Query time 0.00101
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "57.04"
},
"grouping_operation": {
"using_filesort": false,
"nested_loop": [
{
"table": {
"table_name": "cscart_products_categories",
"access_type": "range",
"possible_keys": [
"PRIMARY",
"link_type",
"pt"
],
"key": "pt",
"used_key_parts": [
"product_id"
],
"key_length": "3",
"rows_examined_per_scan": 20,
"rows_produced_per_join": 20,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "5.04",
"eval_cost": "4.00",
"prefix_cost": "9.04",
"data_read_per_join": "320"
},
"used_columns": [
"product_id",
"category_id",
"link_type"
],
"attached_condition": "(`webmarco`.`cscart_products_categories`.`product_id` in (262440,264695,264694,264697,339741,339622,339616,339574,339692,339740,339609,339737,339573,339621,339620,339587,339611,339742,339710,339683))"
}
},
{
"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",
"webmarco.cscart_products_categories.product_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 20,
"filtered": "100.00",
"cost_info": {
"read_cost": "20.00",
"eval_cost": "4.00",
"prefix_cost": "33.04",
"data_read_per_join": "320"
},
"used_columns": [
"product_id",
"category_id",
"position"
]
}
},
{
"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": [
"webmarco.cscart_products_categories.category_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 1,
"filtered": "5.00",
"cost_info": {
"read_cost": "20.00",
"eval_cost": "0.20",
"prefix_cost": "57.04",
"data_read_per_join": "5K"
},
"used_columns": [
"category_id",
"usergroup_ids",
"status",
"storefront_id"
],
"attached_condition": "((`webmarco`.`cscart_categories`.`storefront_id` in (0,1)) and ((`webmarco`.`cscart_categories`.`usergroup_ids` = '') or find_in_set(0,`webmarco`.`cscart_categories`.`usergroup_ids`) or find_in_set(1,`webmarco`.`cscart_categories`.`usergroup_ids`)) and (`webmarco`.`cscart_categories`.`status` in ('A','H')))"
}
}
]
}
}
}
Result
product_id |
category_ids |
position |
262440 |
9941M |
0 |
264694 |
9944M |
|
264695 |
9945M |
|
264697 |
9946M |
|
339573 |
9941M |
0 |
339574 |
9941M |
0 |
339587 |
9941M |
0 |
339609 |
9941M |
0 |
339611 |
9941M |
0 |
339616 |
9941M |
0 |
339620 |
9941M |
0 |
339621 |
9941M |
0 |
339622 |
9941M |
0 |
339683 |
9941M |
0 |
339692 |
9941M |
0 |
339710 |
9941M |
0 |
339737 |
9941M |
0 |
339740 |
9941M |
0 |
339741 |
9941M |
0 |
339742 |
9941M |
0 |