Query time 0.00182
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "30.26"
},
"nested_loop": [
{
"table": {
"table_name": "gpf",
"access_type": "range",
"possible_keys": [
"PRIMARY",
"idx_group_id"
],
"key": "idx_group_id",
"used_key_parts": [
"group_id"
],
"key_length": "3",
"rows_examined_per_scan": 2,
"rows_produced_per_join": 2,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "1.41",
"eval_cost": "0.40",
"prefix_cost": "1.81",
"data_read_per_join": "208"
},
"used_columns": [
"feature_id",
"group_id"
],
"attached_condition": "(`webmarco`.`gpf`.`group_id` in (9794,9796))"
}
},
{
"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": [
"webmarco.gpf.group_id"
],
"rows_examined_per_scan": 9,
"rows_produced_per_join": 18,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "2.02",
"eval_cost": "3.78",
"prefix_cost": "7.61",
"data_read_per_join": "302"
},
"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": 18,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "18.88",
"eval_cost": "3.78",
"prefix_cost": "30.26",
"data_read_per_join": "14K"
},
"used_columns": [
"feature_id",
"product_id",
"variant_id",
"lang_code"
]
}
}
]
}
}
Result
feature_id |
product_id |
variant_id |
group_id |
626 |
414367 |
7162 |
9794 |
626 |
414368 |
7168 |
9794 |
626 |
414369 |
7169 |
9794 |
626 |
414370 |
7163 |
9794 |
626 |
414371 |
7164 |
9794 |
626 |
414372 |
7165 |
9794 |
626 |
414373 |
7166 |
9794 |
626 |
414374 |
7167 |
9794 |
626 |
414389 |
67589 |
9796 |
626 |
414390 |
67587 |
9796 |
626 |
414391 |
7159 |
9796 |
626 |
414392 |
7160 |
9796 |