Query time 0.00092
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "33.04"
},
"grouping_operation": {
"using_filesort": false,
"nested_loop": [
{
"table": {
"table_name": "cscart_products_categories",
"access_type": "range",
"possible_keys": [
"PRIMARY",
"link_type",
"pt"
],
"key": "pt",
"used_key_parts": [
"product_id"
],
"key_length": "3",
"rows_examined_per_scan": 20,
"rows_produced_per_join": 20,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "5.04",
"eval_cost": "4.00",
"prefix_cost": "9.04",
"data_read_per_join": "320"
},
"used_columns": [
"product_id",
"category_id",
"link_type"
],
"attached_condition": "(`webmarco`.`cscart_products_categories`.`product_id` in (262428,262429,262440,262437,262430,262436,262434,262432,262441,371820,262438,262435,262439,265003,371795,372036,265004,372031,379721,372033))"
}
},
{
"table": {
"table_name": "cscart_categories",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY",
"c_status",
"p_category_id"
],
"key": "PRIMARY",
"used_key_parts": [
"category_id"
],
"key_length": "3",
"ref": [
"webmarco.cscart_products_categories.category_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 1,
"filtered": "5.00",
"cost_info": {
"read_cost": "20.00",
"eval_cost": "0.20",
"prefix_cost": "33.04",
"data_read_per_join": "5K"
},
"used_columns": [
"category_id",
"usergroup_ids",
"status",
"storefront_id"
],
"attached_condition": "((`webmarco`.`cscart_categories`.`storefront_id` in (0,1)) and ((`webmarco`.`cscart_categories`.`usergroup_ids` = '') or find_in_set(0,`webmarco`.`cscart_categories`.`usergroup_ids`) or find_in_set(1,`webmarco`.`cscart_categories`.`usergroup_ids`)) and (`webmarco`.`cscart_categories`.`status` in ('A','H')))"
}
}
]
}
}
}
Result
product_id |
category_ids |
262428 |
9921M |
262429 |
9921M |
262430 |
9921M |
262432 |
9940M |
262434 |
9921M |
262435 |
9921M |
262436 |
9921M |
262437 |
9922M |
262438 |
9922M |
262439 |
9922M |
262440 |
9941M |
262441 |
9922M |
265003 |
9921M |
265004 |
9921M |
371795 |
10396M |
371820 |
10396M |
372031 |
10396M |
372033 |
10396M |
372036 |
10396M |
379721 |
10396M |