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From "Namit Jain (JIRA)" <j...@apache.org>
Subject [jira] Created: (HIVE-326) [hive] groupby count distinct with nulls has some problems
Date Thu, 05 Mar 2009 06:37:56 GMT
[hive] groupby count distinct with nulls has some problems
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                 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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