Query time 0.00163
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "195.21"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "34.00"
},
"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": 34,
"rows_produced_per_join": 34,
"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 ('6957','6958','6959','6960','6961','6962','6963','6964','6965','6966','6967','6968','6969','6970','6971','6972','6974','6977','6978','6979','4497','4498','4499','4500','4501','4502','4503','4504','4505','4506','4507','4509')))",
"cost_info": {
"read_cost": "72.81",
"eval_cost": "6.80",
"prefix_cost": "79.61",
"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.image_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 34,
"filtered": "100.00",
"cost_info": {
"read_cost": "34.00",
"eval_cost": "6.80",
"prefix_cost": "120.41",
"data_read_per_join": "26K"
},
"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": 34,
"filtered": "100.00",
"cost_info": {
"read_cost": "34.00",
"eval_cost": "6.80",
"prefix_cost": "161.21",
"data_read_per_join": "20K"
},
"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 |
|
|
|
|
13712 |
6963 |
product |
15674 |
A |
1 |
|
|
0 |
|
|
|
|
13716 |
6966 |
product |
15678 |
A |
1 |
|
|
0 |
|
|
|
|
13717 |
6972 |
product |
15679 |
A |
1 |
|
|
0 |
|
|
|
|
13718 |
6972 |
product |
15680 |
A |
2 |
|
|
0 |
|
|
|
|
13723 |
6972 |
product |
15685 |
A |
3 |
|
|
0 |
|
|
|
|
13724 |
6972 |
product |
15686 |
A |
4 |
|
|
0 |
|
|
|
|
11225 |
4497 |
product |
13187 |
A |
10 |
|
|
0 |
|
|
|
|
13714 |
6964 |
product |
15676 |
A |
10 |
|
|
0 |
|
|
|
|
13735 |
6978 |
product |
15697 |
A |
10 |
|
|
0 |
|
|
|
|
13715 |
6964 |
product |
15677 |
A |
20 |
|
|