- hashable

diff --git a/lib/sqlalchemy/sql/operators.py b/lib/sqlalchemy/sql/operators.py
index f851a5b0038cfb6c4aa2c7ecf23d89ad4cad13c0..560f723f266cf103dab929129a8d9830755d25c2 100644 (file)
--- a/lib/sqlalchemy/sql/operators.py
+++ b/lib/sqlalchemy/sql/operators.py
@@ -180,6 +180,9 @@ class custom_op(object):
         return isinstance(other, custom_op) and \
             other.opstring == self.opstring
 
+    def __hash__(self):
+        return id(self)
+
     def __call__(self, left, right, **kw):
         return left.operate(self, right, **kw)