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https://issues.apache.org/jira/browse/PHOENIX-1580?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14394924#comment-14394924
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James Taylor commented on PHOENIX-1580:
---------------------------------------

FYI, [~maryannxue] - if a RuntimeException is thrown with a SQLException as the 
cause, Phoenix will unwrap it and throw the SQLException. So in this case, she 
should be able to catch the SQLFeatureNotSupportedException to verify that 
subqueries with unions aren't yet supported.

> Support UNION ALL
> -----------------
>
>                 Key: PHOENIX-1580
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-1580
>             Project: Phoenix
>          Issue Type: Improvement
>            Reporter: Alicia Ying Shu
>            Assignee: Alicia Ying Shu
>         Attachments: PHOENIX-1580-grammar.patch, Phoenix-1580-v1.patch, 
> Phoenix-1580-v2.patch, Phoenix-1580-v3.patch, Phoenix-1580-v4.patch, 
> Phoenix-1580-v5.patch, Phoenix-1580-v6.patch, Phoenix-1580-v7.patch, 
> Phoenix-1580-v8.patch, phoenix-1580-v1-wipe.patch, phoenix-1580.patch, 
> unionall-wipe.patch
>
>
> Select * from T1
> UNION ALL
> Select * from T2



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