Query time 0.00091
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "132.41"
},
"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": 28,
"rows_produced_per_join": 28,
"filtered": "100.00",
"index_condition": "(`portal`.`q_products_categories`.`product_id` in (10514,10341,10353,10366,10367,10371,10372,10373,10374,10022,10026,10031,10033,10035,10036,10037,10038,10041,10042,10045,10046,10048,10051,8682,8214,4584))",
"cost_info": {
"read_cost": "59.61",
"eval_cost": "5.60",
"prefix_cost": "65.21",
"data_read_per_join": "448"
},
"used_columns": [
"product_id",
"category_id",
"link_type"
]
}
},
{
"table": {
"table_name": "product_position_source",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY",
"pt"
],
"key": "PRIMARY",
"used_key_parts": [
"category_id",
"product_id"
],
"key_length": "6",
"ref": [
"const",
"portal.q_products_categories.product_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 28,
"filtered": "100.00",
"cost_info": {
"read_cost": "28.00",
"eval_cost": "5.60",
"prefix_cost": "98.81",
"data_read_per_join": "448"
},
"used_columns": [
"product_id",
"category_id",
"position"
]
}
},
{
"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": 5,
"filtered": "20.00",
"cost_info": {
"read_cost": "28.00",
"eval_cost": "1.12",
"prefix_cost": "132.41",
"data_read_per_join": "14K"
},
"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 |
position |
4584 |
206M |
|
8214 |
551M |
|
8682 |
206M |
|
10022 |
206M |
|
10026 |
424M |
|
10031 |
206M |
|
10033 |
206M |
|
10035 |
200M |
|
10036 |
200M |
|
10037 |
424M |
|
10038 |
424M |
|
10041 |
424M |
|
10042 |
424M |
|
10045 |
603,201M |
|
10046 |
386M |
|
10048 |
424M |
|
10051 |
196M |
|
10341 |
206M |
|
10353 |
201M |
|
10366 |
206M |
|
10367 |
206M |
|
10371 |
206M |
|
10372 |
206M |
|
10373 |
206M |
|
10374 |
206M |
|
10514 |
206M |
|