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https://issues.apache.org/jira/browse/HIVE-18908?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16391692#comment-16391692
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Matt McCline edited comment on HIVE-18908 at 3/8/18 6:35 PM:
-------------------------------------------------------------
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.
Only Fast hash tables seem to work at the moment. New Q file
vector_fullouter_mapjoin_1_fast.q passes. Java Unit test TestMapJoinOperator
was extensively updated -- but it is broken at the moment.
was (Author: mmccline):
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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