Query time 0.00101
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "140.81"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "26.00"
},
"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": 26,
"rows_produced_per_join": 26,
"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 ('456','457','458','459','460','462','463','464','465','466','432','433','434','435','436','437')))",
"cost_info": {
"read_cost": "47.21",
"eval_cost": "5.20",
"prefix_cost": "52.41",
"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.image_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 26,
"filtered": "100.00",
"cost_info": {
"read_cost": "26.00",
"eval_cost": "5.20",
"prefix_cost": "83.61",
"data_read_per_join": "19K"
},
"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": 26,
"filtered": "100.00",
"cost_info": {
"read_cost": "26.00",
"eval_cost": "5.20",
"prefix_cost": "114.81",
"data_read_per_join": "15K"
},
"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 |
|
|
|
|
881 |
432 |
product |
2858 |
A |
10 |
|
|
0 |
|
|
|
|
883 |
433 |
product |
2860 |
A |
10 |
|
|
0 |
|
|
|
|
886 |
435 |
product |
2863 |
A |
10 |
|
|
0 |
|
|
|
|
888 |
436 |
product |
2865 |
A |
10 |
|
|
0 |
|
|
|
|
890 |
437 |
product |
2867 |
A |
10 |
|
|
0 |
|
|
|
|
915 |
432 |
product |
2892 |
A |
10 |
|
|
0 |
|
|
|
|
916 |
433 |
product |
2893 |
A |
10 |
|
|
0 |
|
|
|
|
917 |
435 |
product |
2894 |
A |
10 |
|
|
0 |
|
|
|
|
918 |
436 |
product |
2895 |
A |
10 |
|
|
0 |
|
|
|
|
919 |
437 |
product |
2896 |
A |
10 |
|
|
0 |
|
|
|
|
945 |
456 |
product |
2922 |
A |
10 |
|
|
0 |
|
|
|
|
947 |
457 |
product |
2924 |
A |
10 |
|
|
0 |
|
|
|
|
949 |
458 |
product |
2926 |
A |
10 |
|
|
0 |
|
|
|
|
951 |
459 |
product |
2928 |
A |
10 |
|
|
0 |
|
|
|
|
957 |
462 |
product |
2934 |
A |
10 |
|
|
0 |
|
|
|
|
959 |
463 |
product |
2936 |
A |
10 |
|
|
0 |
|
|
|
|
961 |
464 |
product |
2938 |
A |
10 |
|
|
0 |
|
|
|
|
963 |
465 |
product |
2940 |
A |
10 |
|
|
0 |
|
|
|
|
965 |
466 |
product |
2942 |
A |
10 |
|
|