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From "Arvind Prabhakar (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HIVE-287) support count(*) and count distinct on multiple columns
Date Tue, 13 Jul 2010 23:30:53 GMT

    [ https://issues.apache.org/jira/browse/HIVE-287?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12888106#action_12888106
] 

Arvind Prabhakar commented on HIVE-287:
---------------------------------------

@John: I updated the UDAF documentation on the wiki at http://wiki.apache.org/hadoop/Hive/LanguageManual/UDF
and also added a short blurb regarding the various interface changes on the UDAF tutorial
page http://wiki.apache.org/hadoop/Hive/GenericUDAFCaseStudy#Writing_the_source. Please let
me know if there are other places that need to be updated as well.

> support count(*) and count distinct on multiple columns
> -------------------------------------------------------
>
>                 Key: HIVE-287
>                 URL: https://issues.apache.org/jira/browse/HIVE-287
>             Project: Hadoop Hive
>          Issue Type: Bug
>          Components: Query Processor
>    Affects Versions: 0.6.0
>            Reporter: Namit Jain
>            Assignee: Arvind Prabhakar
>             Fix For: 0.6.0, 0.7.0
>
>         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, HIVE-287-6-branch-0.6.patch, HIVE-287-6-trunk.patch
>
>
> The following query does not work:
> select count(distinct col1, col2) from Tbl

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