src/Attribute/BaseSimple.php
public function sortIds($idList, $strDirection)
    {
        // Base implementation, do a simple sorting on given column.
        $idList = $this->connection->createQueryBuilder()
            ->select('id')
            ->from($this->getMetaModel()->getTableName())
            ->where('id IN (:ids)')
            ->setParameter('ids', $idList, Connection::PARAM_STR_ARRAY)
            ->orderBy($this->getColName(), $strDirection)
            ->execute()
            ->fetchAll(\PDO::FETCH_COLUMN, 'id');

        return $idList;
    }
public function sortIds($idList, $strDirection)
    {
        // Base implementation, do a simple sorting on given column.
        $idList = $this->connection->createQueryBuilder()
            ->select('id')
            ->from($this->getMetaModel()->getTableName())
            ->where('id IN (:ids)')
            ->setParameter('ids', $idList, Connection::PARAM_STR_ARRAY)
            ->orderBy($this->getColName(), $strDirection)
            ->execute()
            ->fetchAll(\PDO::FETCH_COLUMN, 'id');

        return $idList;
    }
{@inheritdoc}

This base implementation does a plain SQL sort by native value as defined by MySQL.