Query time 0.00102
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "112.01"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "20.00"
},
"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": 20,
"rows_produced_per_join": 20,
"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 ('411','412','413','414','415','416','417','418','419','420','421','263','264','265','266','267')))",
"cost_info": {
"read_cost": "40.01",
"eval_cost": "4.00",
"prefix_cost": "44.01",
"data_read_per_join": "1K"
},
"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": 20,
"filtered": "100.00",
"cost_info": {
"read_cost": "20.00",
"eval_cost": "4.00",
"prefix_cost": "68.01",
"data_read_per_join": "15K"
},
"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": 20,
"filtered": "100.00",
"cost_info": {
"read_cost": "20.00",
"eval_cost": "4.00",
"prefix_cost": "92.01",
"data_read_per_join": "11K"
},
"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 |
3614221819579-2.jpg |
640 |
640 |
N |
854 |
421 |
product |
2831 |
A |
1 |
|
2831 |
0 |
3614221819579.jpg |
1000 |
750 |
N |
853 |
421 |
product |
2830 |
A |
2 |
|
2830 |
0 |
737052834139-2.jpg |
800 |
1000 |
N |
549 |
263 |
product |
2526 |
A |
10 |
|
2526 |
0 |
737052833897-2.jpg |
1000 |
1000 |
N |
551 |
264 |
product |
2528 |
A |
10 |
|
2528 |
0 |
737052497167-2.jpg |
486 |
750 |
N |
553 |
265 |
product |
2530 |
A |
10 |
|
2530 |
0 |
737052968025-2.jpg |
750 |
750 |
N |
555 |
266 |
product |
2532 |
A |
10 |
|
2532 |
0 |
737052967981-2.jpg |
350 |
537 |
N |
557 |
267 |
product |
2534 |
A |
10 |
|
2534 |
0 |
737052887289-2.jpg |
600 |
567 |
N |
841 |
411 |
product |
2818 |
A |
10 |
|
2818 |
0 |
3423473021063-2.jpg |
600 |
600 |
N |
843 |
412 |
product |
2820 |
A |
10 |
|
2820 |
0 |
3614221252376-2.jpg |
500 |
375 |
N |
852 |
420 |
product |
2829 |
A |
10 |
|
2829 |