Query time 0.00052
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "28.81"
},
"ordering_operation": {
"using_temporary_table": true,
"using_filesort": true,
"nested_loop": [
{
"table": {
"table_name": "cscart_product_feature_variants",
"access_type": "range",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"variant_id"
],
"key_length": "3",
"rows_examined_per_scan": 8,
"rows_produced_per_join": 8,
"filtered": "100.00",
"index_condition": "(`danishecarter_25_march`.`cscart_product_feature_variants`.`variant_id` in (86,1195,1201,1194,1200,1199,1193,87))",
"cost_info": {
"read_cost": "17.61",
"eval_cost": "1.60",
"prefix_cost": "19.21",
"data_read_per_join": "21K"
},
"used_columns": [
"variant_id",
"color",
"position"
]
}
},
{
"table": {
"table_name": "cscart_product_feature_variant_descriptions",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"variant_id",
"lang_code"
],
"key_length": "9",
"ref": [
"danishecarter_25_march.cscart_product_feature_variants.variant_id",
"const"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 8,
"filtered": "100.00",
"cost_info": {
"read_cost": "8.00",
"eval_cost": "1.60",
"prefix_cost": "28.81",
"data_read_per_join": "24K"
},
"used_columns": [
"variant_id",
"variant",
"lang_code"
]
}
}
]
}
}
}
Result
variant_id |
position |
color |
variant |
86 |
0 |
|
Adidas |
87 |
0 |
|
Nike |
1193 |
1 |
|
Small |
1199 |
2 |
|
Blue |
1194 |
2 |
|
Large |
1200 |
3 |
|
Black |
1195 |
3 |
|
Medium |
1201 |
4 |
|
White |