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https://issues.apache.org/jira/browse/LUCENE-6856?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Adrien Grand resolved LUCENE-6856.
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Resolution: Fixed
Fix Version/s: 5.4
> LRUQueryCache.CachingWrapperWeight should delegate the bulk scorer
> ------------------------------------------------------------------
>
> Key: LUCENE-6856
> URL: https://issues.apache.org/jira/browse/LUCENE-6856
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Adrien Grand
> Assignee: Adrien Grand
> Priority: Minor
> Fix For: 5.4
>
> Attachments: LUCENE-6856.patch
>
>
> I think we have two issues with LRUQueryCache.CachingWrapperWeight:
> - when generating cached entries, it creates a Scorer and loads it into a
> DocIdSet while it would be more efficient to use a BulkScorer to do so since
> we consume all matching documents
> - when a query should not be cached (eg. because it has not be seen often
> enough yet), we do not delegate the bulk scorer, which means that we will use
> a DefaultBulkScorer on top of the scorer, which can be significantly slower
> for some queries (eg. disjunctions)
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