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From "Mafish (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HIVE-474) Support for distinct selection on two or more columns
Date Tue, 30 Mar 2010 05:38:28 GMT

    [ https://issues.apache.org/jira/browse/HIVE-474?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12851261#action_12851261
] 

Mafish commented on HIVE-474:
-----------------------------

I have uploaded a patch originated from 0.4.2rc, please have a review.

> Support for distinct selection on two or more columns
> -----------------------------------------------------
>
>                 Key: HIVE-474
>                 URL: https://issues.apache.org/jira/browse/HIVE-474
>             Project: Hadoop Hive
>          Issue Type: Improvement
>          Components: Query Processor
>            Reporter: Alexis Rondeau
>         Attachments: hive-474.1.patch
>
>
> The ability to select distinct several, individual columns as by example: 
> select count(distinct user), count(distinct session) from actions;   
> Currently returns the following failure: 
> FAILED: Error in semantic analysis: line 2:7 DISTINCT on Different Columns not Supported
user

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