Query time 0.00121
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "167.21"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "29.00"
},
"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": 29,
"rows_produced_per_join": 29,
"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 ('1593','1594','1595','1596','1597','1598','1599','1600','1601','1602','1603','1605','1606','1607','1610','1611','1612','1613','1614','1615','1616','1617','1618','1624','1625','1626','1627','1628')))",
"cost_info": {
"read_cost": "62.81",
"eval_cost": "5.80",
"prefix_cost": "68.61",
"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": 29,
"filtered": "100.00",
"cost_info": {
"read_cost": "29.00",
"eval_cost": "5.80",
"prefix_cost": "103.41",
"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": 29,
"filtered": "100.00",
"cost_info": {
"read_cost": "29.00",
"eval_cost": "5.80",
"prefix_cost": "138.21",
"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 |
|
|
|
|
3614 |
1625 |
product |
5588 |
A |
1 |
|
|
0 |
|
|
|
|
3644 |
1626 |
product |
5618 |
A |
1 |
|
|
0 |
|
|
|
|
3646 |
1602 |
product |
5620 |
A |
1 |
|
|
0 |
|
|
|
|
3648 |
1601 |
product |
5622 |
A |
1 |
|
|
0 |
|
|
|
|
3650 |
1597 |
product |
5624 |
A |
1 |
|
|
0 |
|
|
|
|
3652 |
1598 |
product |
5626 |
A |
1 |
|
|
0 |
|
|
|
|
3885 |
1593 |
product |
5859 |
A |
1 |
|
|
0 |
|
|
|
|
4027 |
1596 |
product |
6001 |
A |
1 |
|
|
0 |
|
|
|
|
4029 |
1594 |
product |
6003 |
A |
1 |
|
|
0 |
|
|
|
|
18265 |
1605 |
product |
20227 |
A |
1 |
|
|
0 |
|
|
|
|
18267 |
1606 |
product |
20229 |
A |
1 |
|
|
0 |
|
|
|
|
18269 |
1607 |
product |
20231 |
A |
1 |
|
|
0 |
|
|
|
|
3886 |
1593 |
product |
5860 |
A |
2 |
|
|
0 |
|
|
|
|
4030 |
1594 |
product |
6004 |
A |
2 |
|
|