Query time 0.00108
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "11.17"
},
"nested_loop": [
{
"table": {
"table_name": "v",
"access_type": "range",
"possible_keys": [
"PRIMARY",
"fl",
"product_id",
"fpl",
"idx_product_feature_variant_id"
],
"key": "PRIMARY",
"used_key_parts": [
"feature_id",
"product_id"
],
"key_length": "6",
"rows_examined_per_scan": 12,
"rows_produced_per_join": 12,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "1.57",
"eval_cost": "1.20",
"prefix_cost": "2.77",
"data_read_per_join": "9K"
},
"used_columns": [
"feature_id",
"product_id",
"variant_id"
],
"attached_condition": "((`cscartdb`.`v`.`feature_id` = 1480) and (`cscartdb`.`v`.`product_id` in ('63431','63432','63433','63434','63435','63436','63437','63438','63439','63440','63441','63442')))"
}
},
{
"table": {
"table_name": "vd",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"variant_id",
"lang_code"
],
"key_length": "9",
"ref": [
"cscartdb.v.variant_id",
"const"
],
"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": "6.97",
"data_read_per_join": "36K"
},
"used_columns": [
"variant_id",
"variant",
"lang_code"
]
}
},
{
"table": {
"table_name": "vf",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"variant_id"
],
"key_length": "3",
"ref": [
"cscartdb.v.variant_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": "11.17",
"data_read_per_join": "13K"
},
"used_columns": [
"variant_id",
"color",
"position"
]
}
}
]
}
}
Result
variant_id |
product_id |
variant |
position |
color |
5977 |
63431 |
Red |
1 |
#ff0000 |
5977 |
63432 |
Red |
1 |
#ff0000 |
5978 |
63433 |
Black |
2 |
#000000 |
5978 |
63434 |
Black |
2 |
#000000 |
5979 |
63435 |
Purple |
3 |
#9900ff |
5979 |
63436 |
Purple |
3 |
#9900ff |
5980 |
63437 |
Pink |
4 |
#ffd1f2 |
5980 |
63438 |
Pink |
4 |
#ffd1f2 |
5981 |
63439 |
White |
5 |
#ffffff |
5981 |
63440 |
White |
5 |
#ffffff |
5982 |
63441 |
Blue |
6 |
#0000ff |
5982 |
63442 |
Blue |
6 |
#0000ff |