Query time 0.00099
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "38.25"
},
"nested_loop": [
{
"table": {
"table_name": "gp",
"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": 11,
"rows_produced_per_join": 11,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "3.22",
"eval_cost": "2.20",
"prefix_cost": "5.42",
"data_read_per_join": "176"
},
"used_columns": [
"product_id",
"group_id"
],
"attached_condition": "(`webmarco`.`gp`.`group_id` in (7607,7579,7567,7598,7600,7602,7571))"
}
},
{
"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": [
"webmarco.gp.group_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 15,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "11.01",
"eval_cost": "3.12",
"prefix_cost": "19.54",
"data_read_per_join": "1K"
},
"used_columns": [
"feature_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": 15,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "15.59",
"eval_cost": "3.12",
"prefix_cost": "38.25",
"data_read_per_join": "12K"
},
"used_columns": [
"feature_id",
"product_id",
"variant_id",
"lang_code"
]
}
}
]
}
}
Result
feature_id |
product_id |
variant_id |
group_id |
860 |
309585 |
64723 |
7567 |
860 |
309586 |
64691 |
7567 |
860 |
359478 |
64236 |
7571 |
548 |
359805 |
8175 |
7579 |
860 |
359805 |
64721 |
7579 |
548 |
435519 |
61161 |
7579 |
860 |
435519 |
64721 |
7579 |
548 |
359744 |
1193 |
7598 |
548 |
359746 |
1195 |
7598 |
548 |
359752 |
1195 |
7600 |
548 |
359753 |
1194 |
7600 |
860 |
359758 |
64477 |
7602 |
860 |
359772 |
64721 |
7607 |