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https://issues.apache.org/jira/browse/TAJO-1533?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14482548#comment-14482548
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ASF GitHub Bot commented on TAJO-1533:
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GitHub user navis opened a pull request:
https://github.com/apache/tajo/pull/518
TAJO-1533 Provide hint to children execs whether it will require rescan on
them
Now ExternalSortExec cleans memory scanner when it's not needed
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/navis/tajo TAJO-1533
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/tajo/pull/518.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #518
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commit 4cfe5c5335fa272df9638038b729f0bd50dbf72f
Author: navis.ryu <[email protected]>
Date: 2015-04-07T04:09:53Z
TAJO-1533 Provide hint to children execs whether it will require rescan on
them
----
> Provide hint to children execs whether it will require rescan on them
> ---------------------------------------------------------------------
>
> Key: TAJO-1533
> URL: https://issues.apache.org/jira/browse/TAJO-1533
> Project: Tajo
> Issue Type: Sub-task
> Reporter: Navis
> Assignee: Navis
> Priority: Minor
>
> NLJoins uses rescan on right child. let's make it explicit.
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