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https://issues.apache.org/jira/browse/HBASE-7740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13569376#comment-13569376
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Lars Hofhansl commented on HBASE-7740:
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Nice find. +1
(Not that I am happy with adding another comparison into a relatively hot code
path, but I do not see how this is avoidable)
> Recheck matching row for joined scanners
> ----------------------------------------
>
> Key: HBASE-7740
> URL: https://issues.apache.org/jira/browse/HBASE-7740
> Project: HBase
> Issue Type: Bug
> Reporter: Sergey Shelukhin
> Assignee: Sergey Shelukhin
> Fix For: 0.96.0, 0.94.5
>
> Attachments: HBASE-7740-v0.patch
>
>
> It just occured to me that when the patch in HBASE-5416 was being modified by
> various people, the pre-check was changed to post-check in populateResults.
> Whereas before that, noting that there's a pre-check, I removed the check we
> do between seek and populateResult elsewhere (joined scanner path only).
> I have not observed this bug, but it seems to exist.
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