Query time 0.00102
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "29.22"
},
"nested_loop": [
{
"table": {
"table_name": "c",
"access_type": "ALL",
"rows_examined_per_scan": 115,
"rows_produced_per_join": 0,
"filtered": "0.87",
"cost_info": {
"read_cost": "27.82",
"eval_cost": "0.20",
"prefix_cost": "28.02",
"data_read_per_join": "2K"
},
"used_columns": [
"category_id",
"parent_id",
"id_path",
"level",
"company_id",
"status"
],
"attached_condition": "((`eshopuga_upgr_4122`.`c`.`company_id` = 1) and (`eshopuga_upgr_4122`.`c`.`id_path` like '%447%') and (`eshopuga_upgr_4122`.`c`.`status` = 'A'))"
}
},
{
"table": {
"table_name": "sm",
"access_type": "ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"category_id"
],
"key_length": "3",
"ref": [
"eshopuga_upgr_4122.c.category_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 0,
"filtered": "100.00",
"cost_info": {
"read_cost": "1.00",
"eval_cost": "0.20",
"prefix_cost": "29.22",
"data_read_per_join": "31"
},
"used_columns": [
"category_id",
"lang_code",
"search_phrases"
],
"attached_condition": "(<if>(found_match(sm), ((`eshopuga_upgr_4122`.`sm`.`search_phrases` <> 'NULL') or (`eshopuga_upgr_4122`.`c`.`level` = (/* select#2 */ select '2' from `eshopuga_upgr_4122`.`cscart_categories` where 1))), true) and <if>(is_not_null_compl(sm), (`eshopuga_upgr_4122`.`sm`.`lang_code` = 'es'), true))",
"attached_subqueries": [
{
"dependent": false,
"cacheable": true,
"query_block": {
"select_id": 2,
"cost_info": {
"query_cost": "1.00"
},
"table": {
"table_name": "cscart_categories",
"access_type": "const",
"possible_keys": [
"PRIMARY",
"p_category_id"
],
"key": "PRIMARY",
"used_key_parts": [
"category_id"
],
"key_length": "3",
"ref": [
"const"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 1,
"filtered": "100.00",
"cost_info": {
"read_cost": "0.00",
"eval_cost": "0.20",
"prefix_cost": "0.00",
"data_read_per_join": "2K"
},
"used_columns": [
"category_id",
"level"
]
}
}
}
]
}
}
]
}
}
Result
parent_id |
search_phrases |
category_id |
333 |
|
447 |