Query time 0.00155
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "36.24"
},
"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": 22,
"rows_produced_per_join": 22,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "5.44",
"eval_cost": "4.40",
"prefix_cost": "9.84",
"data_read_per_join": "352"
},
"used_columns": [
"product_id",
"category_id",
"link_type"
],
"attached_condition": "(`webmarco`.`cscart_products_categories`.`product_id` in (415304,415296,415297,415303,415291,415290,415289,415308,415240,427824,415310,415305,427787,415219,415294,415302,415311,415299,415242,415300))"
}
},
{
"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": "22.00",
"eval_cost": "0.22",
"prefix_cost": "36.24",
"data_read_per_join": "6K"
},
"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 |
415219 |
3407M |
415240 |
4299M |
415242 |
5522M |
415289 |
3487M |
415290 |
4254M |
415291 |
5821M |
415294 |
7301M |
415296 |
9720M |
415297 |
4254M |
415299 |
7849M |
415300 |
3060M |
415302 |
3087M |
415303 |
4575M |
415304 |
9720 |
415305 |
3631 |
415308 |
2985M |
415310 |
8823M |
415311 |
4903M |
427787 |
3087M |
427824 |
5039M |