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From "He Yongqiang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-2415) disallow partition column names when doing replace columns
Date Tue, 30 Aug 2011 20:47:16 GMT

    [ https://issues.apache.org/jira/browse/HIVE-2415?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13094094#comment-13094094
] 

He Yongqiang commented on HIVE-2415:
------------------------------------

@Ashutosh Chauhan, today it is doing 2 metastore calls. one is in DDLSemanticAnalyzer, and
the other is in DDLTask. Merging these 2 (check and change) to metastore server will save
one metastore call, but add more load to metastore. Since this is only for a DDL command,
it should be fine.


> 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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