Query time 0.00221
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "10.75"
},
"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"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 1,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "0.00",
"eval_cost": "0.10",
"prefix_cost": "0.00",
"data_read_per_join": "7K"
},
"used_columns": [
"product_id"
]
}
},
{
"table": {
"table_name": "PFV",
"access_type": "ref",
"possible_keys": [
"PRIMARY",
"fl",
"variant_id",
"product_id",
"fpl",
"idx_product_feature_variant_id"
],
"key": "product_id",
"used_key_parts": [
"product_id"
],
"key_length": "3",
"ref": [
"const"
],
"rows_examined_per_scan": 8,
"rows_produced_per_join": 8,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "0.36",
"eval_cost": "0.80",
"prefix_cost": "1.16",
"data_read_per_join": "6K"
},
"used_columns": [
"feature_id",
"product_id",
"variant_id"
],
"attached_condition": "(`dev2`.`PFV`.`product_id` = '28876')"
}
},
{
"table": {
"table_name": "PF",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY",
"status"
],
"key": "PRIMARY",
"used_key_parts": [
"feature_id"
],
"key_length": "3",
"ref": [
"dev2.PFV.feature_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 6,
"filtered": "80.46",
"cost_info": {
"read_cost": "2.00",
"eval_cost": "0.64",
"prefix_cost": "3.96",
"data_read_per_join": "10K"
},
"used_columns": [
"feature_id",
"status"
],
"attached_condition": "(`dev2`.`PF`.`status` = 'A')"
}
},
{
"table": {
"table_name": "PFVS",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"variant_id"
],
"key_length": "3",
"ref": [
"dev2.PFV.variant_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 6,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "1.61",
"eval_cost": "0.64",
"prefix_cost": "6.21",
"data_read_per_join": "9K"
},
"used_columns": [
"variant_id"
]
}
},
{
"table": {
"table_name": "PFD",
"access_type": "ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"feature_id"
],
"key_length": "3",
"ref": [
"dev2.PFV.feature_id"
],
"rows_examined_per_scan": 1,
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"filtered": "100.00",
"cost_info": {
"read_cost": "1.61",
"eval_cost": "0.65",
"prefix_cost": "8.47",
"data_read_per_join": "17K"
},
"used_columns": [
"feature_id",
"internal_name"
]
}
},
{
"table": {
"table_name": "PFVD",
"access_type": "ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"variant_id"
],
"key_length": "3",
"ref": [
"dev2.PFV.variant_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 6,
"filtered": "100.00",
"cost_info": {
"read_cost": "1.63",
"eval_cost": "0.65",
"prefix_cost": "10.75",
"data_read_per_join": "27K"
},
"used_columns": [
"variant_id",
"variant"
]
}
}
]
}
}
Result
product_id |
name |
variant |
variant_id |
feature_id |
28876 |
Двигатель |
Бензин/газовый (пропан) |
14391 |
735 |
28876 |
Мощность двигателя, л.с. |
106.8 |
14394 |
737 |
28876 |
Габариты техники д.ш.в., мм |
6709*2068*2137 (высота по кабине) |
14397 |
738 |
28876 |
Грузоподъемность, кг |
1500 |
9410 |
741 |
28876 |
Колесная формула |
4x2 |
8752 |
744 |
28876 |
Объем кузова, м3 |
14.5 |
13986 |
747 |
28876 |
Тип двигателя |
Бензин (газ) |
11036 |
751 |
28876 |
Страна производитель |
Россия |
9729 |
758 |