diff options
Diffstat (limited to 'lib/sqlalchemy/orm/persistence.py')
| -rw-r--r-- | lib/sqlalchemy/orm/persistence.py | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/sqlalchemy/orm/persistence.py b/lib/sqlalchemy/orm/persistence.py index f19f29daa..7ab9eeda7 100644 --- a/lib/sqlalchemy/orm/persistence.py +++ b/lib/sqlalchemy/orm/persistence.py @@ -2179,6 +2179,11 @@ class BulkORMUpdate(UpdateDMLState, BulkUDCompileState): compiler._annotations.get("synchronize_session", None) == "fetch" and compiler.dialect.full_returning ): + if new_stmt._returning: + raise sa_exc.InvalidRequestError( + "Can't use synchronize_session='fetch' " + "with explicit returning()" + ) new_stmt = new_stmt.returning(*mapper.primary_key) UpdateDMLState.__init__(self, new_stmt, compiler, **kw) |