Query time 0.00091
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "117.81"
},
"grouping_operation": {
"using_filesort": false,
"nested_loop": [
{
"table": {
"table_name": "q_products_categories",
"access_type": "range",
"possible_keys": [
"PRIMARY",
"pt"
],
"key": "pt",
"used_key_parts": [
"product_id"
],
"key_length": "3",
"rows_examined_per_scan": 33,
"rows_produced_per_join": 33,
"filtered": "100.00",
"index_condition": "(`portal`.`q_products_categories`.`product_id` in (8501,8503,8504,8506,8507,8508,8509,8510,8511,8512,8514,8515,8516,8517,8518,8519,8521,8477,8476,8474,8377,8376,8375,8374,8368,8367,8272,8271,8270,8269,8268,8267))",
"cost_info": {
"read_cost": "71.61",
"eval_cost": "6.60",
"prefix_cost": "78.21",
"data_read_per_join": "528"
},
"used_columns": [
"product_id",
"category_id",
"link_type"
]
}
},
{
"table": {
"table_name": "q_categories",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY",
"c_status",
"p_category_id"
],
"key": "PRIMARY",
"used_key_parts": [
"category_id"
],
"key_length": "3",
"ref": [
"portal.q_products_categories.category_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 6,
"filtered": "20.00",
"cost_info": {
"read_cost": "33.00",
"eval_cost": "1.32",
"prefix_cost": "117.81",
"data_read_per_join": "17K"
},
"used_columns": [
"category_id",
"usergroup_ids",
"status"
],
"attached_condition": "(((`portal`.`q_categories`.`usergroup_ids` = '') or find_in_set(0,`portal`.`q_categories`.`usergroup_ids`) or find_in_set(1,`portal`.`q_categories`.`usergroup_ids`)) and (`portal`.`q_categories`.`status` in ('A','H')))"
}
}
]
}
}
}
Result
product_id |
category_ids |
8267 |
181M |
8268 |
180M |
8269 |
114M |
8270 |
13,96M |
8271 |
82M |
8272 |
145M |
8367 |
145M |
8368 |
393M |
8374 |
366M |
8375 |
366M |
8376 |
366M |
8377 |
366M |
8474 |
552M |
8476 |
49,145M |
8477 |
145M |
8501 |
181M |
8503 |
181M |
8504 |
145M |
8506 |
145M |
8507 |
145M |
8508 |
139M |
8509 |
525M |
8510 |
180M |
8511 |
180M |
8512 |
525M |
8514 |
145M |
8515 |
523M |
8516 |
145M |
8517 |
525M |
8518 |
525M |
8519 |
181M |
8521 |
145M |