From d69d72f81e93a559ad81f2773a9271165506a25c Mon Sep 17 00:00:00 2001
From: Mike Bayer <mike_mp@zzzcomputing.com>
Date: Sat, 16 Jun 2012 18:42:55 -0400
Subject: [PATCH] set these up as None, the comprehensive solution here is in
 0.8, [ticket:2498]

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

diff --git a/lib/sqlalchemy/engine/default.py b/lib/sqlalchemy/engine/default.py
index f3d05cac27..c93f390dba 100644
--- a/lib/sqlalchemy/engine/default.py
+++ b/lib/sqlalchemy/engine/default.py
@@ -351,6 +351,8 @@ class DefaultExecutionContext(base.ExecutionContext):
     result_map = None
     compiled = None
     statement = None
+    postfetch_cols = None
+    prefetch_cols = None
     _is_implicit_returning = False
     _is_explicit_returning = False
 
-- 
2.47.2