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Posted to dev@lucene.apache.org by "ASF subversion and git services (JIRA)" <ji...@apache.org> on 2016/06/13 15:31:21 UTC

[jira] [Commented] (LUCENE-7330) Speed up conjunctions

    [ https://issues.apache.org/jira/browse/LUCENE-7330?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15327616#comment-15327616 ] 

ASF subversion and git services commented on LUCENE-7330:
---------------------------------------------------------

Commit 4a02813e2eec9ba5093b0e8f285e14b68b07051b in lucene-solr's branch refs/heads/branch_6x from [~jpountz]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=4a02813 ]

LUCENE-7330: Speed up conjunctions.


> Speed up conjunctions
> ---------------------
>
>                 Key: LUCENE-7330
>                 URL: https://issues.apache.org/jira/browse/LUCENE-7330
>             Project: Lucene - Core
>          Issue Type: Improvement
>            Reporter: Adrien Grand
>            Assignee: Adrien Grand
>            Priority: Minor
>         Attachments: LUCENE-7330.patch
>
>
> I am digging into some performance regressions between 4.x and 5.x which seem to be due to how we always run conjunctions with ConjunctionDISI now while 4.x had FilteredQuery, which was optimized for the case that there are only two clauses or that one of the clause supports random access. I'd like to explore the former in this issue.



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