[
https://issues.apache.org/jira/browse/DERBY-3906?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Mamta A. Satoor updated DERBY-3906:
-----------------------------------
Urgency: Normal
Labels: derby_triage10_10 (was: )
> SQL roles: add caching of the role grant graph for performance
> ---------------------------------------------------------------
>
> Key: DERBY-3906
> URL: https://issues.apache.org/jira/browse/DERBY-3906
> Project: Derby
> Issue Type: Improvement
> Components: SQL
> Reporter: Dag H. Wanvik
> Priority: Minor
> Labels: derby_triage10_10
>
> In the first implementation, the graph of the grant role relation is built as
> needed.
> For DDL statements this is acceptable, but less less so for the following
> case:
> When a session changes it's role from a non-null role ("old role"), any
> activations
> of prepared statements that relied on a role in "old role"s grant closure
> will need re-checking.
> So, computing this, requires the grant graph. Setting a role is a more
> frequent operations,
> e.g. in a stored routine, so re-building the grant graph each time is (too)
> expensive.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
