Query time 0.00111
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "107.21"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "19.00"
},
"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": 19,
"rows_produced_per_join": 19,
"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 ('571','572','573','574','575','576','577','578','579','580','551','552','553','554','555','556')))",
"cost_info": {
"read_cost": "38.81",
"eval_cost": "3.80",
"prefix_cost": "42.61",
"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.detailed_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 19,
"filtered": "100.00",
"cost_info": {
"read_cost": "19.00",
"eval_cost": "3.80",
"prefix_cost": "65.41",
"data_read_per_join": "14K"
},
"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": 19,
"filtered": "100.00",
"cost_info": {
"read_cost": "19.00",
"eval_cost": "3.80",
"prefix_cost": "88.21",
"data_read_per_join": "11K"
},
"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 |
3614221031575.jpg |
1200 |
1200 |
N |
1134 |
551 |
product |
3111 |
M |
0 |
|
3111 |
0 |
3614221031414.jpg |
920 |
1380 |
N |
1136 |
552 |
product |
3113 |
M |
0 |
|
3113 |
0 |
3607345730738.jpg |
500 |
500 |
N |
1138 |
553 |
product |
3115 |
M |
0 |
|
3115 |
0 |
3614223519576.jpg |
800 |
800 |
N |
1140 |
554 |
product |
3117 |
M |
0 |
|
3117 |
0 |
3607346236581.jpg |
500 |
500 |
N |
1142 |
555 |
product |
3119 |
M |
0 |
|
3119 |
0 |
3607346236543.jpg |
500 |
500 |
N |
1144 |
556 |
product |
3121 |
M |
0 |
|
3121 |
0 |
3614270265884.jpg |
1320 |
1080 |
N |
1173 |
571 |
product |
3150 |
M |
0 |
|
3150 |
0 |
3614270175572.jpg |
442 |
361 |
N |
1175 |
572 |
product |
3152 |
M |
0 |
|
3152 |
0 |
3614272026193.jpg |
600 |
492 |
N |
1177 |
573 |
product |
3154 |
M |
0 |
|
3154 |
0 |
3605533040706.jpg |
500 |
500 |
N |
1179 |
574 |
product |
3156 |
M |
0 |
|
3156 |
0 |
3614271220431.jpg |
750 |
750 |
N |
1181 |
575 |
product |
3158 |
M |
0 |
|
3158 |
0 |
3614270829529.jpg |
1000 |
750 |
N |
1183 |
576 |
product |
3160 |
M |
0 |
|
3160 |
0 |
3147758029390.jpg |
500 |
498 |
N |
1185 |
577 |
product |
3162 |
M |
0 |
|
3162 |
0 |
3605532431147.jpg |
1000 |
1000 |
N |
1187 |
578 |
product |
3164 |
M |
0 |
|
3164 |
0 |
3147758155112.jpg |
1000 |
1000 |
N |
1189 |
579 |
product |
3166 |
M |
0 |
|
3166 |
0 |
3605532209067.jpg |
1000 |
1000 |
N |
1191 |
580 |
product |
3168 |
M |
0 |
|
3168 |