{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "7.82"
},
"table": {
"table_name": "cscart_categories",
"access_type": "range",
"possible_keys": [
"parent"
],
"key": "parent",
"used_key_parts": [
"parent_id"
],
"key_length": "3",
"rows_examined_per_scan": 17,
"rows_produced_per_join": 17,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "4.42",
"eval_cost": "3.40",
"prefix_cost": "7.82",
"data_read_per_join": "100K"
},
"used_columns": [
"category_id",
"parent_id"
],
"attached_condition": "(`webmarco`.`cscart_categories`.`parent_id` in (4892,4998,5008,5025,5036,4902,5061,5073,5083,5093,5108,4941,4958,4978))"
}
}
}
category_id | parent_id |
---|---|
4902 | 4892 |
4941 | 4892 |
4958 | 4892 |
4978 | 4892 |