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-rw-r--r--oslo_db/sqlalchemy/exc_filters.py1
1 files changed, 1 insertions, 0 deletions
diff --git a/oslo_db/sqlalchemy/exc_filters.py b/oslo_db/sqlalchemy/exc_filters.py
index 2d9b162..b4325a5 100644
--- a/oslo_db/sqlalchemy/exc_filters.py
+++ b/oslo_db/sqlalchemy/exc_filters.py
@@ -427,6 +427,7 @@ def _raise_for_all_others(error, match, engine_name, is_disconnect):
LOG.warn('DB exception wrapped.', exc_info=True)
raise exception.DBError(error)
+
ROLLBACK_CAUSE_KEY = 'oslo.db.sp_rollback_cause'