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Posted to dev@lucene.apache.org by "Adrien Grand (JIRA)" <ji...@apache.org> on 2015/10/27 14:18:27 UTC
[jira] [Updated] (LUCENE-6856) LRUQueryCache.CachingWrapperWeight
should delegate the bulk scorer
[ https://issues.apache.org/jira/browse/LUCENE-6856?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Adrien Grand updated LUCENE-6856:
---------------------------------
Attachment: LUCENE-6856.patch
Here is a patch.
> 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
> 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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