Query time 0.00132
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "171.01"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "30.00"
},
"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": 30,
"rows_produced_per_join": 30,
"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 ('3741','3742','3743','3744','3745','3746','3747','3748','3749','3750','3751','3752','3753','3755','3756','3757','3758','3759','3760','3761','3762','3764','3765','3768','3769','3772','1470')))",
"cost_info": {
"read_cost": "63.01",
"eval_cost": "6.00",
"prefix_cost": "69.01",
"data_read_per_join": "2K"
},
"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": 30,
"filtered": "100.00",
"cost_info": {
"read_cost": "30.00",
"eval_cost": "6.00",
"prefix_cost": "105.01",
"data_read_per_join": "22K"
},
"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": 30,
"filtered": "100.00",
"cost_info": {
"read_cost": "30.00",
"eval_cost": "6.00",
"prefix_cost": "141.01",
"data_read_per_join": "17K"
},
"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 |
|
|
|
|
3467 |
1470 |
product |
5441 |
A |
1 |
|
|
0 |
|
|
|
|
8939 |
3744 |
product |
10904 |
A |
1 |
|
|
0 |
|
|
|
|
8956 |
3762 |
product |
10921 |
A |
1 |
|
|
0 |
|
|
|
|
8959 |
3768 |
product |
10924 |
A |
1 |
|
|
0 |
|
|
|
|
76151 |
3746 |
product |
78094 |
A |
1 |
|
|
0 |
|
|
|
|
76155 |
3765 |
product |
78099 |
A |
1 |
|
|
0 |
|
|
|
|
76156 |
3765 |
product |
78098 |
A |
1 |
|
|
0 |
|
|
|
|
85137 |
3769 |
product |
37072 |
A |
1 |
|
|
0 |
|
|
|
|
76150 |
3746 |
product |
78093 |
A |
2 |
|
|
0 |
|
|
|
|
85138 |
3769 |
product |
37073 |
A |
2 |
|
|