vincbeck commented on code in PR #55954:
URL: https://github.com/apache/airflow/pull/55954#discussion_r2379095709
##########
airflow-core/src/airflow/models/backfill.py:
##########
@@ -39,7 +38,18 @@
select,
)
from sqlalchemy.exc import IntegrityError
-from sqlalchemy.orm import relationship, validates
+
+try:
+ from sqlalchemy.orm import mapped_column
+except ImportError:
+ # fallback for SQLAlchemy < 2.0
+ def mapped_column(*args, **kwargs):
+ from sqlalchemy import Column
+
+ return Column(*args, **kwargs)
Review Comment:
I am happy to do it but this code is also temporary, this is a transition
until we migrate fully to SQLA2. Once the migration done, I'll create another
PR to simply import from `from sqlalchemy.orm import mapped_column`
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