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Posted to dev@phoenix.apache.org by "James Taylor (JIRA)" <ji...@apache.org> on 2017/10/20 20:52:00 UTC

[jira] [Commented] (PHOENIX-3050) Handle DESC columns in child/parent join optimization

    [ https://issues.apache.org/jira/browse/PHOENIX-3050?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16213210#comment-16213210 ] 

James Taylor commented on PHOENIX-3050:
---------------------------------------

Would be great to get back to this one, [~maryannxue] if you have some spare cycles.


> Handle DESC columns in child/parent join optimization
> -----------------------------------------------------
>
>                 Key: PHOENIX-3050
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-3050
>             Project: Phoenix
>          Issue Type: Bug
>    Affects Versions: 4.8.0
>            Reporter: Maryann Xue
>            Assignee: Maryann Xue
>            Priority: Minor
>
> We found that child/parent join optimization would not work with DESC pk columns. So as a quick fix for PHOENIX-3029, we simply avoid DESC columns when optimizing, which would have no impact on the overall approach and no impact on ASC columns.
>  
> But eventually we need to make the optimization work with DESC columns too.



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