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https://issues.apache.org/jira/browse/HIVE-2415?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13100473#comment-13100473
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Ashutosh Chauhan commented on HIVE-2415:
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We discussed this a bit in yesterday's contributor meeting. The general view
was all of these checks make sense in HiveMetaStore. For the backdoor you are
describing, John suggested there could be an "admin" mode which will skip these
checks in metastore. So, to make changes generally not permitted you will run
in "admin" mode and all other times you will run in regular user mode.
> disallow partition column names when doing replace columns
> ----------------------------------------------------------
>
> Key: HIVE-2415
> URL: https://issues.apache.org/jira/browse/HIVE-2415
> Project: Hive
> Issue Type: Bug
> Reporter: He Yongqiang
> Assignee: He Yongqiang
> Attachments: HIVE-2415.1.patch
>
>
> alter table replace columns allows to add a column with the same name as
> partition column, which introduced inconsistency.
> We should disallow this.
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