[jira] [Work logged] (HIVE-22601) Some columns will be lost when a UDTF has multiple aliases in some cases

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-22601?focusedWorklogId=442344&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-442344 ]

ASF GitHub Bot logged work on HIVE-22601:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 07/Jun/20 00:25
            Start Date: 07/Jun/20 00:25
    Worklog Time Spent: 10m 
      Work Description: github-actions[bot] commented on pull request #863:
URL: https://github.com/apache/hive/pull/863#issuecomment-640136353


   This pull request has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.
   Feel free to reach out on the dev@hive.apache.org list if the patch is in need of reviews.


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Issue Time Tracking
-------------------

    Worklog Id:     (was: 442344)
    Time Spent: 0.5h  (was: 20m)

> Some columns will be lost when a UDTF has multiple aliases in some cases
> ------------------------------------------------------------------------
>
>                 Key: HIVE-22601
>                 URL: https://issues.apache.org/jira/browse/HIVE-22601
>             Project: Hive
>          Issue Type: Bug
>          Components: Query Processor
>    Affects Versions: 2.1.1, 2.2.0, 3.1.2, 2.3.6
>            Reporter: okumin
>            Assignee: Owen O'Malley
>            Priority: Major
>              Labels: pull-request-available
>         Attachments: HIVE-22601.1.patch, HIVE-22601.2.patch, HIVE-22601.3.patch, HIVE-22601.patch
>
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> Only one column will be retained when putting UDTFs with multiple aliases and a top-level UNION together.
> For example, the result of the following SQL should have three columns, c1, c2 and c3.
> {code:java}
> SELECT stack(1, 'a', 'b', 'c') AS (c1, c2, c3)
> UNION ALL
> SELECT stack(1, 'd', 'e', 'f') AS (c1, c2, c3);
> {code}
> However, It's only the c3 column which I can get.
> {code:java}
> +---------+
> | _u1.c3  |
> +---------+
> | c       |
> | f       |
> +---------+
> {code}



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