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https://issues.apache.org/jira/browse/IMPALA-6479?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Quanlong Huang updated IMPALA-6479:
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Fix Version/s: Impala 2.1
> 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 2.1, 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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