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From "Ryan Shih (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HIVE-326) [hive] groupby count distinct with nulls has some problems
Date Mon, 09 Mar 2009 09:22:50 GMT

    [ https://issues.apache.org/jira/browse/HIVE-326?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12680098#action_12680098
] 

Ryan Shih commented on HIVE-326:
--------------------------------

Sounds like a duplicate of HIVE-320, which I opened last week some time. That has a little
more information that may be useful when resolving.

> [hive] groupby count distinct with nulls has some problems
> ----------------------------------------------------------
>
>                 Key: HIVE-326
>                 URL: https://issues.apache.org/jira/browse/HIVE-326
>             Project: Hadoop Hive
>          Issue Type: Bug
>          Components: Query Processor
>            Reporter: Namit Jain
>
> select a, count(distinct b) from T group by a;
> had some problems if b is null.
> I will construct the exact testcase and get back

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