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From "Bryan Pendleton (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-2594) Revoking a privilege from an SQL Object should invalidate statements dependent on that object
Date Tue, 01 May 2007 15:44:15 GMT

    [ https://issues.apache.org/jira/browse/DERBY-2594?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12492897
] 

Bryan Pendleton commented on DERBY-2594:
----------------------------------------

This tracing seems very useful, too -- can you include it as part of your patch?


> Revoking a privilege from an SQL Object should invalidate statements dependent on that
object
> ---------------------------------------------------------------------------------------------
>
>                 Key: DERBY-2594
>                 URL: https://issues.apache.org/jira/browse/DERBY-2594
>             Project: Derby
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 10.2.1.6
>            Reporter: Dyre Tjeldvoll
>         Assigned To: Dyre Tjeldvoll
>         Attachments: revoke_prelim.diff
>
>
> Revoking a privilege on a table will currently cause the DependencyManager.invalidateFor()
to be called on the table's TablePermsDescriptor with the action=REVOKE_PRIVILEGE. However,
the prepared statements that refer to that table are dependents of the table's TableDescriptor,
but NOT its TablePermsDescriptor, so the statements are not invalidated after revoke.
> This problem is currently hidden by the fact that authorization is checked on every execution,
but this will change when language result sets are no longer reused (see DERBY-827). 

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