hive-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Alan Gates (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-4197) Bring windowing support inline with SQL Standard
Date Wed, 20 Mar 2013 21:27:15 GMT

    [ https://issues.apache.org/jira/browse/HIVE-4197?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13608243#comment-13608243
] 

Alan Gates commented on HIVE-4197:
----------------------------------

bq. Stable sort issue seems to be an important one ...

Yeah, I hadn't thought about the point that even in ORDER BY our sort needs to be stable in
order to give consistent results.  It sucks that we have to introduce a sort even in queries
without an ORDER BY, but oh well.  I agree that FileName and FileOffset are a good proxy,
as that will maintain stability in the sort.
                
> Bring windowing support inline with SQL Standard
> ------------------------------------------------
>
>                 Key: HIVE-4197
>                 URL: https://issues.apache.org/jira/browse/HIVE-4197
>             Project: Hive
>          Issue Type: Bug
>          Components: PTF-Windowing
>            Reporter: Harish Butani
>         Attachments: WindowingSpecification.pdf
>
>
> The current behavior defers from the Standard in several significant places.
> Please review attached doc; there are still a few open issues. Once we agree on the behavior,
can proceed with fixing the implementation.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira

Mime
View raw message