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https://issues.apache.org/jira/browse/TAJO-1513?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Keuntae Park reassigned TAJO-1513:
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Assignee: Keuntae Park
> Support set operations
> ----------------------
>
> Key: TAJO-1513
> URL: https://issues.apache.org/jira/browse/TAJO-1513
> Project: Tajo
> Issue Type: New Feature
> Reporter: Keuntae Park
> Assignee: Keuntae Park
>
> Currently, Tajo only supports union all operation.
> It needs to support
> {code}
> query1 UNION [ALL] query2
> query1 INTERSECT [ALL] query2
> query1 EXCEPT [ALL] query2
> {code}
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