- unfortunately calling upon "_label" here makes it unclear if

we're trying to hit columns without names yet and such, to suit the bug
right now just make it specific to FunctionElement

(cherry picked from commit 785224a92f39bd5bdd05bbc66f4dd79736abded5)

diff --git a/lib/sqlalchemy/sql/elements.py b/lib/sqlalchemy/sql/elements.py
index 67a442b0c2aa0bfb4f576013c4429d2143df2d59..8256900f960044f7d867baf5ac8e3d4e85c6070d 100644 (file)
--- a/lib/sqlalchemy/sql/elements.py
+++ b/lib/sqlalchemy/sql/elements.py
@@ -4005,8 +4005,10 @@ def _cloned_difference(a, b):
                if not all_overlap.intersection(elem._cloned_set))
 
 
-def _labeled(element):
-    if not hasattr(element, 'name') or not getattr(element, '_label', None):
+@util.dependencies("sqlalchemy.sql.functions")
+def _labeled(functions, element):
+    if not hasattr(element, 'name') or \
+            isinstance(element, functions.FunctionElement):
         return element.label(None)
     else:
         return element