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Posted to dev@lucene.apache.org by "Adrien Grand (JIRA)" <ji...@apache.org> on 2015/10/27 14:13:27 UTC

[jira] [Created] (LUCENE-6856) LRUQueryCache.CachingWrapperWeight should delegate the bulk scorer

Adrien Grand created LUCENE-6856:
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             Summary: 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


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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