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Posted to dev@lucene.apache.org by "David Smiley (JIRA)" <ji...@apache.org> on 2017/11/15 14:03:00 UTC

[jira] [Resolved] (LUCENE-8040) Optimize IndexSearcher.collectionStatistics

     [ https://issues.apache.org/jira/browse/LUCENE-8040?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

David Smiley resolved LUCENE-8040.
----------------------------------
       Resolution: Fixed
    Fix Version/s:     (was: 7.2)
                   master (8.0)

Good. Thanks for the review/feedback!

> Optimize IndexSearcher.collectionStatistics
> -------------------------------------------
>
>                 Key: LUCENE-8040
>                 URL: https://issues.apache.org/jira/browse/LUCENE-8040
>             Project: Lucene - Core
>          Issue Type: Improvement
>          Components: core/search
>            Reporter: David Smiley
>            Assignee: David Smiley
>             Fix For: master (8.0)
>
>         Attachments: LUCENE-8040.patch, LUCENE-8040.patch, MyBenchmark.java, lucenecollectionStatisticsbench.zip
>
>
> {{IndexSearcher.collectionStatistics(field)}} can do a fair amount of work because with each invocation it will call {{MultiFields.getTerms(...)}}.  The effects of this are aggravated for queries with many fields since each field will want statistics, and also aggravated when there are many segments.



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