"NULL":"NULL"
},
"base_tid":1099511677779,
"base_cid":17,
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":17,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c4",
"expr_level":0,
"expr_levels": [
0
],
"column_flags":0,
"is_explicited_referece":true,
"explicited_ref_count":1,
"enum_set_values": [
],
"is_lob_column":false
}
}
],
"select": [
{
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"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":"c3",
"expr_name":"c3",
"default": {
"NULL":"NULL"
}
},
{
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":17,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c4",
"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":"c4",
"expr_name":"c4",
"default": {
"NULL":"NULL"
}
}
],
"distinct":false,
"rollup":false,
"nocycle":false,
"from": [
{
"table_id":1099511677779,
"is_join":false
}
],
"start_with": [
],
"connect_by": [
],
"where": [
{
"item_type":"T_OP_NSEQ",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":1,
"scale":0
},
"flag":1,
"calc_type": {
"type":"DECIMAL",
"collation":"binary",
"coercibility":"NUMERIC"
}
},
"expr_info": [
"CNT_CONST",
"CNT_COLUMN",
"CNT_STATIC_PARAM",
"IS_SIMPLE_COND"
],
"rel_id": [
1
],
"expr_levels": [
0
],
"children": [
{
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"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_QUESTIONMARK",
"result_type": {
"meta": {
"type":"DECIMAL",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":1,
"scale":0
},
"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
}
}
]
}
],
"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_TO_TYPE",
"result_type": {
"meta": {
"type":"DECIMAL",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":1,
"scale":0
},
"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_STATIC_PARAM",
"CNT_FUNC",
"CNT_CALCULABLE_EXPR"
],
"rel_id": [
],
"expr_levels": [
],
"func":"to_type",
"children": [
{
"item_type":"T_QUESTIONMARK",
"result_type": {
"meta": {
"type":"VARCHAR",
"collation":"utf8mb4_general_ci",
"coercibility":"COERCIBLE"
},
"accuracy": {
"length":1,
"precision":1,
"scale":-1
},
"flag":1,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_CONST",
"IS_STATIC_PARAM",
"CNT_CONST",
"CNT_STATIC_PARAM"
],
"rel_id": [
],
"value": {
"UNKNOWN":0
}
}
],
"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
}
*************** Case 8 ***************
select * from t3 where c3 is null;
{
"stmt_type":1,
"table": [
{
"table_id":1099511677779,
"table_name":"t3",
"alias_name":"",
"synonym_name":"",
"table_type":0,
"ref_id":1099511677779,
"database_name":"rongxuan",
"for_update":false,
"wait":-1,
"mock_id":-1,
"view_base_item":-1
}
],
"joined_table": [
],
"partition_express": [
],
"column": [
{
"column_id":16,
"table_id":1099511677779,
"column":"c3",
"auto_filled_timestamp":false,
"default_value": {
"NULL":"NULL"
},
"base_tid":1099511677779,
"base_cid":16,
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"expr_level":0,
"expr_levels": [
0
],
"column_flags":0,
"is_explicited_referece":true,
"explicited_ref_count":2,
"enum_set_values": [
],
"is_lob_column":false
}
},
{
"column_id":17,
"table_id":1099511677779,
"column":"c4",
"auto_filled_timestamp":false,
"default_value": {
"NULL":"NULL"
},
"base_tid":1099511677779,
"base_cid":17,
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":17,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c4",
"expr_level":0,
"expr_levels": [
0
],
"column_flags":0,
"is_explicited_referece":true,
"explicited_ref_count":1,
"enum_set_values": [
],
"is_lob_column":false
}
}
],
"select": [
{
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"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":"c3",
"expr_name":"c3",
"default": {
"NULL":"NULL"
}
},
{
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":17,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c4",
"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":"c4",
"expr_name":"c4",
"default": {
"NULL":"NULL"
}
}
],
"distinct":false,
"rollup":false,
"nocycle":false,
"from": [
{
"table_id":1099511677779,
"is_join":false
}
],
"start_with": [
],
"connect_by": [
],
"where": [
{
"item_type":"T_OP_IS",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":1,
"scale":0
},
"flag":1,
"calc_type": {
"type":"DECIMAL",
"collation":"binary",
"coercibility":"NUMERIC"
}
},
"expr_info": [
"IS_IS_EXPR",
"CNT_CONST",
"CNT_COLUMN",
"CNT_IS_EXPR"
],
"rel_id": [
1
],
"expr_levels": [
0
],
"children": [
{
