ephraimbuddy commented on a change in pull request #13921:
URL: https://github.com/apache/airflow/pull/13921#discussion_r566355581
##########
File path: airflow/migrations/versions/cf5dc11e79ad_drop_user_and_chart.py
##########
@@ -47,7 +47,12 @@ def upgrade(): # noqa: D103
if 'known_event' in tables:
for fkey in inspector.get_foreign_keys(table_name="known_event",
referred_table="users"):
- op.drop_constraint(fkey['name'], 'known_event', type_="foreignkey")
+ if conn.dialect.name == "sqlite":
+ if fkey['name']:
+ with op.batch_alter_table(table_name='known_event') as bop:
+ bop.drop_constraint(fkey['name'], type_="foreignkey")
+ else:
+ op.drop_constraint(fkey['name'], 'known_event',
type_="foreignkey")
Review comment:
What if you use naming_convention? batch_alter_table supports
naming_convention where unnamed foreign_keys are named during reflection.
https://alembic.sqlalchemy.org/en/latest/batch.html
`naming_convention = {
"fk":
"fk_%(table_name)s_%(column_0_name)s_%(referred_table_name)s",
}`
```suggestion
with op.batch_alter_table(table_name='known_event',
naming_convention=naming_convention) as bop:
bop.drop_constraint(fkey['name'], type_="foreignkey")
```
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