Query time 0.00098
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "8.44"
},
"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": 9,
"rows_produced_per_join": 9,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "1.24",
"eval_cost": "0.90",
"prefix_cost": "2.14",
"data_read_per_join": "6K"
},
"used_columns": [
"feature_id",
"product_id",
"variant_id"
],
"attached_condition": "((`cscartdb`.`v`.`feature_id` = 153) and (`cscartdb`.`v`.`product_id` in ('10185','10184','10183','10182','10181','10180','10179','10178','10177')))"
}
},
{
"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": 9,
"filtered": "100.00",
"cost_info": {
"read_cost": "2.25",
"eval_cost": "0.90",
"prefix_cost": "5.29",
"data_read_per_join": "27K"
},
"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": 9,
"filtered": "100.00",
"cost_info": {
"read_cost": "2.25",
"eval_cost": "0.90",
"prefix_cost": "8.44",
"data_read_per_join": "10K"
},
"used_columns": [
"variant_id",
"color",
"position"
]
}
}
]
}
}
Result
variant_id |
product_id |
variant |
position |
color |
673 |
10177 |
Small Metal |
0 |
|
674 |
10178 |
Small Silicone |
1 |
|
675 |
10179 |
Small Stainless |
2 |
|
676 |
10180 |
Medium Metal |
3 |
|
677 |
10181 |
Medium Silicone |
4 |
|
678 |
10182 |
Medium Stainless |
5 |
|
679 |
10183 |
Large Metal |
6 |
|
680 |
10184 |
Large Silicone |
7 |
|
681 |
10185 |
Large Stainless |
8 |
|