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"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_NULL",
"result_type": {
"meta": {
"type":"NULL",
"collation":"binary",
"coercibility":"IGNORABLE"
},
"accuracy": {
"length":0,
"precision":-1,
"scale":-1
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_CONST",
"CNT_CONST"
],
"rel_id": [
],
"value": {
"NULL":"NULL"
}
},
{
"item_type":"T_BOOL",
"result_type": {
"meta": {
"type":"TINYINT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":-1,
"scale":-1
},
"flag":1,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_CONST",
"CNT_CONST"
],
"rel_id": [
],
"value": {
"TINYINT":0
}
}
]
}
],
"group_by": [
],
"having": [
],
"aggr_func": [
],
"order_by": [
],
"limit":null,
"offset":null,
"show_stmt_ctx": {
"is_from_show_stmt":false,
"global_scope":false,
"tenant_id":-1,
"show_database_id":-1,
"show_table_id":-1,
"grants_user_id":-1
},
"hint": {
"read_static":false,
"no_rewrite":false,
"frozen_version":-1,
"topk_precision":-1,
"sharding_minimum_row_count":0,
"query_timeout":-1,
"hotspot":false,
"index": [
],
"read_consistency":-1,
"join_ordered":false,
"join_order": [
],
"merge_hint_ids": [
],
"hash_hint_ids": [
],
"no_hash_hint_ids": [
],
"nl_hint_ids": [
],
"part_hints": [
],
"use_late_materialization":-1,
"log_level":"",
"max_concurrent":-1,
"only_concurrent_hint":false,
"has_hint_exclude_concurrent":false,
"parallel":-1,
"use_px":2,
"use join filter":false,
"org_pq_distributes": [
],
"pq_distributes": [
]
},
"query_context": {
"param_num":0,
"fetch_cur_time":true,
"calculable_items": [
]
},
"extra_output_exprs": [
],
"current_level":0,
"equal_sets": [
],
"pseudo_column_exprs": [
],
"child_stmts": [
],
"has_transformed_for_hierarchical_query":false,
"is_hierarchical_query":false
}
*************** Case 9 ***************
select * from t3 where c3 is false;
{
"stmt_type":1,
"table": [
{
"table_id":1099511677779,
"table_name":"t3",
"alias_name":"",
"synonym_name":"",
"table_type":0,
"ref_id":1099511677779,
"database_name":"rongxuan",
"for_update":false,
"wait":-1,
"mock_id":-1,
"view_base_item":-1
}
],
"joined_table": [
],
"partition_express": [
],
"column": [
{
"column_id":16,
"table_id":1099511677779,
"column":"c3",
"auto_filled_timestamp":false,
"default_value": {
"NULL":"NULL"
},
"base_tid":1099511677779,
"base_cid":16,
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"expr_level":0,
"expr_levels": [
0
],
"column_flags":0,
"is_explicited_referece":true,
"explicited_ref_count":2,
"enum_set_values": [
],
"is_lob_column":false
}
},
{
"column_id":17,
"table_id":1099511677779,
"column":"c4",
"auto_filled_timestamp":false,
"default_value": {
"NULL":"NULL"
},
"base_tid":1099511677779,
"base_cid":17,
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":17,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c4",
"expr_level":0,
"expr_levels": [
0
],
"column_flags":0,
"is_explicited_referece":true,
"explicited_ref_count":1,
"enum_set_values": [
],
"is_lob_column":false
}
}
],
"select": [
{
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"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":"c3",
"expr_name":"c3",
"default": {
"NULL":"NULL"
}
},
{
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":17,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c4",
"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":"c4",
"expr_name":"c4",
"default": {
"NULL":"NULL"
}
}
],
"distinct":false,
"rollup":false,
"nocycle":false,
"from": [
{
"table_id":1099511677779,
"is_join":false
}
],
"start_with": [
],
"connect_by": [
],
"where": [
{
"item_type":"T_OP_IS",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":1,
"scale":0
},
"flag":1,
"calc_type": {
"type":"DECIMAL",
"collation":"binary",
"coercibility":"NUMERIC"
}
},
"expr_info": [
"IS_IS_EXPR",
"CNT_CONST",
"CNT_COLUMN",
"CNT_IS_EXPR"
],
"rel_id": [
1
],
"expr_levels": [
0
],
"children": [
{
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"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_BOOL",
"result_type": {
"meta": {
"type":"TINYINT",
"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": {
"TINYINT":0
}
},
{
"item_type":"T_BOOL",
"result_type": {
"meta": {
"type":"TINYINT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":-1,
"scale":-1
},
"flag":1,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_CONST",
"CNT_CONST"
],
"rel_id": [
],
"value": {
"TINYINT":0
}
}
]
}
],
"group_by": [
],
"having": [
],
"aggr_func": [
],
"order_by": [
],
"limit":null,
"offset":null,
"show_stmt_ctx": {
"is_from_show_stmt":false,
