Query time 0.00150
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "38.72"
},
"nested_loop": [
{
"table": {
"table_name": "p",
"access_type": "range",
"possible_keys": [
"PRIMARY",
"idx_group_id"
],
"key": "PRIMARY",
"used_key_parts": [
"product_id"
],
"key_length": "3",
"rows_examined_per_scan": 9,
"rows_produced_per_join": 9,
"filtered": "100.00",
"cost_info": {
"read_cost": "10.82",
"eval_cost": "1.80",
"prefix_cost": "12.62",
"data_read_per_join": "144"
},
"used_columns": [
"product_id",
"parent_product_id",
"group_id"
],
"attached_condition": "(`webmarco`.`p`.`product_id` in (366953,366952,366954,435475,435494,435482,435491,435485,435500))"
}
},
{
"table": {
"table_name": "g",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"id"
],
"key_length": "3",
"ref": [
"webmarco.p.group_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 9,
"filtered": "100.00",
"cost_info": {
"read_cost": "9.00",
"eval_cost": "1.80",
"prefix_cost": "23.42",
"data_read_per_join": "3K"
},
"used_columns": [
"id",
"code"
]
}
},
{
"table": {
"table_name": "f",
"access_type": "ref",
"possible_keys": [
"idx_group_id"
],
"key": "idx_group_id",
"used_key_parts": [
"group_id"
],
"key_length": "3",
"ref": [
"webmarco.p.group_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 12,
"filtered": "100.00",
"cost_info": {
"read_cost": "12.75",
"eval_cost": "2.55",
"prefix_cost": "38.73",
"data_read_per_join": "1K"
},
"used_columns": [
"feature_id",
"purpose",
"group_id"
]
}
}
]
}
}
Result
feature_id |
purpose |
product_id |
parent_product_id |
id |
code |
860 |
group_variation_catalog_item |
435475 |
0 |
10902 |
PV-11D19E50A |
860 |
group_variation_catalog_item |
435482 |
0 |
10903 |
PV-96032ACC0 |
860 |
group_variation_catalog_item |
435485 |
0 |
10904 |
PV-A8A0564EB |
860 |
group_variation_catalog_item |
435491 |
0 |
10906 |
PV-EB91E7E96 |
860 |
group_variation_catalog_item |
435494 |
0 |
10907 |
PV-96AAFEB1C |
860 |
group_variation_catalog_item |
435500 |
0 |
10908 |
PV-8C1522EB1 |