CReport::isColumnTotalCountable

static function isColumnTotalCountable($view, $helperClassName)
{
	/** @var EntityField[] $view */
	$dataType = call_user_func(array($helperClassName, 'getFieldDataType'), $view['field']);

	if (($dataType === 'integer' || $dataType === 'float')
		&& empty($view['aggr'])
		&& (!$view['isUF'] || $view['ufInfo']['MULTIPLE'] !== 'Y'))
	{
		return true;
	}
	elseif (static::isTotalCountableAggregationFunction($view['aggr']))
	{
		return true;
	}

	return false;
}