Query time 0.00052
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "10.78"
},
"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": "0.39",
"eval_cost": "0.80",
"prefix_cost": "1.19",
"data_read_per_join": "6K"
},
"used_columns": [
"feature_id",
"product_id",
"variant_id"
],
"attached_condition": "(`dev2`.`PFV`.`product_id` = '33200')"
}
},
{
"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": "3.99",
"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": "6.24",
"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,
"rows_produced_per_join": 6,
"filtered": "100.00",
"cost_info": {
"read_cost": "1.61",
"eval_cost": "0.65",
"prefix_cost": "8.50",
"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": "10.78",
"data_read_per_join": "27K"
},
"used_columns": [
"variant_id",
"variant"
]
}
}
]
}
}
Result
product_id |
name |
variant |
variant_id |
feature_id |
33200 |
Двигатель |
ISUZU 4HK1-TCG61 |
13099 |
735 |
33200 |
Мощность двигателя, л.с. |
190 |
9363 |
737 |
33200 |
Грузоподъемность, кг |
5100 |
14636 |
741 |
33200 |
Колесная формула |
4x2 |
8752 |
744 |
33200 |
Тип двигателя |
Дизельный |
9392 |
751 |
33200 |
Страна производитель |
Китай |
9730 |
758 |
33200 |
Объем двигателя |
5.193 |
14635 |
838 |
33200 |
Привод |
Задний |
13040 |
878 |