Query time 0.00084
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "134.41"
},
"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 (3799,3800,3801,3802,3803,3805,3806,3566,3567,3568,3569,3747,3748,3749,3750,3751,3752,3753,3755,3756,3757,3758,3759,3760,3761,3762,3764,3772))",
"cost_info": {
"read_cost": "61.61",
"eval_cost": "5.60",
"prefix_cost": "67.21",
"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": "100.81",
"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": "134.41",
"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 |
3566 |
451M |
|
3567 |
451M |
|
3568 |
451M |
|
3569 |
451M |
|
3747 |
451M |
|
3748 |
451M |
|
3749 |
451M |
|
3750 |
451M |
|
3751 |
451M |
|
3752 |
451M |
|
3753 |
451M |
|
3755 |
451M |
|
3756 |
451M |
|
3757 |
451M |
|
3758 |
451M |
|
3759 |
451M |
|
3760 |
451M |
|
3761 |
451M |
|
3762 |
451M |
|
3764 |
451M |
|
3772 |
482M |
|
3799 |
448M |
|
3800 |
448M |
|
3801 |
448M |
|
3802 |
448M |
|
3803 |
448M |
|
3805 |
451,456M |
|
3806 |
451,456M |
|