Query time 0.00123
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "382.76"
},
"ordering_operation": {
"using_filesort": true,
"grouping_operation": {
"using_temporary_table": true,
"using_filesort": false,
"nested_loop": [
{
"table": {
"table_name": "cscart_product_feature_variants",
"access_type": "range",
"possible_keys": [
"PRIMARY",
"feature_id"
],
"key": "feature_id",
"used_key_parts": [
"feature_id"
],
"key_length": "3",
"rows_examined_per_scan": 11,
"rows_produced_per_join": 11,
"filtered": "100.00",
"index_condition": "(`cscartdb`.`cscart_product_feature_variants`.`feature_id` in (1329,1330))",
"cost_info": {
"read_cost": "4.36",
"eval_cost": "1.10",
"prefix_cost": "5.46",
"data_read_per_join": "12K"
},
"used_columns": [
"variant_id",
"feature_id",
"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": [
"cscartdb.cscart_product_feature_variants.variant_id",
"const"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 11,
"filtered": "100.00",
"cost_info": {
"read_cost": "2.75",
"eval_cost": "1.10",
"prefix_cost": "9.31",
"data_read_per_join": "33K"
},
"used_columns": [
"variant_id",
"variant",
"lang_code"
]
}
},
{
"table": {
"table_name": "cscart_product_features_values",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY",
"fl",
"variant_id",
"lang_code",
"product_id",
"fpl",
"idx_product_feature_variant_id"
],
"key": "PRIMARY",
"used_key_parts": [
"feature_id",
"product_id",
"variant_id",
"lang_code"
],
"key_length": "15",
"ref": [
"cscartdb.cscart_product_feature_variants.feature_id",
"const",
"cscartdb.cscart_product_feature_variants.variant_id",
"const"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 11,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "2.75",
"eval_cost": "1.10",
"prefix_cost": "13.16",
"data_read_per_join": "8K"
},
"used_columns": [
"feature_id",
"product_id",
"variant_id",
"lang_code"
]
}
},
{
"table": {
"table_name": "cscart_product_features",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"feature_id"
],
"key_length": "3",
"ref": [
"cscartdb.cscart_product_feature_variants.feature_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 11,
"filtered": "100.00",
"cost_info": {
"read_cost": "2.75",
"eval_cost": "1.10",
"prefix_cost": "17.01",
"data_read_per_join": "4K"
},
"used_columns": [
"feature_id",
"feature_type"
]
}
},
{
"table": {
"table_name": "cscart_seo_names",
"access_type": "ref",
"possible_keys": [
"PRIMARY",
"dispatch"
],
"key": "PRIMARY",
"used_key_parts": [
"object_id",
"type",
"dispatch",
"lang_code"
],
"key_length": "206",
"ref": [
"cscartdb.cscart_product_feature_variants.variant_id",
"const",
"const",
"const"
],
"rows_examined_per_scan": 95,
"rows_produced_per_join": 1045,
"filtered": "100.00",
"cost_info": {
"read_cost": "261.25",
"eval_cost": "104.50",
"prefix_cost": "382.76",
"data_read_per_join": "1M"
},
"used_columns": [
"name",
"object_id",
"type",
"dispatch",
"path",
"lang_code"
]
}
}
]
}
}
}
}
Result
variant |
variant_id |
feature_id |
selected |
feature_type |
seo_name |
seo_path |
6" |
5296 |
1330 |
5296 |
S |
|
|
Midnight Black |
5288 |
1329 |
5288 |
S |
|
|
7" |
5297 |
1330 |
|
S |
|
|
Maroon Red |
5289 |
1329 |
|
S |
|
|
8" |
5298 |
1330 |
|
S |
|
|
Gold |
5290 |
1329 |
|
S |
|
|
Purple Flame |
5291 |
1329 |
|
S |
|
|
Deepsea Blue |
5292 |
1329 |
|
S |
|
|
Mint |
5293 |
1329 |
|
S |
|
|
Marble White |
5294 |
1329 |
|
S |
|
|
Rose Pink |
5295 |
1329 |
|
S |
|
|