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https://issues.apache.org/jira/browse/HIVE-12905?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15112779#comment-15112779
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Sergey Shelukhin commented on HIVE-12905:
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Nit: if (writeHelper == null) { check should not be necessary, right?
Also do MR and Spark HashtableLoaders use putRow too? I don't recall, they need
to be updated if they do.
Otherwise +1 pending tests.
> Issue with mapjoin in tez under certain conditions
> --------------------------------------------------
>
> Key: HIVE-12905
> URL: https://issues.apache.org/jira/browse/HIVE-12905
> Project: Hive
> Issue Type: Bug
> Components: Tez
> Affects Versions: 1.0.1, 1.2.1, 2.0.0
> Reporter: Vikram Dixit K
> Assignee: Vikram Dixit K
> Priority: Blocker
> Attachments: HIVE-12905.1.patch
>
>
> In a specific case where we have an outer join followed by another join on
> the same key and the non-outer side of the outer join is empty, hive-on-tez
> produces incorrect results.
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