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Posted to dev@lucene.apache.org by "ASF subversion and git services (JIRA)" <ji...@apache.org> on 2015/12/31 14:41:49 UTC
[jira] [Commented] (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:comment-tabpanel&focusedCommentId=15075943#comment-15075943 ]
ASF subversion and git services commented on LUCENE-6940:
---------------------------------------------------------
Commit 1722443 from [~jpountz] in branch 'dev/trunk'
[ https://svn.apache.org/r1722443 ]
LUCENE-6940: Speed up MUST_NOT clauses.
> 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
> 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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