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https://issues.apache.org/jira/browse/HIVE-20787?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16669271#comment-16669271
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Sergey Shelukhin commented on HIVE-20787:
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[~jdere] maybe you can take a look? :)
> MapJoinBytesTableContainer dummyRow case doesn't handle reuse
> -------------------------------------------------------------
>
> Key: HIVE-20787
> URL: https://issues.apache.org/jira/browse/HIVE-20787
> Project: Hive
> Issue Type: Bug
> Reporter: Sergey Shelukhin
> Assignee: Sergey Shelukhin
> Priority: Major
> Attachments: HIVE-20787.01.patch, HIVE-20787.patch
>
>
> Discovered while investigating some (probably) unrelated issue.
> MapJoinBytesTableContainer was not intended to be reused, but it looks like
> some code might reuse it. If that happens, the dummyRow case will not work
> correctly (dummyRow is cleared on first(), so another call to first() will
> behave differently).
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