- warning fix in prepared handling

git-svn-id: http://svn.php.net/repository/pear/packages/MDB2/trunk@213590 c90b9560-bf6c-de11-be94-00142212c4b1

MDB2/Driver/pgsql.php

@@ -644,7 +644,7 @@ function &prepare($query, $types = null, $result_types = null, $lobs = array())
         $placeholder_type_guess = $placeholder_type = null;
         $question = '?';
         $colon = ':';
-        $positions = array();
+        $positions = $pgtypes = array();
         $position = $parameter = 0;
         while ($position < strlen($query)) {
             $q_position = strpos($query, $question, $position);