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Posted to dev@lucene.apache.org by "Adrien Grand (JIRA)" <ji...@apache.org> on 2016/02/26 18:07:18 UTC

[jira] [Created] (LUCENE-7050) Improve the query cache heuristic to detect costly queries

Adrien Grand created LUCENE-7050:
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             Summary: Improve the query cache heuristic to detect costly queries
                 Key: LUCENE-7050
                 URL: https://issues.apache.org/jira/browse/LUCENE-7050
             Project: Lucene - Core
          Issue Type: Improvement
            Reporter: Adrien Grand
            Assignee: Adrien Grand
            Priority: Minor


Term queries, phrase queries and their combinations through boolean queries should not be cached too agressively since they can efficiently make use of skip lists. However we also have a number of queries that in practice need to visit all matches anyway like PrefixQuery, TermsQuery, PointInSetQuery, PointRangeQuery, so caching them more agressively can help avoid computing all documents that match in the whole index again and again.



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