/**
* @return \Magento\Framework\DB\Select
*/
public function getLogDataSelect()
{
$fields = ['visitor_id' => 'lv.visitor_id', 'customer_id' => 'lc.customer_id', 'session_id' => 'lv.session_id', 'last_visit_at' => 'lv.last_visit_at'];
/** @var \Magento\Framework\DB\Select $select */
$select = $this->sourceAdapter->getSelect();
$select->from(['lv' => $this->source->addDocumentPrefix('log_visitor')], $fields)->joinLeft(['lc' => $this->source->addDocumentPrefix('log_customer')], 'lv.visitor_id = lc.visitor_id', [])->group('lv.visitor_id')->order('lv.visitor_id');
return $select;
}
