Query time 0.00059
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "36.00"
},
"nested_loop": [
{
"table": {
"table_name": "gpf",
"access_type": "ref",
"possible_keys": [
"PRIMARY",
"idx_group_id"
],
"key": "idx_group_id",
"used_key_parts": [
"group_id"
],
"key_length": "4",
"ref": [
"const"
],
"rows_examined_per_scan": 2,
"rows_produced_per_join": 2,
"filtered": "100.00",
"cost_info": {
"read_cost": "2.00",
"eval_cost": "0.40",
"prefix_cost": "2.40",
"data_read_per_join": "224"
},
"used_columns": [
"feature_id",
"group_id"
]
}
},
{
"table": {
"table_name": "gp",
"access_type": "ref",
"possible_keys": [
"PRIMARY",
"idx_group_id"
],
"key": "idx_group_id",
"used_key_parts": [
"group_id"
],
"key_length": "4",
"ref": [
"const"
],
"rows_examined_per_scan": 7,
"rows_produced_per_join": 14,
"filtered": "100.00",
"cost_info": {
"read_cost": "14.00",
"eval_cost": "2.80",
"prefix_cost": "19.20",
"data_read_per_join": "224"
},
"used_columns": [
"product_id",
"group_id"
]
}
},
{
"table": {
"table_name": "pfv",
"access_type": "ref",
"possible_keys": [
"PRIMARY",
"fl",
"lang_code",
"product_id",
"fpl"
],
"key": "fpl",
"used_key_parts": [
"feature_id",
"product_id",
"lang_code"
],
"key_length": "12",
"ref": [
"portal.gpf.feature_id",
"portal.gp.product_id",
"const"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 14,
"filtered": "100.00",
"index_condition": "((`portal`.`gpf`.`feature_id` = `portal`.`pfv`.`feature_id`) and (`portal`.`pfv`.`product_id` = `portal`.`gp`.`product_id`))",
"cost_info": {
"read_cost": "14.00",
"eval_cost": "2.80",
"prefix_cost": "36.00",
"data_read_per_join": "10K"
},
"used_columns": [
"feature_id",
"product_id",
"variant_id",
"lang_code"
]
}
}
]
}
}
Result
feature_id |
product_id |
variant_id |
group_id |
74 |
1086 |
9865 |
40 |
74 |
3186 |
9865 |
40 |
74 |
3187 |
9899 |
40 |
74 |
3188 |
9899 |
40 |
74 |
3189 |
9905 |
40 |
74 |
3190 |
9905 |
40 |
74 |
3191 |
9905 |
40 |
74 |
3192 |
9914 |
40 |
74 |
3193 |
9914 |
40 |
73 |
1086 |
9802 |
40 |
73 |
3186 |
9803 |
40 |
73 |
3187 |
9802 |
40 |
73 |
3188 |
9803 |
40 |
73 |
3189 |
9802 |
40 |
73 |
3190 |
9803 |
40 |
73 |
3191 |
9804 |
40 |
73 |
3192 |
9802 |
40 |
73 |
3193 |
9803 |
40 |