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Posted to dev@lucene.apache.org by "Adrien Grand (JIRA)" <ji...@apache.org> on 2015/05/21 14:06:00 UTC
[jira] [Reopened] (LUCENE-6458) MultiTermQuery's FILTER rewrite
method should support skipping whenever possible
[ https://issues.apache.org/jira/browse/LUCENE-6458?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Adrien Grand reopened LUCENE-6458:
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I just noticed that while my changes helped rewrite to a BooleanQuery and use BS2 whenever possible, they never propagate BS1 as a bulk scorer.
> MultiTermQuery's FILTER rewrite method should support skipping whenever possible
> --------------------------------------------------------------------------------
>
> Key: LUCENE-6458
> URL: https://issues.apache.org/jira/browse/LUCENE-6458
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Adrien Grand
> Assignee: Adrien Grand
> Priority: Minor
> Fix For: Trunk, 5.2
>
> Attachments: LUCENE-6458.patch, LUCENE-6458.patch, wikimedium.10M.nostopwords.tasks
>
>
> Today MultiTermQuery's FILTER rewrite always builds a bit set fom all matching terms. This means that we need to consume the entire postings lists of all matching terms. Instead we should try to execute like regular disjunctions when there are few terms.
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