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https://issues.apache.org/jira/browse/DERBY-4934?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kristian Waagan closed DERBY-4934.
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Resolution: Fixed
Fix Version/s: 10.8.1.2
The feature has been implemented and delivered as part of the 10.8 release.
Closing issue.
> Provide automatic update and creation of index cardinality statistics (istat)
> -----------------------------------------------------------------------------
>
> Key: DERBY-4934
> URL: https://issues.apache.org/jira/browse/DERBY-4934
> Project: Derby
> Issue Type: Task
> Components: SQL, Store
> Affects Versions: 10.8.1.2
> Reporter: Kristian Waagan
> Assignee: Kristian Waagan
> Fix For: 10.8.1.2
>
>
> Derby has been having problems with stale index cardinality statistics
> causing performance degradation because the optimizer picks a sub-optimal
> plan.
> This master JIRA issue tracks the addition of a feature that will
> automatically update and create index cardinality statistics.
> Note: For brevity I have decided to call the the feature istat during
> development :)
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