Query time 0.00042
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "16.81"
},
"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": 12,
"rows_produced_per_join": 12,
"filtered": "100.00",
"index_condition": "(`betaatif_store`.`p`.`product_id` in (507,497,492,489,486,482,455,453,452,451,450,449))",
"cost_info": {
"read_cost": "7.21",
"eval_cost": "1.20",
"prefix_cost": "8.41",
"data_read_per_join": "192"
},
"used_columns": [
"product_id",
"parent_product_id",
"group_id"
]
}
},
{
"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": [
"betaatif_store.p.group_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 12,
"filtered": "100.00",
"cost_info": {
"read_cost": "3.00",
"eval_cost": "1.20",
"prefix_cost": "12.61",
"data_read_per_join": "1K"
},
"used_columns": [
"feature_id",
"purpose",
"group_id"
]
}
},
{
"table": {
"table_name": "g",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"id"
],
"key_length": "3",
"ref": [
"betaatif_store.p.group_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 12,
"filtered": "100.00",
"cost_info": {
"read_cost": "3.00",
"eval_cost": "1.20",
"prefix_cost": "16.81",
"data_read_per_join": "4K"
},
"used_columns": [
"id",
"code"
]
}
}
]
}
}
Result
feature_id |
purpose |
product_id |
parent_product_id |
id |
code |
2 |
group_variation_catalog_item |
449 |
0 |
13 |
PV-D6E085082 |
2 |
group_variation_catalog_item |
450 |
0 |
12 |
PV-80EF8A656 |
2 |
group_variation_catalog_item |
451 |
0 |
11 |
PV-772FE8143 |
2 |
group_variation_catalog_item |
452 |
0 |
10 |
PV-F5D6AE1C5 |
2 |
group_variation_catalog_item |
453 |
0 |
9 |
PV-8913558D1 |
2 |
group_variation_catalog_item |
455 |
0 |
8 |
PV-FC9F1E999 |
2 |
group_variation_catalog_item |
482 |
0 |
28 |
PV-850D66D68 |
2 |
group_variation_catalog_item |
486 |
0 |
29 |
PV-E4B9FD3ED |
2 |
group_variation_catalog_item |
489 |
0 |
30 |
PV-5A721B86A |
2 |
group_variation_catalog_item |
492 |
0 |
31 |
PV-8883D8FE4 |
2 |
group_variation_catalog_item |
497 |
0 |
32 |
PV-9504287CB |
2 |
group_variation_catalog_item |
507 |
0 |
34 |
PV-9C52F58C1 |