Query time 0.00083
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "16.27"
},
"nested_loop": [
{
"table": {
"table_name": "PFV",
"access_type": "range",
"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",
"rows_examined_per_scan": 9,
"rows_produced_per_join": 9,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "1.43",
"eval_cost": "0.90",
"prefix_cost": "2.33",
"data_read_per_join": "6K"
},
"used_columns": [
"feature_id",
"product_id",
"variant_id"
],
"attached_condition": "(`dev2`.`PFV`.`product_id` in ('30257','30259','8864','8861','8858'))"
}
},
{
"table": {
"table_name": "P",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY",
"cscart_products_product_id_index"
],
"key": "PRIMARY",
"used_key_parts": [
"product_id"
],
"key_length": "3",
"ref": [
"dev2.PFV.product_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 9,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "2.25",
"eval_cost": "0.90",
"prefix_cost": "5.48",
"data_read_per_join": "67K"
},
"used_columns": [
"product_id"
]
}
},
{
"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": 7,
"filtered": "80.46",
"cost_info": {
"read_cost": "2.25",
"eval_cost": "0.72",
"prefix_cost": "8.63",
"data_read_per_join": "11K"
},
"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": 7,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "1.81",
"eval_cost": "0.72",
"prefix_cost": "11.16",
"data_read_per_join": "10K"
},
"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": 7,
"filtered": "100.00",
"cost_info": {
"read_cost": "1.81",
"eval_cost": "0.73",
"prefix_cost": "13.70",
"data_read_per_join": "20K"
},
"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": 7,
"filtered": "100.00",
"cost_info": {
"read_cost": "1.83",
"eval_cost": "0.73",
"prefix_cost": "16.27",
"data_read_per_join": "31K"
},
"used_columns": [
"variant_id",
"variant"
]
}
}
]
}
}
Result
product_id |
name |
variant |
variant_id |
feature_id |
8861 |
Мощность двигателя, л.с. |
154 |
11682 |
737 |
8861 |
Грузоподъемность, кг |
5000 |
9399 |
741 |
8861 |
Колесная формула |
4x2 |
8752 |
744 |
8861 |
Объем кузова, м3 |
3.7 |
11683 |
747 |