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https://issues.apache.org/jira/browse/TAJO-563?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13965011#comment-13965011
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Hyunsik Choi commented on TAJO-563:
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Created a review request against branch master in reviewboard
https://reviews.apache.org/r/20198/
> INSERT OVERWRITE should not remove data before query success
> ------------------------------------------------------------
>
> Key: TAJO-563
> URL: https://issues.apache.org/jira/browse/TAJO-563
> Project: Tajo
> Issue Type: Bug
> Components: query master, tajo master
> Affects Versions: 0.8-incubating, 1.0-incubating
> Reporter: Hyunsik Choi
> Assignee: Hyunsik Choi
> Priority: Critical
> Fix For: 0.8-incubating
>
> Attachments: TAJO-563.patch
>
>
> INSERT OVERWRITE removes a table data set regardless of query success. In
> addition, INSERT OVERWRITE removes a table data set upon launching a query.
> It is a very dangerous approach, and we have to fix it.
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