Query time 0.00078
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "59.52"
},
"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": 4,
"rows_produced_per_join": 4,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "1.81",
"eval_cost": "0.80",
"prefix_cost": "2.61",
"data_read_per_join": "416"
},
"used_columns": [
"feature_id",
"group_id"
],
"attached_condition": "(`webmarco`.`gpf`.`group_id` in (9795,9812,7598,7597))"
}
},
{
"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": 37,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "4.04",
"eval_cost": "7.55",
"prefix_cost": "14.20",
"data_read_per_join": "604"
},
"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": 37,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "37.76",
"eval_cost": "7.55",
"prefix_cost": "59.52",
"data_read_per_join": "29K"
},
"used_columns": [
"feature_id",
"product_id",
"variant_id",
"lang_code"
]
}
}
]
}
}
Result
feature_id |
product_id |
variant_id |
group_id |
860 |
359740 |
64753 |
7597 |
860 |
359742 |
64475 |
7597 |
548 |
359744 |
1193 |
7598 |
548 |
359746 |
1195 |
7598 |
626 |
414376 |
67587 |
9795 |
626 |
414377 |
7159 |
9795 |
626 |
414378 |
7168 |
9795 |
626 |
414379 |
7169 |
9795 |
626 |
414380 |
7170 |
9795 |
626 |
414381 |
7160 |
9795 |
626 |
414382 |
7161 |
9795 |
626 |
414383 |
7162 |
9795 |
626 |
414384 |
7163 |
9795 |
626 |
414385 |
7164 |
9795 |
626 |
414386 |
7165 |
9795 |
626 |
414387 |
7166 |
9795 |
626 |
414388 |
7167 |
9795 |
626 |
414514 |
67587 |
9812 |
626 |
414516 |
7159 |
9812 |
626 |
414517 |
7160 |
9812 |
626 |
414518 |
7161 |
9812 |
626 |
414519 |
7162 |
9812 |
626 |
414520 |
7163 |
9812 |
626 |
414521 |
7164 |
9812 |