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https://issues.apache.org/jira/browse/PHOENIX-1580?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14390667#comment-14390667
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Maryann Xue commented on PHOENIX-1580:
--------------------------------------
[~ayingshu] Having an outer select has NOTHING to do with the
TupleProjectionPlan and is more logically and conceptually reasonable than
using the first query as the outer select and keep the rest in a list. This is
about how you would represent the query structure and is independent of how you
would implement it.
And I do believe that with a little debugging and understanding ability, adding
a special or null node as the FROM node of the outer query would not be a
problem at all.
> 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-grammar.patch, Phoenix-1580-v1.patch,
> phoenix-1580-v1-wipe.patch, phoenix-1580.patch, unionall-wipe.patch
>
>
> Select * from T1
> UNION ALL
> Select * from T2
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