Query time 0.00111
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "150.41"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "28.00"
},
"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": 28,
"rows_produced_per_join": 28,
"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 ('268','269','270','271','272','273','274','275','276','277','278','279','280','281','282','283')))",
"cost_info": {
"read_cost": "49.61",
"eval_cost": "5.60",
"prefix_cost": "55.21",
"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.detailed_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 28,
"filtered": "100.00",
"cost_info": {
"read_cost": "28.00",
"eval_cost": "5.60",
"prefix_cost": "88.81",
"data_read_per_join": "21K"
},
"used_columns": [
"image_id",
"image_path",
"image_x",
"image_y",
"is_high_res"
],
"attached_condition": "<if>(is_not_null_compl(q_images), (`portal`.`q_images_links`.`detailed_id` = `portal`.`q_images`.`image_id`), true)"
}
},
{
"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": 28,
"filtered": "100.00",
"cost_info": {
"read_cost": "28.00",
"eval_cost": "5.60",
"prefix_cost": "122.41",
"data_read_per_join": "16K"
},
"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 |
737052497136-2.jpg |
500 |
500 |
N |
559 |
268 |
product |
2536 |
A |
10 |
|
2536 |
0 |
737052833859-2.jpg |
530 |
663 |
N |
561 |
269 |
product |
2538 |
A |
10 |
|
2538 |
0 |
737052968186-2.jpg |
400 |
500 |
N |
563 |
270 |
product |
2540 |
A |
10 |
|
2540 |
0 |
737052497259-2.jpg |
350 |
537 |
N |
566 |
272 |
product |
2543 |
A |
10 |
|
2543 |
0 |
737052834177-2.jpg |
612 |
696 |
N |
568 |
273 |
product |
2545 |
A |
10 |
|
2545 |
0 |
737052785172-2.jpg |
990 |
1526 |
N |
570 |
274 |
product |
2547 |
A |
10 |
|
2547 |
0 |
737052834092-2.jpg |
990 |
1526 |
N |
572 |
275 |
product |
2549 |
A |
10 |
|
2549 |
0 |
737052684079-2.jpg |
1200 |
1200 |
N |
574 |
276 |
product |
2551 |
A |
10 |
|
2551 |
0 |
737052833934-2.jpg |
990 |
1526 |
N |
576 |
277 |
product |
2553 |
A |
10 |
|
2553 |
0 |
737052497198-2.jpg |
1024 |
1024 |
N |
578 |
278 |
product |
2555 |
A |
10 |
|
2555 |
0 |
737052833972-2.jpg |
800 |
1000 |
N |
580 |
279 |
product |
2557 |
A |
10 |
|
2557 |
0 |
737052497228-2.jpg |
1024 |
1024 |
N |
582 |
280 |
product |
2559 |
A |
10 |
|
2559 |
0 |
3614223162963-2.jpg |
1000 |
1000 |
N |
584 |
281 |
product |
2561 |
A |
10 |
|
2561 |
0 |
3614223164462-2.jpg |
1000 |
1000 |
N |
586 |
282 |
product |
2563 |
A |
10 |
|
2563 |
0 |
088300104406-2.jpg |
845 |
490 |
N |
588 |
283 |
product |
2565 |
A |
10 |
|
2565 |