Query time 0.00046
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "52.41"
},
"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": 19,
"rows_produced_per_join": 19,
"filtered": "100.00",
"index_condition": "(`ea201_diorama`.`cscart_products_categories`.`product_id` in (34809,30744,34810))",
"cost_info": {
"read_cost": "25.81",
"eval_cost": "3.80",
"prefix_cost": "29.61",
"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": [
"ea201_diorama.cscart_products_categories.category_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 0,
"filtered": "5.00",
"cost_info": {
"read_cost": "19.00",
"eval_cost": "0.19",
"prefix_cost": "52.41",
"data_read_per_join": "2K"
},
"used_columns": [
"category_id",
"usergroup_ids",
"status",
"storefront_id"
],
"attached_condition": "((`ea201_diorama`.`cscart_categories`.`storefront_id` in (0,1)) and ((`ea201_diorama`.`cscart_categories`.`usergroup_ids` = '') or find_in_set(0,`ea201_diorama`.`cscart_categories`.`usergroup_ids`) or find_in_set(1,`ea201_diorama`.`cscart_categories`.`usergroup_ids`)) and (`ea201_diorama`.`cscart_categories`.`status` in ('A','H')))"
}
}
]
}
}
}
Result
product_id |
category_ids |
30744 |
184,177,179,217M |
34809 |
266,264,394,180,217,184,177,179,267M |
34810 |
264,266,180,394,217,184,177,179,267M |