From bff2f6f3fbb0450cb9d0d09a25845a437c3df85e Mon Sep 17 00:00:00 2001
From: Mike Bayer <mike_mp@zzzcomputing.com>
Date: Tue, 14 Dec 2010 19:24:17 -0500
Subject: - fixes for mysql and I'm ready to replace this whole adapt()
 business with a constructor copy

---
 lib/sqlalchemy/engine/default.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'lib/sqlalchemy/engine/default.py')

diff --git a/lib/sqlalchemy/engine/default.py b/lib/sqlalchemy/engine/default.py
index b432c351d..ae0625d30 100644
--- a/lib/sqlalchemy/engine/default.py
+++ b/lib/sqlalchemy/engine/default.py
@@ -135,14 +135,16 @@ class DefaultDialect(base.Dialect):
                     (label_length, self.max_identifier_length))
         self.label_length = label_length
         
-        self._type_memos = weakref.WeakKeyDictionary()
-        
         if not hasattr(self, 'description_encoding'):
             self.description_encoding = getattr(
                                             self, 
                                             'description_encoding', 
                                             encoding)
     
+    @util.memoized_property
+    def _type_memos(self):
+        return weakref.WeakKeyDictionary()
+        
     @property
     def dialect_description(self):
         return self.name + "+" + self.driver
-- 
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