From: Mike Bayer <mike_mp@zzzcomputing.com>
Date: Sat, 17 Apr 2010 17:00:23 +0000 (-0400)
Subject: have polymorphic_union render the 'literal' in a type-specific way
X-Git-Tag: rel_0_6_0~4
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=99dc6b88670435158f06f1451e3092300f8f8734;p=thirdparty%2Fsqlalchemy%2Fsqlalchemy.git

have polymorphic_union render the 'literal' in a type-specific way
---

diff --git a/lib/sqlalchemy/orm/util.py b/lib/sqlalchemy/orm/util.py
index 63b9d565f4..03f8c0c375 100644
--- a/lib/sqlalchemy/orm/util.py
+++ b/lib/sqlalchemy/orm/util.py
@@ -117,8 +117,10 @@ def polymorphic_union(table_map, typecolname, aliasname='p_union'):
     for type, table in table_map.iteritems():
         if typecolname is not None:
             result.append(sql.select([col(name, table) for name in colnames] +
-                                     [sql.literal_column("'%s'" % type).label(typecolname)],
-                                     from_obj=[table]))
+                             [sql.literal_column(
+                                sql_util._quote_ddl_expr(type)).label(typecolname)
+                              ],
+                             from_obj=[table]))
         else:
             result.append(sql.select([col(name, table) for name in colnames],
                                      from_obj=[table]))