Query time 0.00114
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "217.21"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "39.00"
},
"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": 39,
"rows_produced_per_join": 39,
"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 ('29790','29793','29794','29796','29800','29801','29806','29813','29818','29825','29829','29832','29833','29834','29835','29836','29838','29843','29849','29850','29852','29854','29860','29862','29864','29876','29878','29904','29905','30349')))",
"cost_info": {
"read_cost": "76.81",
"eval_cost": "7.80",
"prefix_cost": "84.61",
"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.detailed_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 39,
"filtered": "100.00",
"cost_info": {
"read_cost": "39.00",
"eval_cost": "7.80",
"prefix_cost": "131.41",
"data_read_per_join": "29K"
},
"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": 39,
"filtered": "100.00",
"cost_info": {
"read_cost": "39.00",
"eval_cost": "7.80",
"prefix_cost": "178.21",
"data_read_per_join": "23K"
},
"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 |
411gy7jigVL.jpg |
500 |
485 |
N |
47268 |
29838 |
product |
49230 |
A |
1 |
|
49230 |
0 |
41BYWDmDGsL.jpg |
500 |
499 |
N |
47311 |
29813 |
product |
49273 |
A |
1 |
|
49273 |
0 |
41I89Y66-lL._SY450_.jpg |
449 |
450 |
N |
47329 |
29800 |
product |
49291 |
A |
1 |
|
49291 |
0 |
410fiDjjo5L._SX425_.jpg |
425 |
470 |
N |
47419 |
29904 |
product |
49381 |
A |
1 |
|
49381 |
0 |
31xtP5xueAL._SY450_.jpg |
448 |
450 |
N |
47330 |
29800 |
product |
49292 |
A |
2 |
|
49292 |