Query time 0.00085
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "30.12"
},
"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": 7,
"rows_produced_per_join": 7,
"filtered": "100.00",
"cost_info": {
"read_cost": "8.42",
"eval_cost": "1.40",
"prefix_cost": "9.82",
"data_read_per_join": "112"
},
"used_columns": [
"product_id",
"parent_product_id",
"group_id"
],
"attached_condition": "(`webmarco`.`p`.`product_id` in (414415,414416,414417,414418,414419,414420,414421))"
}
},
{
"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": 7,
"filtered": "100.00",
"cost_info": {
"read_cost": "7.00",
"eval_cost": "1.40",
"prefix_cost": "18.22",
"data_read_per_join": "2K"
},
"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": 9,
"filtered": "100.00",
"cost_info": {
"read_cost": "9.92",
"eval_cost": "1.98",
"prefix_cost": "30.12",
"data_read_per_join": "1K"
},
"used_columns": [
"feature_id",
"purpose",
"group_id"
]
}
}
]
}
}
Result
feature_id |
purpose |
product_id |
parent_product_id |
id |
code |
626 |
group_variation_catalog_item |
414415 |
0 |
9800 |
PV-5D1E40BEB |
626 |
group_variation_catalog_item |
414416 |
414415 |
9800 |
PV-5D1E40BEB |
626 |
group_variation_catalog_item |
414417 |
414415 |
9800 |
PV-5D1E40BEB |
626 |
group_variation_catalog_item |
414418 |
414415 |
9800 |
PV-5D1E40BEB |
626 |
group_variation_catalog_item |
414419 |
414415 |
9800 |
PV-5D1E40BEB |
626 |
group_variation_catalog_item |
414420 |
414415 |
9800 |
PV-5D1E40BEB |
626 |
group_variation_catalog_item |
414421 |
414415 |
9800 |
PV-5D1E40BEB |