Dev-iL commented on code in PR #69469:
URL: https://github.com/apache/airflow/pull/69469#discussion_r3534598423
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airflow-core/src/airflow/migrations/versions/0017_2_9_2_fix_inconsistency_between_ORM_and_migration_files.py:
##########
@@ -110,7 +110,7 @@ def upgrade():
batch_op.create_unique_constraint(batch_op.f("connection_conn_id_uq"),
["conn_id"])
max_cons = sa.table("dag", sa.column("max_consecutive_failed_dag_runs"))
-
op.execute(max_cons.update().values(max_consecutive_failed_dag_runs=literal("0")))
+
op.execute(max_cons.update().values(max_consecutive_failed_dag_runs=literal(0)))
Review Comment:
It is safe to modify the old migration because a str literal makes
SQLAlchemy emit an explicit `::VARCHAR` cast, which psycopg (v3) enforces
literally against this integer column (DatatypeMismatch). psycopg2 ignores the
cast and lets Postgres coerce the text implicitly, so both drivers persist the
same value either way.
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