diff options
Diffstat (limited to 'lib/sqlalchemy/sql/elements.py')
| -rw-r--r-- | lib/sqlalchemy/sql/elements.py | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/lib/sqlalchemy/sql/elements.py b/lib/sqlalchemy/sql/elements.py index 414e3f477..1ce03e66a 100644 --- a/lib/sqlalchemy/sql/elements.py +++ b/lib/sqlalchemy/sql/elements.py @@ -3577,7 +3577,13 @@ class Label(ColumnElement): return self._element.self_group(against=operators.as_) def self_group(self, against=None): - sub_element = self._element.self_group(against=against) + return self._apply_to_inner(self._element.self_group, against=against) + + def _negate(self): + return self._apply_to_inner(self._element._negate) + + def _apply_to_inner(self, fn, *arg, **kw): + sub_element = fn(*arg, **kw) if sub_element is not self._element: return Label(self.name, sub_element, |