Query time 0.01103
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "75.86"
},
"ordering_operation": {
"using_temporary_table": true,
"using_filesort": true,
"nested_loop": [
{
"table": {
"table_name": "v",
"access_type": "range",
"possible_keys": [
"PRIMARY",
"fl",
"variant_id",
"lang_code",
"product_id",
"fpl",
"idx_product_feature_variant_id"
],
"key": "idx_product_feature_variant_id",
"used_key_parts": [
"product_id"
],
"key_length": "3",
"rows_examined_per_scan": 24,
"rows_produced_per_join": 23,
"filtered": "99.97",
"index_condition": "(((`jmj_test`.`v`.`product_id` in (1732,1623)) and (`jmj_test`.`v`.`lang_code` = 'en')) and (`jmj_test`.`v`.`feature_id` is not null))",
"cost_info": {
"read_cost": "30.81",
"eval_cost": "4.80",
"prefix_cost": "35.61",
"data_read_per_join": "18K"
},
"used_columns": [
"feature_id",
"product_id",
"variant_id",
"value",
"value_int",
"lang_code"
]
}
},
{
"table": {
"table_name": "f",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY",
"status"
],
"key": "PRIMARY",
"used_key_parts": [
"feature_id"
],
"key_length": "3",
"ref": [
"jmj_test.v.feature_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 2,
"filtered": "9.95",
"cost_info": {
"read_cost": "23.99",
"eval_cost": "0.48",
"prefix_cost": "64.40",
"data_read_per_join": "1K"
},
"used_columns": [
"feature_id",
"feature_type",
"categories_path",
"parent_id",
"display_on_catalog",
"status",
"position"
],
"attached_condition": "((`jmj_test`.`f`.`status` = 'A') and (`jmj_test`.`f`.`display_on_catalog` = 'Y') and ((`jmj_test`.`f`.`categories_path` = '') or find_in_set(2,`jmj_test`.`f`.`categories_path`) or find_in_set(46,`jmj_test`.`f`.`categories_path`) or find_in_set(64,`jmj_test`.`f`.`categories_path`)) and (if(`jmj_test`.`f`.`parent_id`,(/* select#2 */ select `jmj_test`.`df`.`status` from `jmj_test`.`jmj_product_features` `df` where (`jmj_test`.`df`.`feature_id` = `jmj_test`.`f`.`parent_id`)),'A') = 'A') and ((`jmj_test`.`v`.`variant_id` <> 0) or ((`jmj_test`.`f`.`feature_type` <> 'C') and (`jmj_test`.`v`.`value` <> '')) or (`jmj_test`.`f`.`feature_type` = 'C') or (`jmj_test`.`v`.`value_int` <> '')))",
"attached_subqueries": [
{
"dependent": true,
"cacheable": false,
"query_block": {
"select_id": 2,
"cost_info": {
"query_cost": "1.20"
},
"table": {
"table_name": "df",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"feature_id"
],
"key_length": "3",
"ref": [
"jmj_test.f.parent_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 1,
"filtered": "100.00",
"cost_info": {
"read_cost": "1.00",
"eval_cost": "0.20",
"prefix_cost": "1.20",
"data_read_per_join": "440"
},
"used_columns": [
"feature_id",
"status"
]
}
}
}
]
}
},
{
"table": {
"table_name": "fd",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"feature_id",
"lang_code"
],
"key_length": "9",
"ref": [
"jmj_test.v.feature_id",
"const"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 2,
"filtered": "100.00",
"cost_info": {
"read_cost": "2.39",
"eval_cost": "0.48",
"prefix_cost": "67.27",
"data_read_per_join": "5K"
},
"used_columns": [
"feature_id",
"description",
"prefix",
"suffix",
"lang_code"
]
}
},
{
"table": {
"table_name": "fv",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"variant_id"
],
"key_length": "3",
"ref": [
"jmj_test.v.variant_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 2,
"filtered": "100.00",
"cost_info": {
"read_cost": "2.39",
"eval_cost": "0.48",
"prefix_cost": "70.13",
"data_read_per_join": "3K"
},
"used_columns": [
"variant_id",
"position"
]
}
},
{
"table": {
"table_name": "vd",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"variant_id",
"lang_code"
],
"key_length": "9",
"ref": [
"jmj_test.fv.variant_id",
"const"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 2,
"filtered": "100.00",
"cost_info": {
"read_cost": "2.39",
"eval_cost": "0.48",
"prefix_cost": "73.00",
"data_read_per_join": "7K"
},
"used_columns": [
"variant_id",
"variant",
"lang_code"
]
}
},
{
"table": {
"table_name": "gf",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"feature_id"
],
"key_length": "3",
"ref": [
"jmj_test.f.parent_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 2,
"filtered": "100.00",
"cost_info": {
"read_cost": "2.39",
"eval_cost": "0.48",
"prefix_cost": "75.86",
"data_read_per_join": "1K"
},
"used_columns": [
"feature_id",
"feature_type",
"position"
],
"attached_condition": "<if>(is_not_null_compl(gf), (`jmj_test`.`gf`.`feature_type` = 'G'), true)"
}
}
]
}
}
}
Result
| product_id |
feature_id |
value |
value_int |
variant_id |
feature_type |
description |
prefix |
suffix |
variant |
parent_id |
position |
gposition |
| 1623 |
280 |
|
|
2103 |
S |
Color |
|
|
black |
0 |
5000 |
|
| 1732 |
280 |
|
|
2131 |
S |
Color |
|
|
lightcyan |
0 |
5000 |
|
| 1623 |
280 |
|
|
2206 |
S |
Color |
|
|
rosybrown |
0 |
5000 |
|
| 1623 |
255 |
|
|
1688 |
M |
Size |
|
|
28 |
0 |
4999 |
|
| 1732 |
255 |
|
|
1688 |
M |
Size |
|
|
28 |
0 |
4999 |
|
| 1623 |
255 |
|
|
1689 |
M |
Size |
|
|
30 |
0 |
4999 |
|
| 1732 |
255 |
|
|
1689 |
M |
Size |
|
|
30 |
0 |
4999 |
|
| 1623 |
255 |
|
|
1690 |
M |
Size |
|
|
32 |
0 |
4999 |
|
| 1732 |
255 |
|
|
1690 |
M |
Size |
|
|
32 |
0 |
4999 |
|
| 1623 |
255 |
|
|
1691 |
M |
Size |
|
|
34 |
0 |
4999 |
|
| 1732 |
255 |
|
|
1691 |
M |
Size |
|
|
34 |
0 |
4999 |
|
| 1623 |
255 |
|
|
1692 |
M |
Size |
|
|
36 |
0 |
4999 |
|
| 1732 |
255 |
|
|
1692 |
M |
Size |
|
|
36 |
0 |
4999 |
|