CAllDBResult::FetchInternal

protected function FetchInternal()
{
	if ($this->resultObject !== null)
	{
		$res = $this->resultObject->fetch();
	}
	else
	{
		$res = $this->FetchRow();

		if (!$res)
		{
			return false;
		}

		$this->AfterFetch($res);
	}
	return $res;
}