From b0680f9a1cd14005529c73e400bd5c88b461b3d3 Mon Sep 17 00:00:00 2001
From: Carsten Schmitz <c_schmitz@users.sourceforge.net>
Date: Mon, 5 Nov 2012 23:13:03 +0100
Subject: [PATCH] Fixed issue #6831: Exception when attempting to view
 individual survey result on MSSQL

---
 application/models/Survey_dynamic.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/application/models/Survey_dynamic.php b/application/models/Survey_dynamic.php
index 20f6012078b..ca1ab3f9aab 100644
--- a/application/models/Survey_dynamic.php
+++ b/application/models/Survey_dynamic.php
@@ -282,7 +282,7 @@ public function previous($srid,$usefilterstate=false)
         elseif ($usefilterstate && incompleteAnsFilterState() == 'complete')
             $wherefilterstate='submitdate IS NOT NULL';
         else
-            $wherefilterstate='true';
+            $wherefilterstate='1=1';
 
         if(Yii::app()->db->schema->getTable($this->tableName())){
             $data=Yii::app()->db->createCommand()