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https://issues.apache.org/jira/browse/PHOENIX-1580?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14375144#comment-14375144
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James Taylor commented on PHOENIX-1580:
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See PHOENIX-1749 as well. Support this would be pretty easy and allow a good
way for the ORDER BY to be specified when doing a union. We should be careful
to push down the ORDER BY and LIMIT into the sub-plan of each statement being
unioned so all the client needs to do is a merge sort.
> Support UNION ALL
> -----------------
>
> Key: PHOENIX-1580
> URL: https://issues.apache.org/jira/browse/PHOENIX-1580
> Project: Phoenix
> Issue Type: Bug
> Reporter: Alicia Ying Shu
> Assignee: Alicia Ying Shu
> Attachments: phoenix-1580.patch, unionall-wipe.patch
>
>
> Select * from T1
> UNION ALL
> Select * from T2
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