Query time 0.00084
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "133.21"
},
"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": 29,
"rows_produced_per_join": 29,
"filtered": "100.00",
"index_condition": "(`portal`.`q_products_categories`.`product_id` in (31047,31053,31068,31074,31082,31089,31091,31117,31129,31151,31155,31156,10422,10429,10431,10432,10433,10027,10028,4579,4580,3352,3353))",
"cost_info": {
"read_cost": "57.81",
"eval_cost": "5.80",
"prefix_cost": "63.61",
"data_read_per_join": "464"
},
"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": 29,
"filtered": "100.00",
"cost_info": {
"read_cost": "29.00",
"eval_cost": "5.80",
"prefix_cost": "98.41",
"data_read_per_join": "464"
},
"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": "29.00",
"eval_cost": "1.16",
"prefix_cost": "133.21",
"data_read_per_join": "15K"
},
"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 |
3352 |
180M |
|
3353 |
180M |
|
4579 |
180M |
|
4580 |
180M |
|
10027 |
168M |
0 |
10028 |
180M |
|
10422 |
168M |
0 |
10429 |
244M |
|
10431 |
244M |
|
10432 |
518M |
|
10433 |
180M |
|
31047 |
183M |
|
31053 |
172,481,169M |
|
31068 |
183M |
|
31074 |
183M |
|
31082 |
183M |
|
31089 |
183M |
|
31091 |
179M |
|
31117 |
183M |
|
31129 |
529M |
|
31151 |
176M |
|
31155 |
180M |
|
31156 |
188M |
|