"global_scope":false,
"tenant_id":-1,
"show_database_id":-1,
"show_table_id":-1,
"grants_user_id":-1
},
"hint": {
"read_static":false,
"no_rewrite":false,
"frozen_version":-1,
"topk_precision":-1,
"sharding_minimum_row_count":0,
"query_timeout":-1,
"hotspot":false,
"index": [
],
"read_consistency":-1,
"join_ordered":false,
"join_order": [
],
"merge_hint_ids": [
],
"hash_hint_ids": [
],
"no_hash_hint_ids": [
],
"nl_hint_ids": [
],
"part_hints": [
],
"use_late_materialization":-1,
"log_level":"",
"max_concurrent":-1,
"only_concurrent_hint":false,
"has_hint_exclude_concurrent":false,
"parallel":-1,
"use_px":2,
"use join filter":false,
"org_pq_distributes": [
],
"pq_distributes": [
]
},
"query_context": {
"param_num":0,
"fetch_cur_time":true,
"calculable_items": [
]
},
"extra_output_exprs": [
],
"current_level":0,
"equal_sets": [
],
"pseudo_column_exprs": [
],
"child_stmts": [
],
"has_transformed_for_hierarchical_query":false,
"is_hierarchical_query":false
}
*************** Case 10 ***************
select * from t3 where c3 is true;
{
"stmt_type":1,
"table": [
{
"table_id":1099511677779,
"table_name":"t3",
"alias_name":"",
"synonym_name":"",
"table_type":0,
"ref_id":1099511677779,
"database_name":"rongxuan",
"for_update":false,
"wait":-1,
"mock_id":-1,
"view_base_item":-1
}
],
"joined_table": [
],
"partition_express": [
],
"column": [
{
"column_id":16,
"table_id":1099511677779,
"column":"c3",
"auto_filled_timestamp":false,
"default_value": {
"NULL":"NULL"
},
"base_tid":1099511677779,
"base_cid":16,
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"expr_level":0,
"expr_levels": [
0
],
"column_flags":0,
"is_explicited_referece":true,
"explicited_ref_count":2,
"enum_set_values": [
],
"is_lob_column":false
}
},
{
"column_id":17,
"table_id":1099511677779,
"column":"c4",
"auto_filled_timestamp":false,
"default_value": {
"NULL":"NULL"
},
"base_tid":1099511677779,
"base_cid":17,
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":17,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c4",
"expr_level":0,
"expr_levels": [
0
],
"column_flags":0,
"is_explicited_referece":true,
"explicited_ref_count":1,
"enum_set_values": [
],
"is_lob_column":false
}
}
],
"select": [
{
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"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":"c3",
"expr_name":"c3",
"default": {
"NULL":"NULL"
}
},
{
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":17,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c4",
"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":"c4",
"expr_name":"c4",
"default": {
"NULL":"NULL"
}
}
],
"distinct":false,
"rollup":false,
"nocycle":false,
"from": [
{
"table_id":1099511677779,
"is_join":false
}
],
"start_with": [
],
"connect_by": [
],
"where": [
{
"item_type":"T_OP_IS",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":1,
"scale":0
},
"flag":1,
"calc_type": {
"type":"DECIMAL",
"collation":"binary",
"coercibility":"NUMERIC"
}
},
"expr_info": [
"IS_IS_EXPR",
"CNT_CONST",
"CNT_COLUMN",
"CNT_IS_EXPR"
],
"rel_id": [
1
],
"expr_levels": [
0
],
"children": [
{
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"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_BOOL",
"result_type": {
"meta": {
"type":"TINYINT",
"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": {
"TINYINT":1
}
},
{
"item_type":"T_BOOL",
"result_type": {
"meta": {
"type":"TINYINT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":-1,
"scale":-1
},
"flag":1,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_CONST",
"CNT_CONST"
],
"rel_id": [
],
"value": {
"TINYINT":0
}
}
]
}
],
"group_by": [
],
"having": [
],
"aggr_func": [
],
"order_by": [
],
"limit":null,
"offset":null,
"show_stmt_ctx": {
"is_from_show_stmt":false,
"global_scope":false,
"tenant_id":-1,
"show_database_id":-1,
"show_table_id":-1,
"grants_user_id":-1
},
"hint": {
"read_static":false,
"no_rewrite":false,
"frozen_version":-1,
"topk_precision":-1,
"sharding_minimum_row_count":0,
"query_timeout":-1,
"hotspot":false,
"index": [
],
"read_consistency":-1,
"join_ordered":false,
"join_order": [
],
"merge_hint_ids": [
],
"hash_hint_ids": [
],
"no_hash_hint_ids": [
],
"nl_hint_ids": [
],
"part_hints": [
],
"use_late_materialization":-1,
"log_level":"",
"max_concurrent":-1,
"only_concurrent_hint":false,
"has_hint_exclude_concurrent":false,
"parallel":-1,
"use_px":2,
"use join filter":false,
"org_pq_distributes": [
],
"pq_distributes": [
]
},
"query_context": {
"param_num":0,
"fetch_cur_time":true,
