Query time 0.00078
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "35.52"
},
"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": 20,
"rows_produced_per_join": 20,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "2.54",
"eval_cost": "2.00",
"prefix_cost": "4.54",
"data_read_per_join": "15K"
},
"used_columns": [
"feature_id",
"product_id",
"variant_id"
],
"attached_condition": "(`dev2`.`PFV`.`product_id` in ('26315','25964','26040','25912','27031','26005','27172','27171','27173','28881','32465'))"
}
},
{
"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": 20,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "5.00",
"eval_cost": "2.00",
"prefix_cost": "11.54",
"data_read_per_join": "150K"
},
"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": 16,
"filtered": "80.46",
"cost_info": {
"read_cost": "5.00",
"eval_cost": "1.61",
"prefix_cost": "18.54",
"data_read_per_join": "25K"
},
"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": 16,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "4.02",
"eval_cost": "1.61",
"prefix_cost": "24.17",
"data_read_per_join": "24K"
},
"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": 16,
"filtered": "100.00",
"cost_info": {
"read_cost": "4.02",
"eval_cost": "1.63",
"prefix_cost": "29.82",
"data_read_per_join": "44K"
},
"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": 16,
"filtered": "100.00",
"cost_info": {
"read_cost": "4.07",
"eval_cost": "1.63",
"prefix_cost": "35.52",
"data_read_per_join": "69K"
},
"used_columns": [
"variant_id",
"variant"
]
}
}
]
}
}
Result
product_id |
name |
variant |
variant_id |
feature_id |
28881 |
Мощность двигателя, л.с. |
106.8 |
14394 |
737 |
28881 |
Колесная формула |
4x4 |
8961 |
744 |
28881 |
Шины |
195/75R16C |
14369 |
745 |
28881 |
Объем топливного бака, л. |
80 |
9038 |
746 |
28881 |
Максимальная скорость, км/ч |
130 |
14336 |
748 |
28881 |
Количество мест в автобусе |
8+1 |
14396 |
750 |
32465 |
Мощность двигателя, л.с. |
273 |
8764 |
737 |
32465 |
Колесная формула |
6x6 |
8735 |
744 |
32465 |
Объем топливного бака, л. |
300 |
9494 |
746 |
32465 |
Максимальная скорость, км/ч |
80 |
9105 |
748 |
32465 |
Количество мест в автобусе |
28+2 |
11719 |
750 |