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From "Dag H. Wanvik (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-4189) CURRENT_ROLE returns role name with double quotes around it
Date Mon, 27 Apr 2009 22:31:30 GMT

    [ https://issues.apache.org/jira/browse/DERBY-4189?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12703421#action_12703421

Dag H. Wanvik commented on DERBY-4189:

In SQL-session authorization identifiers, we see this paragraph:

    An SQL-session context contains a time-varying sequence of cells,
    known as the authorization stack, each cell of which contains either a
    user identifier, a role name, or both. This stack is maintained using
    a "last-in, firstout" discipline, and effectively only the top cell
    is visible. When an SQL-session is started, by explicit or implicit
    execution of a <connect statement>, the authorization stack is
    initialized with one cell, which contains only the user identifier
    known as the SQL-session user identifier; a role name, known as the
    SQL-session role name may be added subsequently.
    The <set session user identifier statement> changes the value of the
    current user identifier and of the SQLsession user identifier. The
    <set role statement> changes the value of the current role name.
This leads me to believe that a role name should be treated on a par with "a user identifier"
in that
it subclasses SQL-session authorization identifier. Treating CURRENT_ROLE as an identifier
makes the returned
value usable at input to SET ROLE ?, which is orthogonal.

> CURRENT_ROLE returns role name with double quotes around it
> -----------------------------------------------------------
>                 Key: DERBY-4189
>                 URL: https://issues.apache.org/jira/browse/DERBY-4189
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions:
>            Reporter: Knut Anders Hatlen
>            Priority: Minor
> CURRENT_ROLE returns the current role name with quotes around it. This does not follow
the existing pattern used by CURRENT_USER.
> Example:
> $ java -Dderby.connection.requireAuthentication=true -Dderby.database.sqlAuthorization=true
-Dderby.user.kah=secret -jar lib/derbyrun.jar ij
> ij version 10.5
> ij> connect 'jdbc:derby:db;create=true;user=kah;password=secret';
> ij> create role myrole;
> 0 rows inserted/updated/deleted
> ij> set role myrole;
> 0 rows inserted/updated/deleted
> ij> values current_user;
> 1                                                                                   
> --------------------------------------------------------------------------------------------------------------------------------
> KAH                                                                                 
> 1 row selected
> ij> values current_role;
> 1                                                                                   
> --------------------------------------------------------------------------------------------------------------------------------
> "MYROLE"                                                                            
> 1 row selected

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