"calculable_items": [
]
},
"extra_output_exprs": [
],
"current_level":0,
"equal_sets": [
],
"pseudo_column_exprs": [
],
"child_stmts": [
],
"has_transformed_for_hierarchical_query":false,
"is_hierarchical_query":false
}
*************** Case 11 ***************
select * from t3 where c3+'2'>'1';
{
"stmt_type":1,
"table": [
{
"table_id":1099511677779,
"table_name":"t3",
"alias_name":"",
"synonym_name":"",
"table_type":0,
"ref_id":1099511677779,
"database_name":"rongxuan",
"for_update":false,
"wait":-1,
"mock_id":-1,
"view_base_item":-1
}
],
"joined_table": [
],
"partition_express": [
],
"column": [
{
"column_id":16,
"table_id":1099511677779,
"column":"c3",
"auto_filled_timestamp":false,
"default_value": {
"NULL":"NULL"
},
"base_tid":1099511677779,
"base_cid":16,
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"expr_level":0,
"expr_levels": [
0
],
"column_flags":0,
"is_explicited_referece":true,
"explicited_ref_count":2,
"enum_set_values": [
],
"is_lob_column":false
}
},
{
"column_id":17,
"table_id":1099511677779,
"column":"c4",
"auto_filled_timestamp":false,
"default_value": {
"NULL":"NULL"
},
"base_tid":1099511677779,
"base_cid":17,
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":17,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c4",
"expr_level":0,
"expr_levels": [
0
],
"column_flags":0,
"is_explicited_referece":true,
"explicited_ref_count":1,
"enum_set_values": [
],
"is_lob_column":false
}
}
],
"select": [
{
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"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":"c3",
"expr_name":"c3",
"default": {
"NULL":"NULL"
}
},
{
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":17,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c4",
"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":"c4",
"expr_name":"c4",
"default": {
"NULL":"NULL"
}
}
],
"distinct":false,
"rollup":false,
"nocycle":false,
"from": [
{
"table_id":1099511677779,
"is_join":false
}
],
"start_with": [
],
"connect_by": [
],
"where": [
{
"item_type":"T_OP_GT",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":1,
"scale":0
},
"flag":1,
"calc_type": {
"type":"DOUBLE",
"collation":"binary",
"coercibility":"NUMERIC"
}
},
"expr_info": [
"CNT_CONST",
"CNT_COLUMN",
"CNT_STATIC_PARAM"
],
"rel_id": [
1
],
"expr_levels": [
0
],
"children": [
{
"item_type":"T_OP_ADD",
"result_type": {
"meta": {
"type":"DOUBLE",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":-1,
"scale":-1
},
"flag":1,
"calc_type": {
"type":"DOUBLE",
"collation":"binary",
"coercibility":"NUMERIC"
}
},
"expr_info": [
"CNT_CONST",
"CNT_COLUMN",
"CNT_STATIC_PARAM"
],
"rel_id": [
1
],
"expr_levels": [
0
],
"children": [
{
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"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_QUESTIONMARK",
"result_type": {
"meta": {
"type":"DOUBLE",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":-1,
"scale":-1
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_CONST",
"IS_STATIC_PARAM",
"CNT_CONST",
"CNT_STATIC_PARAM",
"IS_DYNAMIC_PARAM"
],
"rel_id": [
],
"value": {
"UNKNOWN":2
}
}
]
},
{
"item_type":"T_QUESTIONMARK",
"result_type": {
"meta": {
"type":"DOUBLE",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":-1,
"scale":-1
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_CONST",
"IS_STATIC_PARAM",
"CNT_CONST",
"CNT_STATIC_PARAM",
"IS_DYNAMIC_PARAM"
],
"rel_id": [
],
"value": {
"UNKNOWN":3
}
}
]
}
],
"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":4,
"fetch_cur_time":true,
"calculable_items": [
{
"expression": {
"item_type":"T_FUN_SYS_TO_TYPE",
"result_type": {
"meta": {
"type":"DOUBLE",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":-1,
"scale":-1
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_CONST",
"IS_FUNC",
"IS_CALCULABLE_EXPR",
"IS_CONST_EXPR",
"CNT_CONST",
"CNT_STATIC_PARAM",
"CNT_FUNC",
"CNT_CALCULABLE_EXPR"
],
"rel_id": [
],
"expr_levels": [
],
"func":"to_type",
"children": [
{
"item_type":"T_QUESTIONMARK",
"result_type": {
"meta": {
"type":"VARCHAR",
"collation":"utf8mb4_general_ci",
"coercibility":"COERCIBLE"
},
"accuracy": {
"length":1,
"precision":1,
"scale":-1
},
"flag":1,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_CONST",
"IS_STATIC_PARAM",
"CNT_CONST",
"CNT_STATIC_PARAM"
],
"rel_id": [
],
"value": {
"UNKNOWN":0
}
}
],
"enum_set_values": [
]
},
"idx":2
},
{
"expression": {
"item_type":"T_FUN_SYS_TO_TYPE",
"result_type": {
"meta": {
"type":"DOUBLE",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":-1,
