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From "Phabricator (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-2597) Repeated key in GROUP BY is erroneously displayed when using DISTINCT
Date Fri, 08 Mar 2013 02:20:14 GMT

     [ https://issues.apache.org/jira/browse/HIVE-2597?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Phabricator updated HIVE-2597:
------------------------------

    Attachment: HIVE-2597.D8967.2.patch

navis updated the revision "HIVE-2597 [jira] Repeated key in GROUP BY is erroneously displayed
when using DISTINCT".

  Rebased to trunk & Addressed comments

Reviewers: JIRA

REVISION DETAIL
  https://reviews.facebook.net/D8967

CHANGE SINCE LAST DIFF
  https://reviews.facebook.net/D8967?vs=28755&id=29421#toc

AFFECTED FILES
  ql/src/java/org/apache/hadoop/hive/ql/parse/SemanticAnalyzer.java
  ql/src/test/queries/clientpositive/groupby_constant.q
  ql/src/test/results/clientpositive/groupby_constant.q.out

To: JIRA, navis
Cc: njain

                
> Repeated key in GROUP BY is erroneously displayed when using DISTINCT
> ---------------------------------------------------------------------
>
>                 Key: HIVE-2597
>                 URL: https://issues.apache.org/jira/browse/HIVE-2597
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Alex Rovner
>            Assignee: Navis
>         Attachments: HIVE-2597.D8967.1.patch, HIVE-2597.D8967.2.patch
>
>
> The following query was simplified for illustration purposes. 
> This works correctly:
> select client_tid, "" as myvalue1, "" as myvalue2 from clients cluster by client_tid
> The intent here is to produce two empty columns in between data.
> The following query does not work:
> select distinct client_tid, "" as myvalue1, "" as myvalue2 from clients cluster by client_tid
> FAILED: Error in semantic analysis: Line 1:44 Repeated key in GROUP BY ""
> The key is not repeated since the aliases were given. Seems like Hive is ignoring the
aliases when the "distinct" keyword is specified.

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