[jira] [Commented] (HIVE-4046) Column masking

["Carl Steinbach (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-4046?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13582648#comment-13582648 ] 

Carl Steinbach commented on HIVE-4046:
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I think it's possible to accomplish most of this functionality using views in combination with authorization.

I'm also concerned that with the proposed behavior users will have trouble differentiating between the case where they aren't allowed to read a column and the other case where they do have permission to read the column, but all of the values are actually NULL.
                
> Column masking
> --------------
>
>                 Key: HIVE-4046
>                 URL: https://issues.apache.org/jira/browse/HIVE-4046
>             Project: Hive
>          Issue Type: New Feature
>          Components: Authorization, CLI, Metastore, Query Processor, Security
>    Affects Versions: 0.11.0
>            Reporter: Samuel Yuan
>            Assignee: Samuel Yuan
>
> Sometimes data in a table needs to be kept around but made inaccessible. Right now it is possible to offline a table or a partition, but not a specific column of a partition. Also, accessing an offlined table results in an error. With this change, it will be possible to mask a column at the partition level, causing all further queries to that column to return null.

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