"scale":-1
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_CONST",
"IS_FUNC",
"IS_CALCULABLE_EXPR",
"IS_CONST_EXPR",
"CNT_CONST",
"CNT_STATIC_PARAM",
"CNT_FUNC",
"CNT_CALCULABLE_EXPR"
],
"rel_id": [
],
"expr_levels": [
],
"func":"to_type",
"children": [
{
"item_type":"T_QUESTIONMARK",
"result_type": {
"meta": {
"type":"VARCHAR",
"collation":"utf8mb4_general_ci",
"coercibility":"COERCIBLE"
},
"accuracy": {
"length":1,
"precision":1,
"scale":-1
},
"flag":1,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_CONST",
"IS_STATIC_PARAM",
"CNT_CONST",
"CNT_STATIC_PARAM"
],
"rel_id": [
],
"value": {
"UNKNOWN":1
}
}
],
"enum_set_values": [
]
},
"idx":3
}
]
},
"extra_output_exprs": [
],
"current_level":0,
"equal_sets": [
],
"pseudo_column_exprs": [
],
"child_stmts": [
],
"has_transformed_for_hierarchical_query":false,
"is_hierarchical_query":false
}
*************** Case 12 ***************
select * from t3 where c3-'2'>'1';
{
"stmt_type":1,
"table": [
{
"table_id":1099511677779,
"table_name":"t3",
"alias_name":"",
"synonym_name":"",
"table_type":0,
"ref_id":1099511677779,
"database_name":"rongxuan",
"for_update":false,
"wait":-1,
"mock_id":-1,
"view_base_item":-1
}
],
"joined_table": [
],
"partition_express": [
],
"column": [
{
"column_id":16,
"table_id":1099511677779,
"column":"c3",
"auto_filled_timestamp":false,
"default_value": {
"NULL":"NULL"
},
"base_tid":1099511677779,
"base_cid":16,
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"expr_level":0,
"expr_levels": [
0
],
"column_flags":0,
"is_explicited_referece":true,
"explicited_ref_count":2,
"enum_set_values": [
],
"is_lob_column":false
}
},
{
"column_id":17,
"table_id":1099511677779,
"column":"c4",
"auto_filled_timestamp":false,
"default_value": {
"NULL":"NULL"
},
"base_tid":1099511677779,
"base_cid":17,
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":17,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c4",
"expr_level":0,
"expr_levels": [
0
],
"column_flags":0,
"is_explicited_referece":true,
"explicited_ref_count":1,
"enum_set_values": [
],
"is_lob_column":false
}
}
],
"select": [
{
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"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":"c3",
"expr_name":"c3",
"default": {
"NULL":"NULL"
}
},
{
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":17,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c4",
"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":"c4",
"expr_name":"c4",
"default": {
"NULL":"NULL"
}
}
],
"distinct":false,
"rollup":false,
"nocycle":false,
"from": [
{
"table_id":1099511677779,
"is_join":false
}
],
"start_with": [
],
"connect_by": [
],
"where": [
{
"item_type":"T_OP_GT",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":1,
"scale":0
},
"flag":1,
"calc_type": {
"type":"DOUBLE",
"collation":"binary",
"coercibility":"NUMERIC"
}
},
"expr_info": [
"CNT_CONST",
"CNT_COLUMN",
"CNT_STATIC_PARAM"
],
"rel_id": [
1
],
"expr_levels": [
0
],
"children": [
{
"item_type":"T_OP_MINUS",
"result_type": {
"meta": {
"type":"DOUBLE",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":-1,
"scale":-1
},
"flag":1,
"calc_type": {
"type":"DOUBLE",
"collation":"binary",
"coercibility":"NUMERIC"
}
},
"expr_info": [
"CNT_CONST",
"CNT_COLUMN",
"CNT_STATIC_PARAM"
],
"rel_id": [
1
],
"expr_levels": [
0
],
"children": [
{
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"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_QUESTIONMARK",
"result_type": {
"meta": {
"type":"DOUBLE",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":-1,
"scale":-1
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_CONST",
"IS_STATIC_PARAM",
"CNT_CONST",
"CNT_STATIC_PARAM",
"IS_DYNAMIC_PARAM"
],
"rel_id": [
],
"value": {
"UNKNOWN":2
}
}
]
},
{
"item_type":"T_QUESTIONMARK",
"result_type": {
"meta": {
"type":"DOUBLE",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":-1,
"scale":-1
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_CONST",
"IS_STATIC_PARAM",
"CNT_CONST",
"CNT_STATIC_PARAM",
"IS_DYNAMIC_PARAM"
],
"rel_id": [
],
"value": {
"UNKNOWN":3
}
}
]
}
],
"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":4,
"fetch_cur_time":true,
"calculable_items": [
{
"expression": {
"item_type":"T_FUN_SYS_TO_TYPE",
"result_type": {
"meta": {
"type":"DOUBLE",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":-1,
"scale":-1
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_CONST",
"IS_FUNC",
"IS_CALCULABLE_EXPR",
"IS_CONST_EXPR",
