Index: Statement.php
===================================================================
--- Statement.php	(revision 13128)
+++ Statement.php	(working copy)
@@ -184,7 +184,10 @@
         // get a version of the SQL statement with all quoted
         // values and delimited identifiers stripped out
         // remove "foo\"bar"
-        $sql = preg_replace("/$q($qe|\\\\{2}|[^$q])*$q/", '', $sql);
+        if (!empty($q)) {
+            $sql = preg_replace("/$q($qe|\\\\{2}|[^$q])*$q/", '', $sql);
+        }
+        
         // remove 'foo\'bar'
         if (!empty($q)) {
             $sql = preg_replace("/$q($qe|[^$q])*$q/", '', $sql);