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Posted to dev@lucene.apache.org by "Adrien Grand (JIRA)" <ji...@apache.org> on 2015/12/31 15:28:49 UTC

[jira] [Resolved] (LUCENE-6940) Bulk scoring could speed up MUST_NOT clauses

     [ https://issues.apache.org/jira/browse/LUCENE-6940?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Adrien Grand resolved LUCENE-6940.
----------------------------------
       Resolution: Fixed
    Fix Version/s: Trunk
                   5.5

> Bulk scoring could speed up MUST_NOT clauses
> --------------------------------------------
>
>                 Key: LUCENE-6940
>                 URL: https://issues.apache.org/jira/browse/LUCENE-6940
>             Project: Lucene - Core
>          Issue Type: Improvement
>            Reporter: Adrien Grand
>            Assignee: Adrien Grand
>            Priority: Minor
>             Fix For: 5.5, Trunk
>
>         Attachments: LUCENE-6940.patch, LUCENE-6940.patch
>
>
> Today when you have MUST_NOT clauses, the ReqExclScorer is used and needs to check the excluded clauses on every iteration. I suspect we could speed things up by having a BulkScorer that would advance the excluded clause first and then tell the required clause to bulk score up to the next excluded document.



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