From: Mike Bayer <mike_mp@zzzcomputing.com>
Date: Thu, 28 Aug 2014 16:41:50 +0000 (-0400)
Subject: - this is small optimization, currently it's the best we can do
X-Git-Tag: rel_1_0_0b1~205^2~38
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=becd78503f096e74adde319b2726b052b2353921;p=thirdparty%2Fsqlalchemy%2Fsqlalchemy.git

- this is small optimization, currently it's the best we can do
for #3175.  fixes #3175 (for now)
---

diff --git a/lib/sqlalchemy/sql/annotation.py b/lib/sqlalchemy/sql/annotation.py
index 02f5c3c1c4..3df4257d45 100644
--- a/lib/sqlalchemy/sql/annotation.py
+++ b/lib/sqlalchemy/sql/annotation.py
@@ -46,6 +46,7 @@ class Annotated(object):
         self.__dict__ = element.__dict__.copy()
         self.__element = element
         self._annotations = values
+        self._hash = hash(element)
 
     def _annotate(self, values):
         _values = self._annotations.copy()
@@ -87,7 +88,7 @@ class Annotated(object):
             return self.__class__(clone, self._annotations)
 
     def __hash__(self):
-        return hash(self.__element)
+        return self._hash
 
     def __eq__(self, other):
         if isinstance(self.__element, operators.ColumnOperators):