Query time 0.00043
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "16.31"
},
"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 (449,448,447,446,445,444,443,442,394,378))",
"cost_info": {
"read_cost": "6.71",
"eval_cost": "1.20",
"prefix_cost": "7.91",
"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": "12.11",
"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": "16.31",
"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 |
378 |
0 |
3 |
PV-CA7E2E727 |
2 |
group_variation_catalog_item |
394 |
0 |
6 |
PV-839773737 |
2 |
group_variation_catalog_item |
442 |
0 |
21 |
PV-ABAAD25B9 |
2 |
group_variation_catalog_item |
443 |
0 |
20 |
PV-70F43EFCC |
2 |
group_variation_catalog_item |
444 |
0 |
19 |
PV-EFC0AF048 |
2 |
group_variation_catalog_item |
445 |
0 |
18 |
PV-41E22B703 |
2 |
group_variation_catalog_item |
446 |
0 |
17 |
PV-D941E28A1 |
2 |
group_variation_catalog_item |
447 |
0 |
16 |
PV-5C7371863 |
2 |
group_variation_catalog_item |
448 |
0 |
14 |
PV-0DE38BFB6 |
2 |
group_variation_catalog_item |
449 |
0 |
13 |
PV-D6E085082 |