Query time 0.00108
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "121.61"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "22.00"
},
"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": 22,
"rows_produced_per_join": 22,
"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 ('473','474','475','476','477','478','479','480','481','482','483','484','485','486','487','488')))",
"cost_info": {
"read_cost": "42.41",
"eval_cost": "4.40",
"prefix_cost": "46.81",
"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": 22,
"filtered": "100.00",
"cost_info": {
"read_cost": "22.00",
"eval_cost": "4.40",
"prefix_cost": "73.21",
"data_read_per_join": "16K"
},
"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": 22,
"filtered": "100.00",
"cost_info": {
"read_cost": "22.00",
"eval_cost": "4.40",
"prefix_cost": "99.61",
"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 |
3346470111417-2.jpg |
1000 |
1000 |
N |
981 |
473 |
product |
2958 |
A |
10 |
|
2958 |
0 |
3346470114814-2.jpg |
800 |
1059 |
N |
984 |
475 |
product |
2961 |
A |
10 |
|
2961 |
0 |
3346470133532-2.jpg |
201 |
250 |
N |
986 |
476 |
product |
2963 |
A |
10 |
|
2963 |
0 |
3346470116559-2.jpg |
814 |
1400 |
N |
988 |
477 |
product |
2965 |
A |
10 |
|
2965 |
0 |
3346470117303-2.jpg |
1192 |
1192 |
N |
990 |
478 |
product |
2967 |
A |
10 |
|
2967 |
0 |
3346470117310-2.jpg |
225 |
225 |
N |
992 |
479 |
product |
2969 |
A |
10 |
|
2969 |
0 |
3346470133181-2.jpg |
500 |
500 |
N |
994 |
480 |
product |
2971 |
A |
10 |
|
2971 |
0 |
3346470114746-2.jpg |
225 |
225 |
N |
996 |
481 |
product |
2973 |
A |
10 |
|
2973 |
0 |
3346470260542-2.jpg |
600 |
600 |
N |
998 |
482 |
product |
2975 |
A |
10 |
|
2975 |
0 |
3346470302297-2.jpg |
600 |
600 |
N |
1000 |
483 |
product |
2977 |
A |
10 |
|
2977 |
0 |
3346470303652-2.jpg |
500 |
500 |
N |
1002 |
484 |
product |
2979 |
A |
10 |
|
2979 |
0 |
3346470109667-2.jpg |
225 |
225 |
N |
1004 |
485 |
product |
2981 |
A |
10 |
|
2981 |
0 |
3346470303430-2.jpg |
600 |
600 |
N |
1006 |
486 |
product |
2983 |
A |
10 |
|
2983 |
0 |
3346470424661-2.jpg |
400 |
400 |
N |
1008 |
487 |
product |
2985 |
A |
10 |
|
2985 |
0 |
3346470133990-2.jpg |
432 |
432 |
N |
1010 |
488 |
product |
2987 |
A |
10 |
|
2987 |