Query time 0.00110
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "34.42"
},
"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": 8,
"rows_produced_per_join": 8,
"filtered": "100.00",
"cost_info": {
"read_cost": "9.62",
"eval_cost": "1.60",
"prefix_cost": "11.22",
"data_read_per_join": "128"
},
"used_columns": [
"product_id",
"parent_product_id",
"group_id"
],
"attached_condition": "(`webmarco`.`p`.`product_id` in (262359,262367,262370,262374,262376,262379,262380,262391))"
}
},
{
"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": 8,
"filtered": "100.00",
"cost_info": {
"read_cost": "8.00",
"eval_cost": "1.60",
"prefix_cost": "20.82",
"data_read_per_join": "3K"
},
"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": 11,
"filtered": "100.00",
"cost_info": {
"read_cost": "11.34",
"eval_cost": "2.27",
"prefix_cost": "34.42",
"data_read_per_join": "1K"
},
"used_columns": [
"feature_id",
"purpose",
"group_id"
]
}
}
]
}
}
Result
feature_id |
purpose |
product_id |
parent_product_id |
id |
code |
932 |
group_variation_catalog_item |
262359 |
0 |
6687 |
PV-A64AE720F |
932 |
group_variation_catalog_item |
262367 |
0 |
6688 |
PV-C290DF171 |
932 |
group_variation_catalog_item |
262370 |
0 |
6689 |
PV-F20768D91 |
897 |
group_variation_catalog_item |
262376 |
0 |
6690 |
PV-9E6C2009E |
897 |
group_variation_catalog_item |
262380 |
0 |
6692 |
PV-FEE44F36A |
897 |
group_variation_catalog_item |
262391 |
0 |
6693 |
PV-85DFF46F5 |