diff options
Diffstat (limited to 'lib/sqlalchemy/orm/properties.py')
| -rw-r--r-- | lib/sqlalchemy/orm/properties.py | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/lib/sqlalchemy/orm/properties.py b/lib/sqlalchemy/orm/properties.py index f00775874..916b9d901 100644 --- a/lib/sqlalchemy/orm/properties.py +++ b/lib/sqlalchemy/orm/properties.py @@ -665,7 +665,11 @@ class MappedColumn( ) -> None: column = self.column - if self._use_existing_column and decl_scan.inherits: + if ( + self._use_existing_column + and decl_scan.inherits + and decl_scan.single + ): if decl_scan.is_deferred: raise sa_exc.ArgumentError( "Can't use use_existing_column with deferred mappers" |