[LUCENE-4923] remove minShouldMatch/speed up DisjunctionSumScorer

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.3
• Fix Version/s: 4.3, 6.0
• Component/s: core/query/scoring
• Lucene Fields: New
• Assignee: Unassigned
• Reporter: Robert Muir
• Created: 10/Apr/13 06:30
• Updated: 28/Aug/22 13:43
• Resolved: 21/Apr/13 11:45

Description

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.