diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/sqlalchemy/orm/properties.py | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/sqlalchemy/orm/properties.py b/lib/sqlalchemy/orm/properties.py index e0bf2e6e8..734b962a4 100644 --- a/lib/sqlalchemy/orm/properties.py +++ b/lib/sqlalchemy/orm/properties.py @@ -309,7 +309,10 @@ class PropertyLoader(StrategizedProperty): def compare(self, op, value, value_is_parent=False): if op == operators.eq: if value is None: - return ~sql.exists([1], self.prop.mapper.mapped_table, self.prop.primaryjoin) + if self.uselist: + return ~sql.exists([1], self.primaryjoin) + else: + return self._optimized_compare(None, value_is_parent=value_is_parent) else: return self._optimized_compare(value, value_is_parent=value_is_parent) else: |