Query time 0.00121
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` = 1461) and (`cscartdb`.`v`.`product_id` in ('57936','63535','63534','63533','63532','63531','63530','63529','63528','63527','63526','63525')))"
}
},
{
"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 |
5867 |
57936 |
Silver |
0 |
#ffffff |
5868 |
63525 |
Brass |
1 |
#ffffff |
5867 |
63526 |
Silver |
0 |
#ffffff |
5868 |
63527 |
Brass |
1 |
#ffffff |
5867 |
63528 |
Silver |
0 |
#ffffff |
5868 |
63529 |
Brass |
1 |
#ffffff |
5867 |
63530 |
Silver |
0 |
#ffffff |
5868 |
63531 |
Brass |
1 |
#ffffff |
5867 |
63532 |
Silver |
0 |
#ffffff |
5868 |
63533 |
Brass |
1 |
#ffffff |
5867 |
63534 |
Silver |
0 |
#ffffff |
5868 |
63535 |
Brass |
1 |
#ffffff |