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https://issues.apache.org/jira/browse/HIVE-1466?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13850110#comment-13850110
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Prasad Mujumdar commented on HIVE-1466:
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[~thejas] Thanks for pointing that out. I just updated the wiki to reflect the
syntax changes. will add a rel note on the ticket.
I guess it's a good idea to have a doc jira along with the a patch that
introduces a user facing change (SQL syntax, script/tools etc). The reviewers
should also verify that before approving the patch.
> Add NULL DEFINED AS to ROW FORMAT specification
> -----------------------------------------------
>
> Key: HIVE-1466
> URL: https://issues.apache.org/jira/browse/HIVE-1466
> Project: Hive
> Issue Type: New Feature
> Reporter: Adam Kramer
> Assignee: Prasad Mujumdar
> Attachments: HIVE-1466.1.patch, HIVE-1466.2.patch
>
>
> NULL values are passed to transformers as a literal backslash and a literal
> N. NULL values are saved when INSERT OVERWRITing LOCAL DIRECTORies as "NULL".
> This is inconsistent.
> The ROW FORMAT specification of tables should be able to specify the manner
> in which a null character is represented. ROW FORMAT NULL DEFINED AS '\N' or
> '\003' or whatever should apply to all instances of table export and saving.
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