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https://issues.apache.org/jira/browse/LUCENE-5424?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Adrien Grand closed LUCENE-5424.
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Resolution: Fixed
> FilteredQuery useRandomAccess() should use cost()
> -------------------------------------------------
>
> Key: LUCENE-5424
> URL: https://issues.apache.org/jira/browse/LUCENE-5424
> Project: Lucene - Core
> Issue Type: Improvement
> Components: core/query/scoring
> Reporter: David Smiley
>
> Now that Lucene's DISI has a cost() method, it's possible for FilteredQuery's
> RANDOM_ACCESS_FILTER_STRATEGY to use a smarter algorithm in its
> useRandomAccess() method. In particular, it might examine filterIter.cost()
> to see if it is greater than the cost returned by weight.scorer().cost() of
> the query.
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