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Posted to dev@hive.apache.org by "Ryan Shih (JIRA)" <ji...@apache.org> on 2009/03/09 10:22:50 UTC
[jira] Commented: (HIVE-326) [hive] groupby count distinct with
nulls has some problems
[ 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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