Column::getFieldsForSortingRaw

static function getFieldsForSortingRaw()
{
	return array(
		'SORTING',
		'ACTIVITY_DATE',
		'ID',
		'TITLE',
		'DEADLINE',
		'ORIGINATOR_NAME',
		'RESPONSIBLE_NAME',
		'PRIORITY',
		'MARK',
		'TIME_ESTIMATE',
		'ALLOW_TIME_TRACKING',
		'CREATED_DATE',
		'CHANGED_DATE',
		'CLOSED_DATE',
	);
}