From b2e5a60773421119a87ced76a7aae443ba238db2 Mon Sep 17 00:00:00 2001
From: Dan Poltawski <dan@moodle.com>
Date: Tue, 10 Jul 2012 12:58:46 +0800
Subject: [PATCH] MDL-34159 - add comment lost from previous commit

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

diff --git a/lib/dml/moodle_database.php b/lib/dml/moodle_database.php
index b44b740fbf2..9531782ff6f 100644
--- a/lib/dml/moodle_database.php
+++ b/lib/dml/moodle_database.php
@@ -575,7 +575,7 @@ abstract class moodle_database {
      */
     protected function where_clause_list($field, array $values) {
         if (empty($values)) {
-            return array("1 = 2", array());
+            return array("1 = 2", array()); // Fake condition, won't return rows ever. MDL-17645
         }
 
         // Note: Do not use get_in_or_equal() because it can not deal with bools and nulls.