Fixed escaping of wildcard characters in iexact lookups in Oracle.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@8808 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/db/backends/oracle/base.py

@@ -106,6 +106,9 @@ class DatabaseOperations(BaseDatabaseOperations):
     def max_name_length(self):
         return 30
 
+    def prep_for_iexact_query(self, x):
+        return x
+
     def query_class(self, DefaultQueryClass):
         return query.query_class(DefaultQueryClass, Database)