From a86398fdcfb9f3336fb2c63de1f712b38e6d5860 Mon Sep 17 00:00:00 2001
From: Mike Bayer <mike_mp@zzzcomputing.com>
Date: Tue, 24 Apr 2007 21:45:22 +0000
Subject: - primary key determination within Join maintains table PK ordering

---
 lib/sqlalchemy/sql.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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

diff --git a/lib/sqlalchemy/sql.py b/lib/sqlalchemy/sql.py
index f4db66fdf..8eb5861f0 100644
--- a/lib/sqlalchemy/sql.py
+++ b/lib/sqlalchemy/sql.py
@@ -1938,7 +1938,7 @@ class Join(FromClause):
     encodedname = property(lambda s: s.name.encode('ascii', 'backslashreplace'))
 
     def _init_primary_key(self):
-        pkcol = util.Set()
+        pkcol = util.OrderedSet()
         for col in self._adjusted_exportable_columns():
             if col.primary_key:
                 pkcol.add(col)
-- 
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