kaxil commented on code in PR #54362:
URL: https://github.com/apache/airflow/pull/54362#discussion_r2267504786
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airflow-core/src/airflow/models/dagbag.py:
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@@ -752,7 +754,14 @@ def _version_from_dag_run(dag_run, session):
if dag_version:
return dag_version
- return dag_run.created_dag_version
+ # Check if created_dag_version relationship is already loaded to avoid
DetachedInstanceError
+ info = inspect(dag_run)
+ if info.attrs.created_dag_version.loaded_value is not NO_VALUE:
+ # Relationship is already loaded, safe to access
+ return dag_run.created_dag_version
+
+ # Relationship not loaded, fetch it explicitly from current session
+ return session.get(DagVersion, dag_run.created_dag_version_id)
Review Comment:
Let's get this issue unblocked and Ephraim & Daniel will decide on the
longer term solution i.e. if we want to eagerly load the relationship or not
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