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Posted to notifications@iotdb.apache.org by "Yuan Tian (Jira)" <ji...@apache.org> on 2022/10/31 08:17:00 UTC

[jira] [Assigned] (IOTDB-3580) Support ORDER BY DEVICE in align by device query

     [ https://issues.apache.org/jira/browse/IOTDB-3580?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yuan Tian reassigned IOTDB-3580:
--------------------------------

    Assignee: yang caiyin  (was: Yuan Tian)

> Support ORDER BY DEVICE in align by device query
> ------------------------------------------------
>
>                 Key: IOTDB-3580
>                 URL: https://issues.apache.org/jira/browse/IOTDB-3580
>             Project: Apache IoTDB
>          Issue Type: New Feature
>            Reporter: Yuan Tian
>            Assignee: yang caiyin
>            Priority: Major
>
> In current mpp and original standalone version, for align by device query, we don't hava an order for the result set. Records in one device will be ordered by time, but different devices are in a hash order which depends on the sequence they are in the iteration of HashMap.
> Some users want to order all the devices by their alphabetical order, so we need to implement a new syntax like ORDER BY DEVICE.



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