Query time 0.00086
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "52.21"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "9.00"
},
"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": 9,
"rows_produced_per_join": 9,
"filtered": "100.00",
"index_condition": "((`portal`.`q_images_links`.`object_type` = 'product') and (`portal`.`q_images_links`.`type` = 'M') and (`portal`.`q_images_links`.`object_id` in ('9967','9968','9972','9973','9974','9975','9976','9977','9978')))",
"cost_info": {
"read_cost": "19.81",
"eval_cost": "1.80",
"prefix_cost": "21.61",
"data_read_per_join": "864"
},
"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": 9,
"filtered": "100.00",
"cost_info": {
"read_cost": "9.00",
"eval_cost": "1.80",
"prefix_cost": "32.41",
"data_read_per_join": "6K"
},
"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": 9,
"filtered": "100.00",
"cost_info": {
"read_cost": "9.00",
"eval_cost": "1.80",
"prefix_cost": "43.21",
"data_read_per_join": "5K"
},
"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 |
WP-900209_2.jpg |
480 |
480 |
N |
19609 |
9974 |
product |
21571 |
M |
0 |
|
21571 |
0 |
WP-900211_1.jpg |
4000 |
4000 |
N |
19612 |
9976 |
product |
21574 |
M |
0 |
|
21574 |
0 |
WP-900004_1.jpg |
860 |
860 |
N |
19637 |
9972 |
product |
21599 |
M |
0 |
|
21599 |
0 |
WP-900208_1.jpg |
860 |
860 |
N |
19638 |
9973 |
product |
21600 |
M |
0 |
|
21600 |
0 |
WP-900210_1.jpg |
1308 |
1000 |
N |
19639 |
9975 |
product |
21601 |
M |
0 |
|
21601 |
0 |
WP-900213_1.jpg |
4000 |
4000 |
N |
19640 |
9978 |
product |
21602 |
M |
0 |
|
21602 |
0 |
s4.jpg |
1500 |
1500 |
N |
19652 |
9967 |
product |
21614 |
M |
0 |
|
21614 |
0 |
BOOK1_d64c9113-d55b-4e0d-b1e2-9ef4976315d2.jpg |
1500 |
1500 |
N |
19654 |
9968 |
product |
21616 |
M |
0 |
|
21616 |
0 |
2_4dyz-jz.jpg |
640 |
626 |
N |
82753 |
9977 |
product |
84696 |
M |
0 |
|
84696 |