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https://issues.apache.org/jira/browse/HIVE-8848?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14218906#comment-14218906
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Edward Capriolo commented on HIVE-8848:
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Nulls are supposed to be stored as a literal \N
> data loading from text files or text file processing doesn't handle nulls
> correctly
> -----------------------------------------------------------------------------------
>
> Key: HIVE-8848
> URL: https://issues.apache.org/jira/browse/HIVE-8848
> Project: Hive
> Issue Type: Bug
> Reporter: Sergey Shelukhin
> Assignee: Sergey Shelukhin
> Attachments: HIVE-8848.patch
>
>
> I am not sure how nulls are supposed to be stored in text tables, but after
> loading some data with "null" or "NULL" strings, or x00 characters, we get
> bunch of annoying logging from LazyPrimitive that data is not in INT format
> and was converted to null, with data being "null" (string saying "null", I
> assume from the code).
> Either load should load them as nulls, or there should be some defined way to
> load nulls.
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