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https://issues.apache.org/jira/browse/HIVE-15938?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15869072#comment-15869072
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Sergey Shelukhin edited comment on HIVE-15938 at 2/16/17 3:31 AM:
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Preliminary patch, may need some cleanup. Also need to see if it breaks tests.
I was actually considering explicitly setting aliases for all SELEXPR right
after parse, if not set, to avoid this problem at any later point. But for now
this is it.
was (Author: sershe):
Preliminary patch, may need some cleanup. Also need to see if it breaks tests
> position alias in order by fails for union queries
> --------------------------------------------------
>
> Key: HIVE-15938
> URL: https://issues.apache.org/jira/browse/HIVE-15938
> Project: Hive
> Issue Type: Bug
> Reporter: Sergey Shelukhin
> Assignee: Sergey Shelukhin
> Attachments: HIVE-15938.patch
>
>
> The problem is that the query introduces a spurious ALLCOLREF
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