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https://issues.apache.org/jira/browse/HIVE-239?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12665520#action_12665520
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Ashish Thusoo commented on HIVE-239:
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Looks fine to me.

The error message though has a misspelling for column...

Can you fix that. I will check it in once that is done...

> alter table repalce columns allows adding of new columns with the same name 
> as that of a partition column which corrupts metadata
> ---------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-239
>                 URL: https://issues.apache.org/jira/browse/HIVE-239
>             Project: Hadoop Hive
>          Issue Type: Bug
>          Components: Metastore
>            Reporter: Prasad Chakka
>            Assignee: Prasad Chakka
>         Attachments: hive-239.patch, hive-239.patch
>
>
> there is no way for user to revert back and this check should be done in 
> alter table function.

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