[LUCENE-6878] TopDocs.merge should use updateTop instead of pop / add

• Type: Improvement
• Status: Closed
• Priority: Trivial
• Resolution: Fixed
• Affects Version/s: 6.0
• Fix Version/s: 5.4, 6.0
• Component/s: core/search
• Lucene Fields: New
• Assignee: Adrien Grand
• Reporter: Daniel Jelinski
• Created: 02/Nov/15 22:11
• Updated: 28/Aug/22 14:45
• Resolved: 03/Nov/15 14:35

Description

The function TopDocs.merge uses PriorityQueue in a pattern: pop, update value (ref.hitIndex++), add. JavaDocs for PriorityQueue.updateTop say that using this function instead should be at least twice as fast.