From 7cfccbb14884192125d7210c747371c34208a97c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Petr=20S=CC=8Ckoda?= <commits@skodak.org>
Date: Mon, 8 Apr 2013 10:19:51 +0200
Subject: [PATCH] MDL-39022 fix MSSQL concat type conversion

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

diff --git a/lib/dml/mssql_native_moodle_database.php b/lib/dml/mssql_native_moodle_database.php
index 323a2fe3c57b9..db1e00d0dbe63 100644
--- a/lib/dml/mssql_native_moodle_database.php
+++ b/lib/dml/mssql_native_moodle_database.php
@@ -1176,7 +1176,7 @@ public function sql_like($fieldname, $param, $casesensitive = true, $accentsensi
     public function sql_concat() {
         $arr = func_get_args();
         foreach ($arr as $key => $ele) {
-            $arr[$key] = ' CAST(' . $ele . ' AS VARCHAR(255)) ';
+            $arr[$key] = ' CAST(' . $ele . ' AS NVARCHAR(255)) ';
         }
         $s = implode(' + ', $arr);
         if ($s === '') {