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Posted to dev@lucene.apache.org by "Uwe Schindler (JIRA)" <ji...@apache.org> on 2010/10/15 16:27:35 UTC
[jira] Resolved: (LUCENE-2690) Do MultiTermQuery boolean rewrites
per segment
[ https://issues.apache.org/jira/browse/LUCENE-2690?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Uwe Schindler resolved LUCENE-2690.
-----------------------------------
Resolution: Fixed
Committed revision: 1022934
> Do MultiTermQuery boolean rewrites per segment
> ----------------------------------------------
>
> Key: LUCENE-2690
> URL: https://issues.apache.org/jira/browse/LUCENE-2690
> Project: Lucene - Java
> Issue Type: Improvement
> Affects Versions: 4.0
> Reporter: Uwe Schindler
> Assignee: Uwe Schindler
> Fix For: 4.0
>
> Attachments: LUCENE-2690-attributes.patch, LUCENE-2690-attributes.patch, LUCENE-2690-attributes.patch, LUCENE-2690-hack.patch, LUCENE-2690.patch, LUCENE-2690.patch, LUCENE-2690.patch, LUCENE-2690.patch, LUCENE-2690.patch, LUCENE-2690.patch, LUCENE-2690.patch, LUCENE-2690.patch, LUCENE-2690.patch, LUCENE-2690.patch, LUCENE-2690.patch, LUCENE-2690.patch, LUCENE-2690.patch, LUCENE-2690.patch, LUCENE-2690.patch, LUCENE-2690.patch, LUCENE-2690.patch, LUCENE-2690.patch
>
>
> MultiTermQuery currently rewrites FuzzyQuery (using TopTermsBooleanQueryRewrite), the auto constant rewrite method and the ScoringBQ rewrite methods using a MultiFields wrapper on the top-level reader. This is inefficient.
> This patch changes the rewrite modes to do the rewrites per segment and uses some additional datastructures (hashed sets/maps) to exclude duplicate terms. All tests currently pass, but FuzzyQuery's tests should not, because it depends for the minimum score handling, that the terms are collected in order..
> Robert will fix FuzzyQuery in this issue, too. This patch is just a start.
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