Query time 0.00097
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "32.51"
},
"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": 17,
"rows_produced_per_join": 17,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "2.16",
"eval_cost": "1.70",
"prefix_cost": "3.86",
"data_read_per_join": "13K"
},
"used_columns": [
"feature_id",
"product_id",
"variant_id"
],
"attached_condition": "(`dev2`.`PFV`.`product_id` in ('30273','28972','28974','28952','14273'))"
}
},
{
"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": 17,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "4.25",
"eval_cost": "1.70",
"prefix_cost": "9.81",
"data_read_per_join": "128K"
},
"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": 13,
"filtered": "80.46",
"cost_info": {
"read_cost": "4.25",
"eval_cost": "1.37",
"prefix_cost": "15.76",
"data_read_per_join": "21K"
},
"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": 13,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "5.79",
"eval_cost": "1.37",
"prefix_cost": "22.91",
"data_read_per_join": "20K"
},
"used_columns": [
"variant_id"
]
}
},
{
"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": 13,
"filtered": "100.00",
"cost_info": {
"read_cost": "3.42",
"eval_cost": "1.37",
"prefix_cost": "27.70",
"data_read_per_join": "58K"
},
"used_columns": [
"variant_id",
"variant"
]
}
},
{
"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": 13,
"filtered": "100.00",
"cost_info": {
"read_cost": "3.42",
"eval_cost": "1.39",
"prefix_cost": "32.51",
"data_read_per_join": "38K"
},
"used_columns": [
"feature_id",
"internal_name"
]
}
}
]
}
}
Result
product_id |
name |
variant |
variant_id |
feature_id |
28952 |
Двигатель |
Дизельный ЯМЗ 53345 |
14405 |
735 |
28952 |
Мощность двигателя, л.с. |
169 |
10098 |
737 |
28952 |
Страна производитель |
Россия |
9729 |
758 |
28952 |
Крутящий момент |
660 |
14418 |
905 |
28972 |
Двигатель |
Дизельный ЯМЗ 53345 |
14405 |
735 |
28972 |
Мощность двигателя, л.с. |
169 |
10098 |
737 |
28972 |
Страна производитель |
Россия |
9729 |
758 |
28972 |
Крутящий момент |
660 |
14418 |
905 |
28974 |
Двигатель |
Дизельный ЯМЗ 53345 |
14405 |
735 |
28974 |
Мощность двигателя, л.с. |
169 |
10098 |
737 |
28974 |
Страна производитель |
Россия |
9729 |
758 |
28974 |
Крутящий момент |
660 |
14418 |
905 |
30273 |
Двигатель |
Дизельный ЯМЗ 53345 |
14405 |
735 |
30273 |
Мощность двигателя, л.с. |
169 |
10098 |
737 |
30273 |
Страна производитель |
Россия |
9729 |
758 |
30273 |
Крутящий момент |
660 |
14418 |
905 |