Query time 0.00099
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "7.53"
},
"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": 8,
"rows_produced_per_join": 8,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "1.13",
"eval_cost": "0.80",
"prefix_cost": "1.93",
"data_read_per_join": "6K"
},
"used_columns": [
"feature_id",
"product_id",
"variant_id"
],
"attached_condition": "((`cscartdb`.`v`.`feature_id` = 361) and (`cscartdb`.`v`.`product_id` in ('21145','21146','21144','21143','21142','21141','21140','17089')))"
}
},
{
"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": 8,
"filtered": "100.00",
"cost_info": {
"read_cost": "2.00",
"eval_cost": "0.80",
"prefix_cost": "4.73",
"data_read_per_join": "24K"
},
"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": 8,
"filtered": "100.00",
"cost_info": {
"read_cost": "2.00",
"eval_cost": "0.80",
"prefix_cost": "7.53",
"data_read_per_join": "9K"
},
"used_columns": [
"variant_id",
"color",
"position"
]
}
}
]
}
}
Result
variant_id |
product_id |
variant |
position |
color |
1813 |
17089 |
XXS |
0 |
#000000 |
1814 |
21140 |
XS |
1 |
#000000 |
1815 |
21141 |
Small |
2 |
#000000 |
1816 |
21142 |
Medium |
3 |
#000000 |
1817 |
21143 |
Large |
4 |
#000000 |
1818 |
21144 |
XL |
5 |
#000000 |
1819 |
21145 |
1X |
6 |
#000000 |
1820 |
21146 |
2X |
7 |
#000000 |