Query time 0.00083
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "45.41"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "8.00"
},
"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": 8,
"rows_produced_per_join": 8,
"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 ('15791','16012','16013','16014','16015','16367','16430')))",
"cost_info": {
"read_cost": "16.61",
"eval_cost": "1.60",
"prefix_cost": "18.21",
"data_read_per_join": "768"
},
"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": 8,
"filtered": "100.00",
"cost_info": {
"read_cost": "8.00",
"eval_cost": "1.60",
"prefix_cost": "27.81",
"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": 8,
"filtered": "100.00",
"cost_info": {
"read_cost": "8.00",
"eval_cost": "1.60",
"prefix_cost": "37.41",
"data_read_per_join": "4K"
},
"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 |
61vAR89LMYL.jpg |
401 |
500 |
N |
29694 |
15791 |
product |
31656 |
M |
0 |
|
31656 |
0 |
41H1YPTRD2L.jpg |
357 |
500 |
N |
29918 |
16012 |
product |
31880 |
M |
0 |
|
31880 |
0 |
51CBVy_R46L.jpg |
292 |
500 |
N |
29919 |
16013 |
product |
31881 |
M |
0 |
|
31881 |
0 |
51j0dQZHznL.jpg |
392 |
500 |
N |
29920 |
16014 |
product |
31882 |
M |
0 |
|
31882 |
0 |
51uNtROyMVL.jpg |
500 |
444 |
N |
29921 |
16015 |
product |
31883 |
M |
0 |
|
31883 |
0 |
41mjx2Nom2L.jpg |
500 |
500 |
N |
30273 |
16367 |
product |
32235 |
M |
0 |
|
32235 |
0 |
41JFGup1j6L.jpg |
500 |
295 |
N |
30338 |
16430 |
product |
32300 |
M |
0 |
|
32300 |