Query time 0.00090
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 (1593,1594,1595,1596,1597,1598,1599,1600,1601,1602,1603,1605,1606,1607,1610,1611,1612,1613,1614,1615,1616,1617,1618,1624,1625,1626,1627,1628))",
"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 |
1593 |
167,393M |
|
1594 |
167,276M |
|
1595 |
276M |
|
1596 |
167,276M |
|
1597 |
393M |
|
1598 |
393M |
|
1599 |
276M |
|
1600 |
276M |
|
1601 |
393M |
|
1602 |
393M |
|
1603 |
276M |
|
1605 |
276M |
|
1606 |
276M |
|
1607 |
276M |
|
1610 |
393M |
|
1611 |
393M |
|
1612 |
393M |
|
1613 |
393M |
|
1614 |
393M |
|
1615 |
393M |
|
1616 |
393M |
|
1617 |
393M |
|
1618 |
393M |
|
1624 |
364M |
|
1625 |
364M |
|
1626 |
364M |
|
1627 |
364M |
|
1628 |
364M |
|