Query time 0.00103
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "9.35"
},
"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": 10,
"rows_produced_per_join": 10,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "1.35",
"eval_cost": "1.00",
"prefix_cost": "2.35",
"data_read_per_join": "7K"
},
"used_columns": [
"feature_id",
"product_id",
"variant_id"
],
"attached_condition": "((`chocoramo`.`v`.`feature_id` = 345) and (`chocoramo`.`v`.`product_id` in ('27383','27385','27384','27382','27381','27380','27379','27378','27377','19220')))"
}
},
{
"table": {
"table_name": "vd",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"variant_id",
"lang_code"
],
"key_length": "9",
"ref": [
"chocoramo.v.variant_id",
"const"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 10,
"filtered": "100.00",
"cost_info": {
"read_cost": "2.50",
"eval_cost": "1.00",
"prefix_cost": "5.85",
"data_read_per_join": "30K"
},
"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": [
"chocoramo.v.variant_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 10,
"filtered": "100.00",
"cost_info": {
"read_cost": "2.50",
"eval_cost": "1.00",
"prefix_cost": "9.35",
"data_read_per_join": "11K"
},
"used_columns": [
"variant_id",
"color",
"position"
]
}
}
]
}
}
Result
variant_id |
product_id |
variant |
position |
color |
1735 |
19220 |
S |
0 |
#000000 |
1735 |
27377 |
S |
0 |
#000000 |
1736 |
27378 |
M |
1 |
#000000 |
1736 |
27379 |
M |
1 |
#000000 |
1737 |
27380 |
L |
2 |
#000000 |
1737 |
27381 |
L |
2 |
#000000 |
1738 |
27382 |
XL |
3 |
#000000 |
1738 |
27383 |
XL |
3 |
#000000 |
1739 |
27384 |
XXL |
4 |
#000000 |
1739 |
27385 |
XXL |
4 |
#000000 |