public function merge($masterPk, $alias, array $rows, $junction, $column, $table, $pk, $columns)
    {
        foreach ($rows as &$row) {
            $value = $row[$masterPk];
            $row[$alias] = $this->getSlaveData($table, $pk, $junction, $column, $value, $columns);
        }

        return $rows;
    }