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From "Arvind Prabhakar (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HIVE-287) count distinct on multiple columns does not work
Date Wed, 07 Jul 2010 01:27:51 GMT

     [ https://issues.apache.org/jira/browse/HIVE-287?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Arvind Prabhakar updated HIVE-287:
----------------------------------

    Status: Patch Available  (was: Open)

Uploaded patch for trunk and branch-0.6. Ran all the tests on trunk and did spot testing on
branch-0.6.

*Changes from Previous patch:*
* Modified the implementation of {{AbstractGenericUDAFResolver}} to raise an exception when
invoked with the {{UDAF(STAR)}} syntax.
* Added negative test cases to assert that the current UDAFs present in the code other than
{{COUNT}} do not accept the {{UDAF(STAR)}} syntax.
* Added {{EXPLAIN}} directives for the queries run in {{udf_count.q}} test file.

Will attempt to post the patch on review board as well.


> count distinct on multiple columns does not work
> ------------------------------------------------
>
>                 Key: HIVE-287
>                 URL: https://issues.apache.org/jira/browse/HIVE-287
>             Project: Hadoop Hive
>          Issue Type: Bug
>          Components: Query Processor
>            Reporter: Namit Jain
>            Assignee: Arvind Prabhakar
>         Attachments: HIVE-287-1.patch, HIVE-287-2.patch, HIVE-287-3.patch, HIVE-287-4.patch,
HIVE-287-5-branch-0.6.patch, HIVE-287-5-trunk.patch
>
>
> The following query does not work:
> select count(distinct col1, col2) from Tbl

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