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https://issues.apache.org/jira/browse/TAJO-1514?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Keuntae Park reassigned TAJO-1514:
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Assignee: Keuntae Park
> Distinguishing UNION and UNION ALL
> ----------------------------------
>
> Key: TAJO-1514
> URL: https://issues.apache.org/jira/browse/TAJO-1514
> Project: Tajo
> Issue Type: Sub-task
> Reporter: Keuntae Park
> Assignee: Keuntae Park
>
> Currently, Tajo handles both UNION and UNION ALL as UNION ALL.
> For UNION, however, result should not have duplicated rows.
> It needs to handle them differently.
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