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https://issues.apache.org/jira/browse/LUCENE-4923?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13627826#comment-13627826
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Michael McCandless commented on LUCENE-4923:
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+1
> 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
> 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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