Query time 0.00089
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "260.81"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "51.00"
},
"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": 51,
"rows_produced_per_join": 51,
"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 ('29891','29892','29893','29894','29895','29896','29897','29898','29899','29900','29901','29902','29903','29904','29905','29906')))",
"cost_info": {
"read_cost": "77.21",
"eval_cost": "10.20",
"prefix_cost": "87.41",
"data_read_per_join": "4K"
},
"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": 51,
"filtered": "100.00",
"cost_info": {
"read_cost": "51.00",
"eval_cost": "10.20",
"prefix_cost": "148.61",
"data_read_per_join": "39K"
},
"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": 51,
"filtered": "100.00",
"cost_info": {
"read_cost": "51.00",
"eval_cost": "10.20",
"prefix_cost": "209.81",
"data_read_per_join": "30K"
},
"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 |
|
|
|
|
47417 |
29906 |
product |
49379 |
M |
0 |
|
|
0 |
|
|
|
|
47418 |
29905 |
product |
49380 |
M |
0 |
|
|
0 |
|
|
|
|
47420 |
29903 |
product |
49382 |
M |
0 |
|
|
0 |
|
|
|
|
47421 |
29902 |
product |
49383 |
M |
0 |
|
|
0 |
|
|
|
|
47422 |
29901 |
product |
49384 |
M |
0 |
|
|
0 |
|
|
|
|
47423 |
29900 |
product |
49385 |
M |
0 |
|
|
0 |
|
|
|
|
47424 |
29898 |
product |
49386 |
M |
0 |
|
|
0 |
|
|
|
|
47425 |
29897 |
product |
49387 |
M |
0 |
|
|
0 |
|
|
|
|
47426 |
29896 |
product |
49388 |
M |
0 |
|
|
0 |
|
|
|
|
47429 |
29895 |
product |
49390 |
M |
0 |
|
|
0 |
|
|
|
|
47430 |
29893 |
product |
49391 |
M |
0 |
|
|
0 |
|
|
|
|
47432 |
29891 |
product |
49393 |
M |
0 |
|
|
0 |
|
|
|
|
47724 |
29899 |
product |
49685 |
M |
0 |
|
|
0 |
|
|
|
|
47725 |
29894 |
product |
49686 |
M |
0 |
|
|
0 |
|
|
|
|
81513 |
29904 |
product |
83456 |
M |
0 |
|
|
0 |
|
|
|
|
47431 |
29892 |
product |
49392 |
M |
1 |
|
|