"CNT_CONST",
"CNT_STATIC_PARAM",
"CNT_FUNC",
"CNT_CALCULABLE_EXPR"
],
"rel_id": [
],
"expr_levels": [
],
"func":"to_type",
"children": [
{
"item_type":"T_QUESTIONMARK",
"result_type": {
"meta": {
"type":"VARCHAR",
"collation":"utf8mb4_general_ci",
"coercibility":"COERCIBLE"
},
"accuracy": {
"length":1,
"precision":1,
"scale":-1
},
"flag":1,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_CONST",
"IS_STATIC_PARAM",
"CNT_CONST",
"CNT_STATIC_PARAM"
],
"rel_id": [
],
"value": {
"UNKNOWN":0
}
}
],
"enum_set_values": [
]
},
"idx":2
},
{
"expression": {
"item_type":"T_FUN_SYS_TO_TYPE",
"result_type": {
"meta": {
"type":"DOUBLE",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":-1,
"scale":-1
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_CONST",
"IS_FUNC",
"IS_CALCULABLE_EXPR",
"IS_CONST_EXPR",
"CNT_CONST",
"CNT_STATIC_PARAM",
"CNT_FUNC",
"CNT_CALCULABLE_EXPR"
],
"rel_id": [
],
"expr_levels": [
],
"func":"to_type",
"children": [
{
"item_type":"T_QUESTIONMARK",
"result_type": {
"meta": {
"type":"VARCHAR",
"collation":"utf8mb4_general_ci",
"coercibility":"COERCIBLE"
},
"accuracy": {
"length":1,
"precision":1,
"scale":-1
},
"flag":1,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_CONST",
"IS_STATIC_PARAM",
"CNT_CONST",
"CNT_STATIC_PARAM"
],
"rel_id": [
],
"value": {
"UNKNOWN":1
}
}
],
"enum_set_values": [
]
},
"idx":3
}
]
},
"extra_output_exprs": [
],
"current_level":0,
"equal_sets": [
],
"pseudo_column_exprs": [
],
"child_stmts": [
],
"has_transformed_for_hierarchical_query":false,
"is_hierarchical_query":false
}
*************** Case 13 ***************
select * from t3 where c3*'2'>'1';
{
"stmt_type":1,
"table": [
{
"table_id":1099511677779,
"table_name":"t3",
"alias_name":"",
"synonym_name":"",
"table_type":0,
"ref_id":1099511677779,
"database_name":"rongxuan",
"for_update":false,
"wait":-1,
"mock_id":-1,
"view_base_item":-1
}
],
"joined_table": [
],
"partition_express": [
],
"column": [
{
"column_id":16,
"table_id":1099511677779,
"column":"c3",
"auto_filled_timestamp":false,
"default_value": {
"NULL":"NULL"
},
"base_tid":1099511677779,
"base_cid":16,
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"expr_level":0,
"expr_levels": [
0
],
"column_flags":0,
"is_explicited_referece":true,
"explicited_ref_count":2,
"enum_set_values": [
],
"is_lob_column":false
}
},
{
"column_id":17,
"table_id":1099511677779,
"column":"c4",
"auto_filled_timestamp":false,
"default_value": {
"NULL":"NULL"
},
"base_tid":1099511677779,
"base_cid":17,
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":17,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c4",
"expr_level":0,
"expr_levels": [
0
],
"column_flags":0,
"is_explicited_referece":true,
"explicited_ref_count":1,
"enum_set_values": [
],
"is_lob_column":false
}
}
],
"select": [
{
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"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":"c3",
"expr_name":"c3",
"default": {
"NULL":"NULL"
}
},
{
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":17,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c4",
"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":"c4",
"expr_name":"c4",
"default": {
"NULL":"NULL"
}
}
],
"distinct":false,
"rollup":false,
"nocycle":false,
"from": [
{
"table_id":1099511677779,
"is_join":false
}
],
"start_with": [
],
"connect_by": [
],
"where": [
{
"item_type":"T_OP_GT",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":1,
"scale":0
},
"flag":1,
"calc_type": {
"type":"DOUBLE",
"collation":"binary",
"coercibility":"NUMERIC"
}
},
"expr_info": [
"CNT_CONST",
"CNT_COLUMN",
"CNT_STATIC_PARAM"
],
"rel_id": [
1
],
"expr_levels": [
0
],
"children": [
{
"item_type":"T_OP_MUL",
"result_type": {
"meta": {
"type":"DOUBLE",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":-1
},
"flag":1,
"calc_type": {
"type":"DOUBLE",
"collation":"binary",
"coercibility":"NUMERIC"
}
},
"expr_info": [
"CNT_CONST",
"CNT_COLUMN",
"CNT_STATIC_PARAM"
],
"rel_id": [
1
],
"expr_levels": [
0
],
"children": [
{
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"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_QUESTIONMARK",
"result_type": {
"meta": {
"type":"DOUBLE",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":-1,
"scale":-1
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_CONST",
"IS_STATIC_PARAM",
"CNT_CONST",
"CNT_STATIC_PARAM",
"IS_DYNAMIC_PARAM"
],
"rel_id": [
],
"value": {
"UNKNOWN":2
}
}
]
},
{
"item_type":"T_QUESTIONMARK",
"result_type": {
"meta": {
