[ 
http://issues.apache.org/jira/browse/DERBY-1330?page=comments#action_12425919 ] 
            
Mamta A. Satoor commented on DERBY-1330:
----------------------------------------

Laura, your understanding of the current behavior for revoke statement and 
views is correct.

This behavior applies only to views. A trigger can't be dependent on another 
trigger. And hence when a revoke trigger is issued, you will not run into 
cascading problem. Same is true for foreign key constraints and hence one will 
not run into cascading problems with constraints.

Hope this answers your question.

> Provide runtime privilege checking for grant/revoke functionality
> -----------------------------------------------------------------
>
>                 Key: DERBY-1330
>                 URL: http://issues.apache.org/jira/browse/DERBY-1330
>             Project: Derby
>          Issue Type: Sub-task
>          Components: SQL
>    Affects Versions: 10.2.0.0
>            Reporter: Mamta A. Satoor
>         Assigned To: Mamta A. Satoor
>         Attachments: AuthorizationModelForDerbySQLStandardAuthorization.html, 
> AuthorizationModelForDerbySQLStandardAuthorizationV2.html, 
> DERBY1330javaDocWarningsDiffV9.txt, DERBY1330javaDocWarningsStatV9.txt, 
> Derby1330MinorCleanupV7diff.txt, Derby1330MinorCleanupV7stat.txt, 
> Derby1330PrivilegeCollectionV2diff.txt, 
> Derby1330PrivilegeCollectionV2stat.txt, 
> Derby1330PrivilegeCollectionV3diff.txt, 
> Derby1330PrivilegeCollectionV3stat.txt, 
> Derby1330setUUIDinDataDictionaryV10diff.txt, 
> Derby1330setUUIDinDataDictionaryV10stat.txt, 
> Derby1330setUUIDinDataDictionaryV8diff.txt, 
> Derby1330setUUIDinDataDictionaryV8stat.txt, 
> Derby1330uuidIndexForPermsSystemTablesV4diff.txt, 
> Derby1330uuidIndexForPermsSystemTablesV4stat.txt, 
> Derby1330uuidIndexForPermsSystemTablesV5diff.txt, 
> Derby1330uuidIndexForPermsSystemTablesV5stat.txt, 
> Derby1330uuidIndexForPermsSystemTablesV6diff.txt, 
> Derby1330uuidIndexForPermsSystemTablesV6stat.txt, 
> Derby1330ViewPrivilegeCollectionV1diff.txt, 
> Derby1330ViewPrivilegeCollectionV1stat.txt
>
>
> Additional work needs to be done for grant/revoke to make sure that only 
> users with required privileges can access various database objects. In order 
> to do that, first we need to collect the privilege requirements for various 
> database objects and store them in SYS.SYSREQUIREDPERM. Once we have this 
> information then when a user tries to access an object, the required 
> SYS.SYSREQUIREDPERM privileges for the object will be checked against the 
> user privileges in SYS.SYSTABLEPERMS, SYS.SYSCOLPERMS and 
> SYS.SYSROUTINEPERMS. The database object access will succeed only if the user 
> has the necessary privileges.
> SYS.SYSTABLEPERMS, SYS.SYSCOLPERMS and SYS.SYSROUTINEPERMS are already 
> populated by Satheesh's work on DERBY-464. But SYS.SYSREQUIREDPERM doesn't 
> have any information in it at this point and hence no runtime privilege 
> checking is getting done at this point.

-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: 
http://issues.apache.org/jira/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira


Reply via email to