From 352476d1317641744a7d4febff83f140feadca68 Mon Sep 17 00:00:00 2001
From: "Eloy Lafuente (stronk7)" <stronk7@moodle.org>
Date: Tue, 24 Apr 2012 13:07:11 +0200
Subject: [PATCH] MDL-31914 db fix - cannot use table aliases on DELETE
 statements. Credit goes to Andrew Nicols (LUNS).

---
 lib/db/upgrade.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/db/upgrade.php b/lib/db/upgrade.php
index c46ed5f2e17..c37008396f5 100644
--- a/lib/db/upgrade.php
+++ b/lib/db/upgrade.php
@@ -7042,7 +7042,7 @@ FROM
                     WHERE NOT EXISTS (
                         SELECT 'x' FROM {course_modules}
                         WHERE {course_modules}.id = {course_completion_criteria}.moduleinstance)
-                    AND cc.criteriatype = ".COMPLETION_CRITERIA_TYPE_ACTIVITY;
+                    AND {course_completion_criteria}.criteriatype = ".COMPLETION_CRITERIA_TYPE_ACTIVITY;
         }
         $DB->execute($sql);