From 12e09c6b8b99dfed11d6b8b86cecea8d59be0125 Mon Sep 17 00:00:00 2001
From: skodak <skodak>
Date: Sat, 25 Oct 2008 18:01:54 +0000
Subject: [PATCH] MDL-14679 dml/native_mysqli fixed column cache

---
 lib/dml/mysqli_native_moodle_database.php | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/lib/dml/mysqli_native_moodle_database.php b/lib/dml/mysqli_native_moodle_database.php
index 3c0cbd2dff..29880796cd 100644
--- a/lib/dml/mysqli_native_moodle_database.php
+++ b/lib/dml/mysqli_native_moodle_database.php
@@ -355,7 +355,13 @@ class mysqli_native_moodle_database extends moodle_database {
     public function change_database_structure($sql) {
         $this->writes++;
         $this->print_debug($sql);
-        return ($this->mysqli->query($sql) === TRUE);
+        $result = $this->mysqli->query($sql);
+        $this->reset_columns();
+        if ($result === false) {
+            $this->report_error($sql);
+            return false;
+        }
+        return true;
     }
 
     /**
-- 
2.39.5