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Fix DB downgrade to Airflow 2 when fab tables exists #55738

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Merged
jedcunningham merged 1 commit into from
Sep 16, 2025
Merged

Fix DB downgrade to Airflow 2 when fab tables exists #55738

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8 changes: 8 additions & 0 deletions airflow-core/src/airflow/utils/db.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1255,6 +1255,14 @@ def _handle_fab_downgrade(*, session: Session) -> None:
fab_version,
)
return
connection = settings.engine.connect()
insp = inspect(connection)
if not fab_version and insp.has_table("ab_user"):
log.info(
"FAB migration version not found, but FAB tables exist. "
"FAB provider is not required for downgrade.",
)
return

# FAB db version is different or not found - require the FAB provider
try:
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