src/Syntax/Where.php
public function subWhere($operator = 'OR')
    {
        /** @var Where $filter */
        $filter = QueryFactory::createWhere($this->query);
        $filter->conjunction($operator);
        $filter->setTable($this->getTable());

        $this->subWheres[] = $filter;

        return $filter;
    }
public function subWhere($operator = 'OR')
    {
        /** @var Where $filter */
        $filter = QueryFactory::createWhere($this->query);
        $filter->conjunction($operator);
        $filter->setTable($this->getTable());

        $this->subWheres[] = $filter;

        return $filter;
    }
@param $operator

@return Where