Indexer::getElementsCursor

protected function getElementsCursor(int $lastElementID = 0): BitrixMainORMQueryResult
{
	$filter = [
		'=IBLOCK_ID' => $this->iblockId,
		'=ACTIVE' => 'Y',
		'=WF_STATUS_ID' => 1,
		'==WF_PARENT_ELEMENT_ID' => null,
	];

	if ($lastElementID > 0)
	{
		$filter['>ID'] = $lastElementID;
	}

	return IblockElementTable::getList([
		'select' => ['ID'],
		'filter' => $filter,
		'order' => ['ID' => 'ASC'],
	]);
}