Query time 0.00118
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "17.63"
},
"nested_loop": [
{
"table": {
"table_name": "pfv",
"access_type": "range",
"possible_keys": [
"PRIMARY",
"fl",
"variant_id",
"lang_code",
"product_id",
"fpl",
"idx_product_feature_variant_id"
],
"key": "lang_code",
"used_key_parts": [
"lang_code",
"feature_id",
"product_id"
],
"key_length": "12",
"rows_examined_per_scan": 10,
"rows_produced_per_join": 10,
"filtered": "100.00",
"using_index": true,
"cost_info": {
"read_cost": "3.03",
"eval_cost": "2.00",
"prefix_cost": "5.03",
"data_read_per_join": "7K"
},
"used_columns": [
"feature_id",
"product_id",
"variant_id",
"lang_code"
],
"attached_condition": "((`webmarco`.`pfv`.`feature_id` = 626) and (`webmarco`.`pfv`.`product_id` in (414376,414377,414378,414379,414380,414381,414382,414383,414384,414385)) and (`webmarco`.`pfv`.`lang_code` = 'en'))"
}
},
{
"table": {
"table_name": "fv",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY",
"feature_id"
],
"key": "PRIMARY",
"used_key_parts": [
"variant_id"
],
"key_length": "3",
"ref": [
"webmarco.pfv.variant_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 0,
"filtered": "5.00",
"cost_info": {
"read_cost": "10.00",
"eval_cost": "0.10",
"prefix_cost": "17.03",
"data_read_per_join": "584"
},
"used_columns": [
"variant_id",
"feature_id",
"position"
],
"attached_condition": "(`webmarco`.`fv`.`feature_id` = 626)"
}
},
{
"table": {
"table_name": "fvd",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"variant_id",
"lang_code"
],
"key_length": "9",
"ref": [
"webmarco.pfv.variant_id",
"const"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 0,
"filtered": "100.00",
"cost_info": {
"read_cost": "0.50",
"eval_cost": "0.10",
"prefix_cost": "17.63",
"data_read_per_join": "2K"
},
"used_columns": [
"variant_id",
"variant",
"lang_code"
]
}
}
]
}
}
Result
feature_id |
product_id |
variant_id |
position |
variant |
626 |
414376 |
67587 |
0 |
1-2 Years |
626 |
414377 |
7159 |
0 |
2-3 Years |
626 |
414378 |
7168 |
10 |
11-12 Years |
626 |
414379 |
7169 |
11 |
12-13 Years |
626 |
414380 |
7170 |
12 |
13-14 Years |
626 |
414381 |
7160 |
2 |
3-4 Years |
626 |
414382 |
7161 |
3 |
4-5 Years |
626 |
414383 |
7162 |
4 |
5-6 Years |
626 |
414384 |
7163 |
5 |
6-7 Years |
626 |
414385 |
7164 |
6 |
7-8 Years |