wjddn279 opened a new pull request, #61519:
URL: https://github.com/apache/airflow/pull/61519

   related: https://github.com/apache/airflow/issues/61453
   
   
   ## Why?
   
   There was an issue where IN operations on a large number of rows in the 
assets table caused long-running queries.
   This commit fixes that issue.
   
   ## How?
   
   While we could improve this using CTEs, joins, etc., it would make the code 
messy and introduce side effects such as having to execute the orphan status 
query multiple times. Therefore, I decided to minimize (eliminate) the IN 
operations.
   
   The rationale for this logic being equivalent to the original logic is as 
follows:
   
   - `asset_reference_query` groups by the primary key of assets, so it is 
unique.
   - The sets where `orphaned` is True and False are complements of each other.
       - The relationship is: not orphaned = active, not active = orphaned.
   - In `self._orphan_unreferenced_assets`, orphaned rows from active_assets 
are deleted.
   - Consequently, the IN operation performed in 
`self._activate_referenced_assets` is unnecessary.
       - This is because all rows that satisfy the negation of that condition 
have already been deleted.
       - In most cases, the number of orphaned assets is much smaller, so this 
is a significant performance improvement.
   
   ## More?
   
   Nevertheless, if there are too many orphaned assets, performance degradation 
may still occur at this point.
   ```
   session.execute(
       delete(AssetActive).where(
           tuple_(AssetActive.name, AssetActive.uri).in_((a.name, a.uri) for a 
in assets)
       )
   )
   ```
   If the number of orphaned assets is large (above a certain threshold), it 
would be good to display a DAG warning.
   
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