Query time 0.00092
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "53.84"
},
"nested_loop": [
{
"table": {
"table_name": "gpf",
"access_type": "ref",
"possible_keys": [
"PRIMARY",
"idx_group_id"
],
"key": "idx_group_id",
"used_key_parts": [
"group_id"
],
"key_length": "3",
"ref": [
"const"
],
"rows_examined_per_scan": 2,
"rows_produced_per_join": 2,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "1.00",
"eval_cost": "0.40",
"prefix_cost": "1.40",
"data_read_per_join": "208"
},
"used_columns": [
"feature_id",
"group_id"
]
}
},
{
"table": {
"table_name": "gp",
"access_type": "ref",
"possible_keys": [
"PRIMARY",
"idx_group_id"
],
"key": "idx_group_id",
"used_key_parts": [
"group_id"
],
"key_length": "3",
"ref": [
"const"
],
"rows_examined_per_scan": 18,
"rows_produced_per_join": 36,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "2.04",
"eval_cost": "7.20",
"prefix_cost": "10.64",
"data_read_per_join": "576"
},
"used_columns": [
"product_id",
"group_id"
]
}
},
{
"table": {
"table_name": "pfv",
"access_type": "ref",
"possible_keys": [
"PRIMARY",
"fl",
"lang_code",
"product_id",
"fpl",
"idx_product_feature_variant_id"
],
"key": "fpl",
"used_key_parts": [
"feature_id",
"product_id",
"lang_code"
],
"key_length": "12",
"ref": [
"webmarco.gpf.feature_id",
"webmarco.gp.product_id",
"const"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 36,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "36.00",
"eval_cost": "7.20",
"prefix_cost": "53.84",
"data_read_per_join": "27K"
},
"used_columns": [
"feature_id",
"product_id",
"variant_id",
"lang_code"
]
}
}
]
}
}
Result
feature_id |
product_id |
variant_id |
group_id |
548 |
81948 |
1193 |
2004 |
548 |
149025 |
1195 |
2004 |
548 |
149026 |
1194 |
2004 |
548 |
149027 |
1193 |
2004 |
548 |
149028 |
1195 |
2004 |
548 |
149029 |
1194 |
2004 |
548 |
149030 |
1193 |
2004 |
548 |
149031 |
1195 |
2004 |
548 |
149032 |
1194 |
2004 |
548 |
149033 |
1193 |
2004 |
548 |
149034 |
1195 |
2004 |
548 |
149035 |
1194 |
2004 |
548 |
149036 |
1193 |
2004 |
548 |
149037 |
1195 |
2004 |
548 |
149038 |
1194 |
2004 |
548 |
149039 |
1193 |
2004 |
548 |
149040 |
1195 |
2004 |
548 |
149041 |
1194 |
2004 |
549 |
81948 |
1515 |
2004 |
549 |
149025 |
1515 |
2004 |
549 |
149026 |
1515 |
2004 |
549 |
149027 |
1518 |
2004 |
549 |
149028 |
1518 |
2004 |
549 |
149029 |
1518 |
2004 |
549 |
149030 |
37925 |
2004 |
549 |
149031 |
37925 |
2004 |
549 |
149032 |
37925 |
2004 |
549 |
149033 |
1199 |
2004 |
549 |
149034 |
1199 |
2004 |
549 |
149035 |
1199 |
2004 |
549 |
149036 |
38109 |
2004 |
549 |
149037 |
38109 |
2004 |
549 |
149038 |
38109 |
2004 |
549 |
149039 |
1498 |
2004 |
549 |
149040 |
1498 |
2004 |
549 |
149041 |
1498 |
2004 |