private static function _changeTracking($dbname, $tablename, $version, $new_state)
{
$sql_query = " UPDATE " . self::_getTrackingTable() . " SET `tracking_active` = '" . $new_state . "' " . " WHERE `db_name` = '" . $GLOBALS['dbi']->escapeString($dbname) . "' " . " AND `table_name` = '" . $GLOBALS['dbi']->escapeString($tablename) . "' " . " AND `version` = '" . $GLOBALS['dbi']->escapeString($version) . "' ";
$result = PMA_queryAsControlUser($sql_query);
return $result;
}