From 7d7654caa019cb3ed3c39aa1b4eb8c1f3bf5caae Mon Sep 17 00:00:00 2001
From: Damian Mooyman <damian.mooyman@gmail.com>
Date: Fri, 24 Aug 2012 12:28:28 +1200
Subject: [PATCH] FIXED: Critical issue where index columns would be split
 apart and rejoined assuming they were not quoted. Already quoted columns
 would end up quad (dobule x double) quoted.

---
 code/MSSQLDatabase.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/code/MSSQLDatabase.php b/code/MSSQLDatabase.php
index dca15fc..48274f0 100644
--- a/code/MSSQLDatabase.php
+++ b/code/MSSQLDatabase.php
@@ -858,7 +858,7 @@ class MSSQLDatabase extends SS_Database {
 			}
 
 			if($indexSpec['type'] == 'unique') {
-				if(!is_array($indexSpec['value'])) $columns = preg_split('/ *, */', trim($indexSpec['value']));
+				if(!is_array($indexSpec['value'])) $columns = preg_split('/"? *, *"?/', trim(trim($indexSpec['value']), '"'));
 				else $columns = $indexSpec['value'];
 				$SQL_columnList = '"' . implode('", "', $columns) . '"';