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-rw-r--r--lib/sqlalchemy/sql/expression.py3
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/sqlalchemy/sql/expression.py b/lib/sqlalchemy/sql/expression.py
index 1eada57dc..f790555bc 100644
--- a/lib/sqlalchemy/sql/expression.py
+++ b/lib/sqlalchemy/sql/expression.py
@@ -1566,7 +1566,8 @@ class ColumnElement(ClauseElement, _CompareMixin):
primary_key = False
foreign_keys = []
quote = None
-
+ _label = None
+
@property
def _select_iterable(self):
return (self, )