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Posted to dev@lucene.apache.org by "Robert Muir (JIRA)" <ji...@apache.org> on 2013/04/10 08:30:19 UTC
[jira] [Created] (LUCENE-4923) remove minShouldMatch/speed up
DisjunctionSumScorer
Robert Muir created LUCENE-4923:
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Summary: 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
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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