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Posted to issues@hive.apache.org by "Matt McCline (JIRA)" <ji...@apache.org> on 2018/03/08 18:30:00 UTC

[jira] [Commented] (HIVE-18908) Add support for FULL OUTER JOIN to MapJoin

    [ https://issues.apache.org/jira/browse/HIVE-18908?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16391692#comment-16391692 ] 

Matt McCline commented on HIVE-18908:
-------------------------------------

Patch #1 is a Work-In-Progress.  FULL OUTER MapJoin for Optimized hash tables is broken and checks are missing to not use it for MR, etc.

> Add support for FULL OUTER JOIN to MapJoin
> ------------------------------------------
>
>                 Key: HIVE-18908
>                 URL: https://issues.apache.org/jira/browse/HIVE-18908
>             Project: Hive
>          Issue Type: Improvement
>          Components: Hive
>            Reporter: Matt McCline
>            Assignee: Matt McCline
>            Priority: Critical
>         Attachments: HIVE-18908.01.patch
>
>
> Currently, we do not support FULL OUTER JOIN in MapJoin.



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