Query time 0.00080
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "8.41"
},
"grouping_operation": {
"using_filesort": false,
"nested_loop": [
{
"table": {
"table_name": "cscart_products_categories",
"access_type": "range",
"possible_keys": [
"PRIMARY",
"pt"
],
"key": "pt",
"used_key_parts": [
"product_id"
],
"key_length": "3",
"rows_examined_per_scan": 8,
"rows_produced_per_join": 8,
"filtered": "100.00",
"index_condition": "(`s2cart`.`cscart_products_categories`.`product_id` in (243684,51603,119291,275040,277987,277101,275765,277911))",
"cost_info": {
"read_cost": "4.81",
"eval_cost": "0.80",
"prefix_cost": "5.61",
"data_read_per_join": "128"
},
"used_columns": [
"product_id",
"category_id",
"link_type"
]
}
},
{
"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": [
"s2cart.cscart_products_categories.category_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 0,
"filtered": "5.00",
"cost_info": {
"read_cost": "2.00",
"eval_cost": "0.04",
"prefix_cost": "8.41",
"data_read_per_join": "1K"
},
"used_columns": [
"category_id",
"usergroup_ids",
"status",
"storefront_id"
],
"attached_condition": "((`s2cart`.`cscart_categories`.`storefront_id` in (0,1)) and ((`s2cart`.`cscart_categories`.`usergroup_ids` = '') or (0 <> find_in_set(0,`s2cart`.`cscart_categories`.`usergroup_ids`)) or (0 <> find_in_set(1,`s2cart`.`cscart_categories`.`usergroup_ids`))) and (`s2cart`.`cscart_categories`.`status` in ('A','H')))"
}
}
]
}
}
}
Result
product_id |
category_ids |
51603 |
892M |
119291 |
1616M |
243684 |
3165M |
275040 |
2936M |
275765 |
4905M |
277101 |
4939M |
277911 |
4975M |
277987 |
4977M |