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https://issues.apache.org/jira/browse/PHOENIX-672?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16172588#comment-16172588
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Andrew Purtell commented on PHOENIX-672:
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bq. The HBase API in 1.3 doesn't provide the ability to merge permissions, for
example if the initial permission was 'RW' and the user grants 'X' then it
overrides the original permission to 'X'.
It's also fine to document this behavior. This consideration is orthogonal to
syntax. Someone is going to either have to specify a weird (for SQL) string
containing "RWX", not just "X", or GRANT READ,WRITE,EXECUTE not just GRANT
EXECUTE.
> Add GRANT and REVOKE commands using HBase AccessController
> ----------------------------------------------------------
>
> Key: PHOENIX-672
> URL: https://issues.apache.org/jira/browse/PHOENIX-672
> Project: Phoenix
> Issue Type: Task
> Reporter: James Taylor
> Assignee: Karan Mehta
> Labels: gsoc2016, security
>
> In HBase 0.98, cell-level security will be available. Take a look at
> [this](https://communities.intel.com/community/datastack/blog/2013/10/29/hbase-cell-security)
> excellent blog post by @apurtell. Once Phoenix works on 0.96, we should add
> support for security to our SQL grammar.
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