Query time 0.00141
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "9.74"
},
"nested_loop": [
{
"table": {
"table_name": "P",
"access_type": "const",
"possible_keys": [
"PRIMARY",
"cscart_products_product_id_index"
],
"key": "PRIMARY",
"used_key_parts": [
"product_id"
],
"key_length": "3",
"ref": [
"const"
],
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},
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"product_id"
]
}
},
{
"table": {
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"PRIMARY",
"fl",
"variant_id",
"product_id",
"fpl",
"idx_product_feature_variant_id"
],
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"product_id"
],
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],
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"read_cost": "0.65",
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"data_read_per_join": "5K"
},
"used_columns": [
"feature_id",
"product_id",
"variant_id"
],
"attached_condition": "(`dev2`.`PFV`.`product_id` = '8878')"
}
},
{
"table": {
"table_name": "PF",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY",
"status"
],
"key": "PRIMARY",
"used_key_parts": [
"feature_id"
],
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"ref": [
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],
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},
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],
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}
},
{
"table": {
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"PRIMARY"
],
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"variant_id"
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],
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{
"table": {
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"PRIMARY"
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"feature_id"
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]
}
},
{
"table": {
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"PRIMARY"
],
"key": "PRIMARY",
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"variant_id"
],
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"ref": [
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],
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"read_cost": "1.42",
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"data_read_per_join": "24K"
},
"used_columns": [
"variant_id",
"variant"
]
}
}
]
}
}
Result
product_id |
name |
variant |
variant_id |
feature_id |
8878 |
Двигатель |
MC13.54-50 |
11642 |
735 |
8878 |
Мощность двигателя, л.с. |
540 |
11643 |
737 |
8878 |
Колесная формула |
6x4 |
8861 |
744 |
8878 |
Объем топливного бака, л. |
600 |
9490 |
746 |
8878 |
Экологический стандарт |
Евро-5 |
9138 |
749 |
8878 |
Страна производитель |
Китай |
9730 |
758 |