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From "Zheng Shao (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HIVE-734) problem in dealing with null
Date Fri, 07 Aug 2009 08:15:14 GMT

    [ https://issues.apache.org/jira/browse/HIVE-734?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12740446#action_12740446
] 

Zheng Shao commented on HIVE-734:
---------------------------------

With LazySimpleSerDe (the default), we represent NULL by two bytes: "\" and "N". This is in
sync with MySQL export format.
Can you try again with that?

> problem in dealing with null
> ----------------------------
>
>                 Key: HIVE-734
>                 URL: https://issues.apache.org/jira/browse/HIVE-734
>             Project: Hadoop Hive
>          Issue Type: Bug
>            Reporter: Zheng Shao
>            Assignee: Ning Zhang
>
> This command fails with the following error:
> {code}
> hive/bin/hive -e "INSERT OVERWRITE LOCAL DIRECTORY 'abc' select null from zshao_tt"
> FAILED: Error in semantic analysis:
> java.lang.RuntimeException: Internal error: Cannot find ObjectInspector for VOID
> {code}
> When 'null' is replaced by '' it works.

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