From d9b5991f9c21836e1d48555b949a402fc4ce6b35 Mon Sep 17 00:00:00 2001
From: Mike Bayer <mike_mp@zzzcomputing.com>
Date: Mon, 13 Aug 2012 14:37:58 -0400
Subject: - develop new system of applying custom operators to ColumnElement
 classes.  resembles that of the ORM so far.

---
 lib/sqlalchemy/sql/operators.py | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'lib/sqlalchemy/sql/operators.py')

diff --git a/lib/sqlalchemy/sql/operators.py b/lib/sqlalchemy/sql/operators.py
index 89681fa6a..f851a5b00 100644
--- a/lib/sqlalchemy/sql/operators.py
+++ b/lib/sqlalchemy/sql/operators.py
@@ -176,6 +176,10 @@ class custom_op(object):
         self.opstring = opstring
         self.precedence = precedence
 
+    def __eq__(self, other):
+        return isinstance(other, custom_op) and \
+            other.opstring == self.opstring
+
     def __call__(self, left, right, **kw):
         return left.operate(self, right, **kw)
 
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