Query time 0.00116
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "21.52"
},
"nested_loop": [
{
"table": {
"table_name": "p",
"access_type": "range",
"possible_keys": [
"PRIMARY",
"idx_group_id"
],
"key": "PRIMARY",
"used_key_parts": [
"product_id"
],
"key_length": "3",
"rows_examined_per_scan": 5,
"rows_produced_per_join": 5,
"filtered": "100.00",
"cost_info": {
"read_cost": "6.02",
"eval_cost": "1.00",
"prefix_cost": "7.02",
"data_read_per_join": "80"
},
"used_columns": [
"product_id",
"parent_product_id",
"group_id"
],
"attached_condition": "(`webmarco`.`p`.`product_id` in (152080,81817,81812,81816,81814))"
}
},
{
"table": {
"table_name": "g",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"id"
],
"key_length": "3",
"ref": [
"webmarco.p.group_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 5,
"filtered": "100.00",
"cost_info": {
"read_cost": "5.00",
"eval_cost": "1.00",
"prefix_cost": "13.02",
"data_read_per_join": "1K"
},
"used_columns": [
"id",
"code"
]
}
},
{
"table": {
"table_name": "f",
"access_type": "ref",
"possible_keys": [
"idx_group_id"
],
"key": "idx_group_id",
"used_key_parts": [
"group_id"
],
"key_length": "3",
"ref": [
"webmarco.p.group_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 7,
"filtered": "100.00",
"cost_info": {
"read_cost": "7.09",
"eval_cost": "1.42",
"prefix_cost": "21.52",
"data_read_per_join": "736"
},
"used_columns": [
"feature_id",
"purpose",
"group_id"
]
}
}
]
}
}
Result
feature_id |
purpose |
product_id |
parent_product_id |
id |
code |
549 |
group_catalog_item |
81812 |
0 |
1096 |
PV-CC1507FCE |
549 |
group_catalog_item |
81814 |
0 |
1096 |
PV-CC1507FCE |
549 |
group_catalog_item |
81816 |
0 |
1096 |
PV-CC1507FCE |
549 |
group_catalog_item |
81817 |
0 |
1096 |
PV-CC1507FCE |