Fixed issue #6932: Clicking browse on text entries returns no results…

… in statistics screen in MSSQL

application/controllers/admin/statistics.php

@@ -494,7 +494,7 @@ public function run($surveyid = 0, $subaction = null)
      * */
     function listcolumn($surveyid, $column, $sortby="", $sortmethod="", $sorttype="")
     {
-        $search['condition']=$column." != ''";
+        $search['condition']=Yii::app()->db->quoteColumnName($column)." != ''";
         //Look for any selects/filters set in the original statistics query, and apply them to the column listing
         foreach(Yii::app()->session['statistics_selects_'.$surveyid] as $sql) {
              $search['condition'] .= " AND $sql";