Fixing tests for PostGreSQL

Author: moufmouf

tests/TDBMServiceTest.php

@@ -757,7 +757,7 @@ public function testFindObjectsFromSqlHierarchyUp()
             'users',
             'login LIKE :login OR login LIKE :login2',
             array('login' => 'robert.marley', 'login2' => 'bill.shakespeare'),
-            'login DESC',
+            'users.login DESC',
             null,
             TDBMObject::class
         );