"type":"DOUBLE",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":-1,
"scale":-1
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_CONST",
"IS_STATIC_PARAM",
"CNT_CONST",
"CNT_STATIC_PARAM",
"IS_DYNAMIC_PARAM"
],
"rel_id": [
],
"value": {
"UNKNOWN":3
}
}
]
}
],
"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":4,
"fetch_cur_time":true,
"calculable_items": [
{
"expression": {
"item_type":"T_FUN_SYS_TO_TYPE",
"result_type": {
"meta": {
"type":"DOUBLE",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":-1,
"scale":-1
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_CONST",
"IS_FUNC",
"IS_CALCULABLE_EXPR",
"IS_CONST_EXPR",
"CNT_CONST",
"CNT_STATIC_PARAM",
"CNT_FUNC",
"CNT_CALCULABLE_EXPR"
],
"rel_id": [
],
"expr_levels": [
],
"func":"to_type",
"children": [
{
"item_type":"T_QUESTIONMARK",
"result_type": {
"meta": {
"type":"VARCHAR",
"collation":"utf8mb4_general_ci",
"coercibility":"COERCIBLE"
},
"accuracy": {
"length":1,
"precision":1,
"scale":-1
},
"flag":1,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_CONST",
"IS_STATIC_PARAM",
"CNT_CONST",
"CNT_STATIC_PARAM"
],
"rel_id": [
],
"value": {
"UNKNOWN":0
}
}
],
"enum_set_values": [
]
},
"idx":2
},
{
"expression": {
"item_type":"T_FUN_SYS_TO_TYPE",
"result_type": {
"meta": {
"type":"DOUBLE",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":-1,
"scale":-1
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_CONST",
"IS_FUNC",
"IS_CALCULABLE_EXPR",
"IS_CONST_EXPR",
"CNT_CONST",
"CNT_STATIC_PARAM",
"CNT_FUNC",
"CNT_CALCULABLE_EXPR"
],
"rel_id": [
],
"expr_levels": [
],
"func":"to_type",
"children": [
{
"item_type":"T_QUESTIONMARK",
"result_type": {
"meta": {
"type":"VARCHAR",
"collation":"utf8mb4_general_ci",
"coercibility":"COERCIBLE"
},
"accuracy": {
"length":1,
"precision":1,
"scale":-1
},
"flag":1,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_CONST",
"IS_STATIC_PARAM",
"CNT_CONST",
"CNT_STATIC_PARAM"
],
"rel_id": [
],
"value": {
"UNKNOWN":1
}
}
],
"enum_set_values": [
]
},
"idx":3
}
]
},
"extra_output_exprs": [
],
"current_level":0,
"equal_sets": [
],
"pseudo_column_exprs": [
],
"child_stmts": [
],
"has_transformed_for_hierarchical_query":false,
"is_hierarchical_query":false
}
*************** Case 14 ***************
select * from t3 where c3/'2'>'1';
{
"stmt_type":1,
"table": [
{
"table_id":1099511677779,
"table_name":"t3",
"alias_name":"",
"synonym_name":"",
"table_type":0,
"ref_id":1099511677779,
"database_name":"rongxuan",
"for_update":false,
"wait":-1,
"mock_id":-1,
"view_base_item":-1
}
],
"joined_table": [
],
"partition_express": [
],
"column": [
{
"column_id":16,
"table_id":1099511677779,
"column":"c3",
"auto_filled_timestamp":false,
"default_value": {
"NULL":"NULL"
},
"base_tid":1099511677779,
"base_cid":16,
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"expr_level":0,
"expr_levels": [
0
],
"column_flags":0,
"is_explicited_referece":true,
"explicited_ref_count":2,
"enum_set_values": [
],
"is_lob_column":false
}
},
{
"column_id":17,
"table_id":1099511677779,
"column":"c4",
"auto_filled_timestamp":false,
"default_value": {
"NULL":"NULL"
},
"base_tid":1099511677779,
"base_cid":17,
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":17,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c4",
"expr_level":0,
"expr_levels": [
0
],
"column_flags":0,
"is_explicited_referece":true,
"explicited_ref_count":1,
"enum_set_values": [
],
"is_lob_column":false
}
}
],
"select": [
{
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"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":"c3",
"expr_name":"c3",
"default": {
"NULL":"NULL"
}
},
{
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":17,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c4",
"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":"c4",
"expr_name":"c4",
"default": {
"NULL":"NULL"
}
}
],
"distinct":false,
"rollup":false,
"nocycle":false,
"from": [
{
"table_id":1099511677779,
"is_join":false
}
],
"start_with": [
],
"connect_by": [
],
"where": [
{
"item_type":"T_OP_GT",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":1,
"scale":0
},
"flag":0,
"calc_type": {
"type":"DOUBLE",
"collation":"binary",
"coercibility":"NUMERIC"
}
},
"expr_info": [
"CNT_CONST",
"CNT_COLUMN",
"CNT_STATIC_PARAM"
],
"rel_id": [
1
],
"expr_levels": [
0
],
"children": [
{
"item_type":"T_OP_DIV",
"result_type": {
"meta": {
"type":"DOUBLE",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":15,
"scale":-1
},
"flag":0,
"calc_type": {
"type":"DOUBLE",
