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https://issues.apache.org/jira/browse/OAK-1735?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Marth updated OAK-1735:
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Labels: performance (was: )
> Query: automatically update index statistics to get better cost estimates
> -------------------------------------------------------------------------
>
> Key: OAK-1735
> URL: https://issues.apache.org/jira/browse/OAK-1735
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: query
> Reporter: Thomas Mueller
> Labels: performance
> Fix For: 1.3.1
>
>
> The indexes don't currently have good cost estimates, so that in many cases
> the best index is not used. The cost estimation of the indexes needs
> statistics (for example, how many entries are in an index, or how many
> entries are stored in a index key). It should be possible to implement
> auto-update of statistics for the node type index, the property index, and
> the ordered index. Possibly, this could be done asynchronously.
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