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Posted to dev@lucene.apache.org by "Adrien Grand (JIRA)" <ji...@apache.org> on 2016/06/14 14:41:01 UTC

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

     [ https://issues.apache.org/jira/browse/LUCENE-7330?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Adrien Grand resolved LUCENE-7330.
----------------------------------
       Resolution: Fixed
    Fix Version/s: 6.2
                   master (7.0)

> 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
>             Fix For: master (7.0), 6.2
>
>         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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