Query time 0.00066
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "62.81"
},
"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": 18,
"rows_produced_per_join": 18,
"filtered": "100.00",
"index_condition": "(`portal`.`q_products_categories`.`product_id` in (10448,10449,10450,10451,10452,10453,10454,10455,10456,10457,10458,10459,10460,10461,10462,10463))",
"cost_info": {
"read_cost": "37.61",
"eval_cost": "3.60",
"prefix_cost": "41.21",
"data_read_per_join": "288"
},
"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": 3,
"filtered": "20.00",
"cost_info": {
"read_cost": "18.00",
"eval_cost": "0.72",
"prefix_cost": "62.81",
"data_read_per_join": "9K"
},
"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 |
10448 |
221M |
10449 |
475M |
10450 |
475M |
10451 |
475M |
10452 |
475M |
10453 |
475M |
10454 |
564M |
10455 |
92,93M |
10456 |
93,92M |
10457 |
202M |
10458 |
194M |
10459 |
194M |
10460 |
194M |
10461 |
199M |
10462 |
378M |
10463 |
201M |