Query time 0.00090
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "17.71"
},
"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": 19,
"rows_produced_per_join": 19,
"filtered": "100.00",
"index_condition": "(`cscartdb`.`cscart_products_categories`.`product_id` in (62676,57923,57919,63369,57930,57936,57912,63445,63383,62954))",
"cost_info": {
"read_cost": "9.16",
"eval_cost": "1.90",
"prefix_cost": "11.06",
"data_read_per_join": "304"
},
"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": [
"cscartdb.cscart_products_categories.category_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 0,
"filtered": "5.00",
"cost_info": {
"read_cost": "4.75",
"eval_cost": "0.10",
"prefix_cost": "17.71",
"data_read_per_join": "3K"
},
"used_columns": [
"category_id",
"storefront_id",
"usergroup_ids",
"status"
],
"attached_condition": "((`cscartdb`.`cscart_categories`.`storefront_id` in (0,1)) and ((`cscartdb`.`cscart_categories`.`usergroup_ids` = '') or (0 <> find_in_set(0,`cscartdb`.`cscart_categories`.`usergroup_ids`)) or (0 <> find_in_set(1,`cscartdb`.`cscart_categories`.`usergroup_ids`))) and (`cscartdb`.`cscart_categories`.`status` in ('A','H')))"
}
}
]
}
}
}
Result
product_id |
category_ids |
57912 |
1438,347M |
57919 |
1437,347M |
57923 |
1438,580M |
57930 |
1419,581M |
57936 |
1437,347M |
62676 |
1419,581M |
62954 |
1421,99M |
63369 |
1420,16M |
63383 |
1420,16M |
63445 |
1422,383M |