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From "Tuong Truong (JIRA)" <>
Subject [jira] [Commented] (SENTRY-74) Add column-level privileges for Hive/Impala
Date Thu, 14 Aug 2014 15:52:12 GMT


Tuong Truong commented on SENTRY-74:

Hi  [~dapengsun],

Yike,  having to do it for individual column is not user friendly.   A typical BigData table
may have hundreds of columns; it will be a pain to deal with multiple columns in this manner.
 It probably more useful to enhance the policy parser to handle multiple column specification.
  It's more likely that a user is blocked access a small subset of the columns to protect
some sensitive data while allow access to the rest.

> Add column-level privileges for Hive/Impala
> -------------------------------------------
>                 Key: SENTRY-74
>                 URL:
>             Project: Sentry
>          Issue Type: Improvement
>    Affects Versions: 1.3.0
>            Reporter: Jeremy Beard
>            Assignee: Dapeng Sun
>             Fix For: 1.5.0
>         Attachments: Design Document of Column-Level Access Control_v1.pdf
> Currently the finest grain of privilege is at the table/view level. This leads to the
unwieldy scenario where a different view has to be created for each combination of columns
that need to be restricted. With column level privileges this would not be required.
> In the policy file column privileges might potentially look like:
> server=server1->db=default->table=employees->column=salary->action=select

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