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Posted to issues@impala.apache.org by "Adam Holley (JIRA)" <ji...@apache.org> on 2018/04/03 21:45:00 UTC

[jira] [Resolved] (IMPALA-6479) Update DESCRIBE statement to respect column level privileges

     [ https://issues.apache.org/jira/browse/IMPALA-6479?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Adam Holley resolved IMPALA-6479.
---------------------------------
    Resolution: Fixed

> Update DESCRIBE statement to respect column level privileges
> ------------------------------------------------------------
>
>                 Key: IMPALA-6479
>                 URL: https://issues.apache.org/jira/browse/IMPALA-6479
>             Project: IMPALA
>          Issue Type: Improvement
>          Components: Frontend
>            Reporter: Adam Holley
>            Assignee: Adam Holley
>            Priority: Major
>             Fix For: Impala 3.0
>
>
> Currently if a user is granted select on a subset of columns on a table, the DESCRIBE command will show them all columns, and the DESCRIBE FORMATTED/EXTENDED is not allowed.
> This change would update the DESCRIBE command that if a user has select on a subset of columns, it will only show the data from the columns the user has access to.  For DESCRIBE FORMATTED/EXTENDED, if a user has some column access, but not all columns, the Location, and View * Text would be removed from the additional metadata.
> The purpose of this change is to increase consumability by allowing tools that allow users to browse data, such a for creating reports, to present only columns they have access to.  There is also a security aspect to this fix by not exposing additional data.  Other statements such a SHOW COLUMN STATS, will be handled by a separate Jira to be opened.
>  



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