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https://issues.apache.org/jira/browse/OAK-2679?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Thomas Mueller resolved OAK-2679.
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Resolution: Fixed
> Query engine: faster cost calculation
> -------------------------------------
>
> Key: OAK-2679
> URL: https://issues.apache.org/jira/browse/OAK-2679
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: core, query
> Reporter: Thomas Mueller
> Assignee: Thomas Mueller
> Labels: performance
> Fix For: 1.3.7
>
> Attachments: 0001-OAK-2679-Reduce-execution-plan-overhead_0.2.patch,
> OAK-2679-2.patch, OAK-2679.patch, executionplancache.patch
>
>
> If there are many indexes, preparing a query can take a long time, in
> relation to executing the query.
> The query execution plans can be cached. The cache should be invalidated if
> there are new indexes, or indexes are changed; a simple solution might be to
> use a timeout, and / or a manual cache clean via JMX or so.
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