Query time 0.00112
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "102.41"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "18.00"
},
"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": 18,
"rows_produced_per_join": 18,
"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 ('8394','8395','8396','8397','8398','8399','8400','8401','8402','8403','8404','8405','8406','8407','8408','8409')))",
"cost_info": {
"read_cost": "37.61",
"eval_cost": "3.60",
"prefix_cost": "41.21",
"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.image_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 18,
"filtered": "100.00",
"cost_info": {
"read_cost": "18.00",
"eval_cost": "3.60",
"prefix_cost": "62.81",
"data_read_per_join": "13K"
},
"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": 18,
"filtered": "100.00",
"cost_info": {
"read_cost": "18.00",
"eval_cost": "3.60",
"prefix_cost": "84.41",
"data_read_per_join": "10K"
},
"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 |
|
|
|
|
17721 |
8394 |
product |
19683 |
A |
10 |
|
|
0 |
|
|
|
|
17724 |
8395 |
product |
19686 |
A |
10 |
|
|
0 |
|
|
|
|
17729 |
8397 |
product |
19691 |
A |
10 |
|
|
0 |
|
|
|
|
17732 |
8398 |
product |
19694 |
A |
10 |
|
|
0 |
|
|
|
|
17735 |
8399 |
product |
19697 |
A |
10 |
|
|
0 |
|
|
|
|
17738 |
8400 |
product |
19700 |
A |
10 |
|
|
0 |
|
|
|
|
17741 |
8401 |
product |
19703 |
A |
10 |
|
|
0 |
|
|
|
|
17744 |
8402 |
product |
19706 |
A |
10 |
|
|
0 |
|
|
|
|
17756 |
8403 |
product |
19718 |
A |
10 |
|
|
0 |
|
|
|
|
17759 |
8404 |
product |
19721 |
A |
10 |
|
|
0 |
|
|
|
|
17762 |
8405 |
product |
19724 |
A |
10 |
|
|
0 |
|
|
|
|
17765 |
8406 |
product |
19727 |
A |
10 |
|
|
0 |
|
|
|
|
17768 |
8407 |
product |
19730 |
A |
10 |
|
|
0 |
|
|
|
|
17771 |
8408 |
product |
19733 |
A |
10 |
|
|
0 |
|
|
|
|
17774 |
8409 |
product |
19736 |
A |
10 |
|
|
0 |
|
|
|
|
17722 |
8394 |
product |
19684 |
A |
20 |
|
|
0 |
|
|
|
|
17725 |
8395 |
product |
19687 |
A |
20 |
|
|
0 |
|
|
|
|
17727 |
8396 |
product |
19689 |
A |
20 |
|
|
0 |
|
|
|
|
17730 |
8397 |
product |
19692 |
A |
20 |
|
|
0 |
|
|
|
|
17733 |
8398 |
product |
19695 |
A |
20 |
|
|
0 |
|
|
|
|
17736 |
8399 |
product |
19698 |
A |
20 |
|
|
0 |
|
|
|
|
17739 |
8400 |
product |
19701 |
A |
20 |
|
|
0 |
|
|
|
|
17742 |
8401 |
product |
19704 |
A |
20 |
|
|
0 |
|
|
|
|
17745 |
8402 |
product |
19707 |
A |
20 |
|
|
0 |
|
|
|
|
17757 |
8403 |
product |
19719 |
A |
20 |
|
|
0 |
|
|
|
|
17760 |
8404 |
product |
19722 |
A |
20 |
|
|
0 |
|
|
|
|
17763 |
8405 |
product |
19725 |
A |
20 |
|
|
0 |
|
|
|
|
17766 |
8406 |
product |
19728 |
A |
20 |
|
|
0 |
|
|
|
|
17769 |
8407 |
product |
19731 |
A |
20 |
|
|
0 |
|
|
|
|
17772 |
8408 |
product |
19734 |
A |
20 |
|
|
0 |
|
|
|
|
17775 |
8409 |
product |
19737 |
A |
20 |
|
|