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Posted to commits@airflow.apache.org by GitBox <gi...@apache.org> on 2021/09/22 14:29:44 UTC

[GitHub] [airflow] ashb commented on a change in pull request #18434: Add cascade to DagRun/TaskInstance relationship

ashb commented on a change in pull request #18434:
URL: https://github.com/apache/airflow/pull/18434#discussion_r714003363



##########
File path: airflow/models/dagrun.py
##########
@@ -124,7 +124,9 @@ class DagRun(Base, LoggingMixin):
         ),
     )
 
-    task_instances = relationship(TI, back_populates="dag_run")
+    task_instances = relationship(
+        TI, back_populates="dag_run", cascade='save-update, merge, delete, delete-orphan'

Review comment:
       ```suggestion
           TI, back_populates="dag_run", cascade='all, delete-orphan'
   ```
   I think? That seems to be what the docs recommend as "typical"




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