Query time 0.00103
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "126.41"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "23.00"
},
"nested_loop": [
{
"table": {
"table_name": "q_images_links",
"access_type": "range",
"possible_keys": [
"object_id"
],
"key": "object_id",
"used_key_parts": [
"object_id",
"object_type",
"type"
],
"key_length": "81",
"rows_examined_per_scan": 23,
"rows_produced_per_join": 23,
"filtered": "100.00",
"index_condition": "((`portal`.`q_images_links`.`object_type` = 'product') and (`portal`.`q_images_links`.`type` = 'A') and (`portal`.`q_images_links`.`object_id` in ('379','380','381','382','383','384','385','386','387','388','389','390','391','392','393','394')))",
"cost_info": {
"read_cost": "43.61",
"eval_cost": "4.60",
"prefix_cost": "48.21",
"data_read_per_join": "2K"
},
"used_columns": [
"pair_id",
"object_id",
"object_type",
"image_id",
"detailed_id",
"type",
"position"
]
}
},
{
"table": {
"table_name": "q_images",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"image_id"
],
"key_length": "4",
"ref": [
"portal.q_images_links.image_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 23,
"filtered": "100.00",
"cost_info": {
"read_cost": "23.00",
"eval_cost": "4.60",
"prefix_cost": "75.81",
"data_read_per_join": "17K"
},
"used_columns": [
"image_id",
"image_path",
"image_x",
"image_y",
"is_high_res"
]
}
},
{
"table": {
"table_name": "q_common_descriptions",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"object_id",
"lang_code",
"object_holder"
],
"key_length": "107",
"ref": [
"portal.q_images.image_id",
"const",
"const"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 23,
"filtered": "100.00",
"cost_info": {
"read_cost": "23.00",
"eval_cost": "4.60",
"prefix_cost": "103.41",
"data_read_per_join": "13K"
},
"used_columns": [
"object_id",
"description",
"lang_code",
"object_holder"
],
"attached_condition": "<if>(is_not_null_compl(q_common_descriptions), (`portal`.`q_common_descriptions`.`object_id` = `portal`.`q_images`.`image_id`), true)"
}
}
]
}
}
}
Result
image_id |
image_path |
image_x |
image_y |
is_high_res |
pair_id |
object_id |
object_type |
detailed_id |
type |
position |
alt |
images_image_id |
0 |
|
|
|
|
779 |
379 |
product |
2756 |
A |
10 |
|
|
0 |
|
|
|
|
782 |
381 |
product |
2759 |
A |
10 |
|
|
0 |
|
|
|
|
784 |
382 |
product |
2761 |
A |
10 |
|
|
0 |
|
|
|
|
786 |
383 |
product |
2763 |
A |
10 |
|
|
0 |
|
|
|
|
788 |
384 |
product |
2765 |
A |
10 |
|
|
0 |
|
|
|
|
790 |
385 |
product |
2767 |
A |
10 |
|
|
0 |
|
|
|
|
792 |
386 |
product |
2769 |
A |
10 |
|
|
0 |
|
|
|
|
794 |
387 |
product |
2771 |
A |
10 |
|
|
0 |
|
|
|
|
796 |
388 |
product |
2773 |
A |
10 |
|
|
0 |
|
|
|
|
798 |
389 |
product |
2775 |
A |
10 |
|
|
0 |
|
|
|
|
800 |
390 |
product |
2777 |
A |
10 |
|
|
0 |
|
|
|
|
802 |
391 |
product |
2779 |
A |
10 |
|
|
0 |
|
|
|
|
804 |
392 |
product |
2781 |
A |
10 |
|
|
0 |
|
|
|
|
806 |
393 |
product |
2783 |
A |
10 |
|
|
0 |
|
|
|
|
808 |
394 |
product |
2785 |
A |
10 |
|
|