Query time 0.00112
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "116.81"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "21.00"
},
"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": 21,
"rows_produced_per_join": 21,
"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 ('490','491','492','493','494','495','496','497','498','499','450','451','452','453','454','455')))",
"cost_info": {
"read_cost": "41.21",
"eval_cost": "4.20",
"prefix_cost": "45.41",
"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": 21,
"filtered": "100.00",
"cost_info": {
"read_cost": "21.00",
"eval_cost": "4.20",
"prefix_cost": "70.61",
"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": 21,
"filtered": "100.00",
"cost_info": {
"read_cost": "21.00",
"eval_cost": "4.20",
"prefix_cost": "95.81",
"data_read_per_join": "12K"
},
"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 |
3145891233209-2.jpg |
1024 |
1024 |
N |
933 |
450 |
product |
2910 |
A |
10 |
|
2910 |
0 |
3145891236309-2.jpg |
3840 |
3840 |
N |
935 |
451 |
product |
2912 |
A |
10 |
|
2912 |
0 |
3145891297300-2.jpg |
1000 |
1000 |
N |
937 |
452 |
product |
2914 |
A |
10 |
|
2914 |
0 |
3145891184600-2.jpg |
1024 |
1024 |
N |
939 |
453 |
product |
2916 |
A |
10 |
|
2916 |
0 |
3145891074604-2.jpg |
954 |
1192 |
N |
941 |
454 |
product |
2918 |
A |
10 |
|
2918 |
0 |
3145891265200-2.jpg |
500 |
500 |
N |
943 |
455 |
product |
2920 |
A |
10 |
|
2920 |
0 |
3346470135819-2.jpg |
800 |
800 |
N |
1014 |
490 |
product |
2991 |
A |
10 |
|
2991 |
0 |
3346470132245-2.jpg |
500 |
500 |
N |
1016 |
491 |
product |
2993 |
A |
10 |
|
2993 |
0 |
3346470132726-2.jpg |
375 |
500 |
N |
1018 |
492 |
product |
2995 |
A |
10 |
|
2995 |
0 |
3346470116375-2.jpg |
480 |
480 |
N |
1020 |
493 |
product |
2997 |
A |
10 |
|
2997 |
0 |
3346470113558-2.jpg |
1000 |
1000 |
N |
1022 |
494 |
product |
2999 |
A |
10 |
|
2999 |
0 |
3346470113626-2.jpg |
1280 |
1280 |
N |
1024 |
495 |
product |
3001 |
A |
10 |
|
3001 |
0 |
3346470417694-2.jpg |
1000 |
1000 |
N |
1026 |
496 |
product |
3003 |
A |
10 |
|
3003 |
0 |
3346470132047-2.jpg |
1000 |
1000 |
N |
1028 |
497 |
product |
3005 |
A |
10 |
|
3005 |
0 |
3346470303775-2.jpg |
1200 |
1132 |
N |
1030 |
498 |
product |
3007 |
A |
10 |
|
3007 |
0 |
3346470303607-2.jpg |
1000 |
1000 |
N |
1032 |
499 |
product |
3009 |
A |
10 |
|
3009 |