Query time 0.00121
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "188.81"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "36.00"
},
"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": 36,
"rows_produced_per_join": 36,
"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 ('438','439','440','441','442','443','444','445','446','447','448','449','310','311','312','313')))",
"cost_info": {
"read_cost": "59.21",
"eval_cost": "7.20",
"prefix_cost": "66.41",
"data_read_per_join": "3K"
},
"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": 36,
"filtered": "100.00",
"cost_info": {
"read_cost": "36.00",
"eval_cost": "7.20",
"prefix_cost": "109.61",
"data_read_per_join": "27K"
},
"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": 36,
"filtered": "100.00",
"cost_info": {
"read_cost": "36.00",
"eval_cost": "7.20",
"prefix_cost": "152.81",
"data_read_per_join": "21K"
},
"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 |
|
|
|
|
643 |
310 |
product |
2620 |
A |
10 |
|
|
0 |
|
|
|
|
645 |
311 |
product |
2622 |
A |
10 |
|
|
0 |
|
|
|
|
647 |
312 |
product |
2624 |
A |
10 |
|
|
0 |
|
|
|
|
649 |
313 |
product |
2626 |
A |
10 |
|
|
0 |
|
|
|
|
892 |
438 |
product |
2869 |
A |
10 |
|
|
0 |
|
|
|
|
894 |
439 |
product |
2871 |
A |
10 |
|
|
0 |
|
|
|
|
896 |
440 |
product |
2873 |
A |
10 |
|
|
0 |
|
|
|
|
898 |
441 |
product |
2875 |
A |
10 |
|
|
0 |
|
|
|
|
900 |
442 |
product |
2877 |
A |
10 |
|
|
0 |
|
|
|
|
902 |
443 |
product |
2879 |
A |
10 |
|
|
0 |
|
|
|
|
904 |
444 |
product |
2881 |
A |
10 |
|
|
0 |
|
|
|
|
906 |
445 |
product |
2883 |
A |
10 |
|
|
0 |
|
|
|
|
908 |
446 |
product |
2885 |
A |
10 |
|
|
0 |
|
|
|
|
910 |
447 |
product |
2887 |
A |
10 |
|
|
0 |
|
|
|
|
912 |
448 |
product |
2889 |
A |
10 |
|
|
0 |
|
|
|
|
914 |
449 |
product |
2891 |
A |
10 |
|
|
0 |
|
|
|
|
920 |
438 |
product |
2897 |
A |
10 |
|
|
0 |
|
|
|
|
921 |
439 |
product |
2898 |
A |
10 |
|
|
0 |
|
|
|
|
922 |
440 |
product |
2899 |
A |
10 |
|
|
0 |
|
|
|
|
923 |
441 |
product |
2900 |
A |
10 |
|
|
0 |
|
|
|
|
924 |
442 |
product |
2901 |
A |
10 |
|
|
0 |
|
|
|
|
925 |
443 |
product |
2902 |
A |
10 |
|
|
0 |
|
|
|
|
926 |
444 |
product |
2903 |
A |
10 |
|
|
0 |
|
|
|
|
927 |
445 |
product |
2904 |
A |
10 |
|
|
0 |
|
|
|
|
928 |
446 |
product |
2905 |
A |
10 |
|
|
0 |
|
|
|
|
929 |
447 |
product |
2906 |
A |
10 |
|
|
0 |
|
|
|
|
930 |
448 |
product |
2907 |
A |
10 |
|
|
0 |
|
|
|
|
931 |
449 |
product |
2908 |
A |
10 |
|
|