Query time 0.00116
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "14.81"
},
"nested_loop": [
{
"table": {
"table_name": "v",
"access_type": "range",
"possible_keys": [
"PRIMARY",
"fl",
"product_id",
"fpl",
"idx_product_feature_variant_id"
],
"key": "idx_product_feature_variant_id",
"used_key_parts": [
"product_id",
"feature_id"
],
"key_length": "6",
"rows_examined_per_scan": 16,
"rows_produced_per_join": 16,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "2.01",
"eval_cost": "1.60",
"prefix_cost": "3.61",
"data_read_per_join": "12K"
},
"used_columns": [
"feature_id",
"product_id",
"variant_id"
],
"attached_condition": "((`cscartdb`.`v`.`feature_id` = 345) and (`cscartdb`.`v`.`product_id` in ('27593','27599','27598','27597','27596','27595','27594','27592','27591','27590','27589','27588','27587','27586','19069')))"
}
},
{
"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": 16,
"filtered": "100.00",
"cost_info": {
"read_cost": "4.00",
"eval_cost": "1.60",
"prefix_cost": "9.21",
"data_read_per_join": "48K"
},
"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": 16,
"filtered": "100.00",
"cost_info": {
"read_cost": "4.00",
"eval_cost": "1.60",
"prefix_cost": "14.81",
"data_read_per_join": "18K"
},
"used_columns": [
"variant_id",
"color",
"position"
]
}
}
]
}
}
Result
variant_id |
product_id |
variant |
position |
color |
1735 |
19069 |
S |
0 |
#000000 |
1735 |
27586 |
S |
0 |
#000000 |
1735 |
27587 |
S |
0 |
#000000 |
1736 |
27588 |
M |
1 |
#000000 |
1736 |
27589 |
M |
1 |
#000000 |
1736 |
27590 |
M |
1 |
#000000 |
1737 |
27591 |
L |
2 |
#000000 |
1737 |
27592 |
L |
2 |
#000000 |
1737 |
27593 |
L |
2 |
#000000 |
1738 |
27594 |
XL |
3 |
#000000 |
1738 |
27595 |
XL |
3 |
#000000 |
1738 |
27596 |
XL |
3 |
#000000 |
1739 |
27597 |
XXL |
4 |
#000000 |
1739 |
27598 |
XXL |
4 |
#000000 |
1739 |
27599 |
XXL |
4 |
#000000 |