[LUCENE-4925] IndexSearcher.search is broken when IndexSearcher.executor != null and the sort contains SortField.FIELD_SCORE

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.2.1
• Fix Version/s: 4.3
• Lucene Fields: New
• Assignee: Adrien Grand
• Reporter: Adrien Grand
• Created: 10/Apr/13 20:30
• Updated: 28/Aug/22 13:43
• Resolved: 10/Apr/13 22:14

Description

When executor != null, IndexSearcher performs two passes to compute the top docs. This doesn't work when the sort contains SortField.FIELD_SCORE because the second pass doesn't have access to scores computed in the first pass. Since search(...) doesn't compute scores when there is a sort, they are all Float.NaN.