[LUCENE-5103] join on single-valued field with deleted docs scores too few docs

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.3.1
• Fix Version/s: 4.4
• Component/s: modules/join
• Lucene Fields: New, Patch Available
• Assignee: David Smiley
• Reporter: David Smiley
• Created: 11/Jul/13 06:40
• Updated: 16/Jul/13 14:05
• Resolved: 13/Jul/13 13:38

Description

TermsIncludingScoreQuery has an inner class SVInnerScorer used when the "to" side of a join is single-valued. This has a nextDocOutOfOrder() method that is faulty when there are deleted documents, and a document that is deleted is matched by the join. It'll terminate with NO_MORE_DOCS prematurely. Interestingly, it appears MVInnerScorer (multi-valued) was coded properly to not have this problem.