protected function loadRelated(): array
    {
        $innerKey = $this->parent->getField($this->key(Record::INNER_KEY));
        if (empty($innerKey)) {
            return [];
        }

        //Work with pre-build query
        $query = $this->createQuery($innerKey);

        //Use custom node to parse data
        $node = new PivotedRootNode(
            $this->schema[Record::RELATION_COLUMNS],
            $this->schema[Record::PIVOT_COLUMNS],
            $this->schema[Record::OUTER_KEY],
            $this->schema[Record::THOUGHT_INNER_KEY],
            $this->schema[Record::THOUGHT_OUTER_KEY]
        );

        $iterator = $query->getIterator();
        foreach ($iterator as $row) {
            //Time to parse some data
            $node->parseRow(0, $row);
        }

        //Memory free
        $iterator->close();

        return $node->getResult();
    }