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https://issues.apache.org/jira/browse/LUCENE-4923?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael McCandless resolved LUCENE-4923.
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Resolution: Fixed
Fix Version/s: 4.3
5.0
I think Rob committed this to 4.3/5.x? No message from commit bot ... I think
this was when it was sleeping.
> remove minShouldMatch/speed up DisjunctionSumScorer
> ---------------------------------------------------
>
> Key: LUCENE-4923
> URL: https://issues.apache.org/jira/browse/LUCENE-4923
> Project: Lucene - Core
> Issue Type: Improvement
> Components: core/query/scoring
> Affects Versions: 4.3
> Reporter: Robert Muir
> Fix For: 5.0, 4.3
>
> Attachments: LUCENE-4923.patch
>
>
> LUCENE-4571 added a MinShouldMatchScorer: capable of using advance() on
> subscorers for minShouldMatch > 1.
> However, we didn't yet cleanup the (now dead) minShouldMatch logic from
> DisjunctionSumScorer: which is now only used for pure disjunctions. This can
> also give some reasonable performance improvements for in-order collection.
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