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Posted to common-dev@hadoop.apache.org by "Zheng Shao (JIRA)" <ji...@apache.org> on 2008/10/21 20:55:44 UTC

[jira] Commented: (HADOOP-4367) Hive: UDAF functions cannot handle NULL values

    [ https://issues.apache.org/jira/browse/HADOOP-4367?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12641502#action_12641502 ] 

Zheng Shao commented on HADOOP-4367:
------------------------------------

Fixed as part of JIRA-4230

> Hive: UDAF functions cannot handle NULL values
> ----------------------------------------------
>
>                 Key: HADOOP-4367
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4367
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: contrib/hive
>            Reporter: Zheng Shao
>            Assignee: Zheng Shao
>
> The UDAF functions cannot handle null values. It just throws a NullPointerException. We should properly handle null values in UDAF.
> For all UDAF functions that we have now: sum, count, ave, we should ignore the null values.

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