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https://issues.apache.org/jira/browse/DERBY-2207?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12563682#action_12563682
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Daniel John Debrunner commented on DERBY-2207:
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> I think the changing of the current role should invalidate the (activation
> of) the prepared statement here, forcing a re-check at the second execute.
Is this some new mechanism, because today prepared statements are invalidated,
not activations?
I think invalidating the prepared statements is a bad plan. A SET ROLE will
become a common operation, especially for routines. Having a routine execution
invalidate any prepared statements will cause tremendous performance problems
as all users executing the routine will be constantly invalidating each other's
plans.
I agree dropping a role should perform the invalidations, but not resetting a
role.
> Improve usability of Derby's client/server security by implementing ANSI Roles
> ------------------------------------------------------------------------------
>
> Key: DERBY-2207
> URL: https://issues.apache.org/jira/browse/DERBY-2207
> Project: Derby
> Issue Type: New Feature
> Components: Security, SQL
> Reporter: Rick Hillegas
> Assignee: Dag H. Wanvik
> Attachments: spec.html, spec.html, spec.html, spec.html, spec.html,
> spec.html
>
>
> Implementing ANSI Roles will make it easier to manage security for multi-user
> applications with high user turnover.
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