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https://issues.apache.org/jira/browse/HIVE-6629?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13931835#comment-13931835
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Thejas M Nair commented on HIVE-6629:
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The sql standard says "If NONE is specified, then the current role name is
removed." . If you consider that it resets the action of 'set role' command, it
should go to the default state. Standard does not define a "set role default"
or "set role all". But standard does not allow to have more than one current
role, which explains why "all"/"default" would not make sense in standard.
In addition to the databases you referenced, I also checked Teradata, that also
follows the same Oracle style semantics. I am fine changing the action of "set
role none" to be specified by "set role all". It might also make sense to
reserve the use of "default" role for future.
[~alangates] [~ashutoshc] [~sushanth] Do you guys have an opinion on this ?
> Discuss SET ROLE NONE
> ---------------------
>
> Key: HIVE-6629
> URL: https://issues.apache.org/jira/browse/HIVE-6629
> Project: Hive
> Issue Type: Task
> Affects Versions: 0.13.0
> Reporter: Brock Noland
> Priority: Blocker
> Fix For: 0.13.0
>
>
> I understand this is well after it's been implemented. However, I think we
> need to discuss the counter-intuitive SET ROLE semantics before we release
> 0.13.
> The new Hive Authz work implements "SET ROLE NONE" similar to MySQL meaning
> that "SET ROLE NONE" actually sets your role to the default. This is
> extremely counter-intuitive.
> *
> [Oracle|http://docs.oracle.com/cd/B19306_01/server.102/b14200/statements_10004.htm]
>
> *
> [Informix|http://pic.dhe.ibm.com/infocenter/idshelp/v117/index.jsp?topic=%2Fcom.ibm.sqls.doc%2Fids_sqs_1186.htm]
> * [Vertica|https://my.vertica.com/docs/5.1.6/HTML/index.htm#15645.htm]
> *
> [SAP|http://www.sapdb.org/htmhelp/44/a17998442911d3a98200a0c9449261/content.htm]
> All of the widely deployed databases above have "SET ROLE NONE" disable all
> privileges. Those databases have the intuitive "SET ROLE ALL" or "SET ROLE
> DEFAULT" enable all privileges.
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