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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PHOENIX-3050) Handle DESC columns in child/parent join optimization
Date Wed, 06 Dec 2017 21:58:00 GMT

    [ https://issues.apache.org/jira/browse/PHOENIX-3050?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16280987#comment-16280987
] 

Hudson commented on PHOENIX-3050:
---------------------------------

SUCCESS: Integrated in Jenkins build Phoenix-master #1886 (See [https://builds.apache.org/job/Phoenix-master/1886/])
PHOENIX-3050 Handle DESC columns in child/parent join optimization (maryannxue: rev 071fbce499c5303ffdcd4bbe25c1cda788aced0c)
* (edit) phoenix-core/src/main/java/org/apache/phoenix/compile/WhereOptimizer.java
* (edit) phoenix-core/src/main/java/org/apache/phoenix/compile/QueryCompiler.java
* (edit) phoenix-core/src/main/java/org/apache/phoenix/compile/JoinCompiler.java
* (edit) phoenix-core/src/it/java/org/apache/phoenix/end2end/join/HashJoinMoreIT.java


> 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
>             Fix For: 4.14.0
>
>         Attachments: PHOENIX-3050.patch
>
>
> 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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