"collation":"binary",
"coercibility":"NUMERIC"
}
},
"expr_info": [
"CNT_CONST",
"CNT_COLUMN",
"CNT_STATIC_PARAM"
],
"rel_id": [
1
],
"expr_levels": [
0
],
"children": [
{
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"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_QUESTIONMARK",
"result_type": {
"meta": {
"type":"DOUBLE",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":-1,
"scale":-1
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_CONST",
"IS_STATIC_PARAM",
"CNT_CONST",
"CNT_STATIC_PARAM",
"IS_DYNAMIC_PARAM"
],
"rel_id": [
],
"value": {
"UNKNOWN":2
}
}
]
},
{
"item_type":"T_QUESTIONMARK",
"result_type": {
"meta": {
"type":"DOUBLE",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":-1,
"scale":-1
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_CONST",
"IS_STATIC_PARAM",
"CNT_CONST",
"CNT_STATIC_PARAM",
"IS_DYNAMIC_PARAM"
],
"rel_id": [
],
"value": {
"UNKNOWN":3
}
}
]
}
],
"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":4,
"fetch_cur_time":true,
"calculable_items": [
{
"expression": {
"item_type":"T_FUN_SYS_TO_TYPE",
"result_type": {
"meta": {
"type":"DOUBLE",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":-1,
"scale":-1
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_CONST",
"IS_FUNC",
"IS_CALCULABLE_EXPR",
"IS_CONST_EXPR",
"CNT_CONST",
"CNT_STATIC_PARAM",
"CNT_FUNC",
"CNT_CALCULABLE_EXPR"
],
"rel_id": [
],
"expr_levels": [
],
"func":"to_type",
"children": [
{
"item_type":"T_QUESTIONMARK",
"result_type": {
"meta": {
"type":"VARCHAR",
"collation":"utf8mb4_general_ci",
"coercibility":"COERCIBLE"
},
"accuracy": {
"length":1,
"precision":1,
"scale":-1
},
"flag":1,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_CONST",
"IS_STATIC_PARAM",
"CNT_CONST",
"CNT_STATIC_PARAM"
],
"rel_id": [
],
"value": {
"UNKNOWN":0
}
}
],
"enum_set_values": [
]
},
"idx":2
},
{
"expression": {
"item_type":"T_FUN_SYS_TO_TYPE",
"result_type": {
"meta": {
"type":"DOUBLE",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":-1,
"scale":-1
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_CONST",
"IS_FUNC",
"IS_CALCULABLE_EXPR",
"IS_CONST_EXPR",
"CNT_CONST",
"CNT_STATIC_PARAM",
"CNT_FUNC",
"CNT_CALCULABLE_EXPR"
],
"rel_id": [
],
"expr_levels": [
],
"func":"to_type",
"children": [
{
"item_type":"T_QUESTIONMARK",
"result_type": {
"meta": {
"type":"VARCHAR",
"collation":"utf8mb4_general_ci",
"coercibility":"COERCIBLE"
},
"accuracy": {
"length":1,
"precision":1,
"scale":-1
},
"flag":1,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_CONST",
"IS_STATIC_PARAM",
"CNT_CONST",
"CNT_STATIC_PARAM"
],
"rel_id": [
],
"value": {
"UNKNOWN":1
}
}
],
"enum_set_values": [
]
},
"idx":3
}
]
},
"extra_output_exprs": [
],
"current_level":0,
"equal_sets": [
],
"pseudo_column_exprs": [
],
"child_stmts": [
],
"has_transformed_for_hierarchical_query":false,
"is_hierarchical_query":false
}
*************** Case 15 ***************
select * from t3 where length(concat(c3, '2'))>'1';
{
"stmt_type":1,
"table": [
{
"table_id":1099511677779,
"table_name":"t3",
"alias_name":"",
"synonym_name":"",
"table_type":0,
"ref_id":1099511677779,
"database_name":"rongxuan",
"for_update":false,
"wait":-1,
"mock_id":-1,
"view_base_item":-1
}
],
"joined_table": [
],
"partition_express": [
],
"column": [
{
"column_id":16,
"table_id":1099511677779,
"column":"c3",
"auto_filled_timestamp":false,
"default_value": {
"NULL":"NULL"
},
"base_tid":1099511677779,
"base_cid":16,
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"expr_level":0,
"expr_levels": [
0
],
"column_flags":0,
"is_explicited_referece":true,
"explicited_ref_count":2,
"enum_set_values": [
],
"is_lob_column":false
}
},
{
"column_id":17,
"table_id":1099511677779,
"column":"c4",
"auto_filled_timestamp":false,
"default_value": {
"NULL":"NULL"
},
"base_tid":1099511677779,
"base_cid":17,
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":17,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c4",
"expr_level":0,
"expr_levels": [
0
],
"column_flags":0,
"is_explicited_referece":true,
"explicited_ref_count":1,
"enum_set_values": [
],
"is_lob_column":false
}
}
],
"select": [
{
"expression": {
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
1
],
"table_id":1099511677779,
"column_id":16,
"database_name":"rongxuan",
"table_name":"t3",
"synonym_name":"",
"column_name":"c3",
"expr_level":0,
"expr_levels": [
0
],
"column_flags":0,
"is_explicited_referece":true,
"explicited_ref_count":2,
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