[LUCENE-7486] DisjunctionMaxScorer Initializes scoreMax to Zero Preventing From Using Negative Scores

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 5.5.2
• Fix Version/s: 6.3, 7.0
• Component/s: core/search
• Lucene Fields: New
• Assignee: Uwe Schindler
• Reporter: Ivan Provalov
• Created: 10/Oct/16 15:51
• Updated: 28/Aug/22 15:04
• Resolved: 11/Oct/16 16:09

Description

We are using a log of probability for scoring, which gives us negative scores.

DisjunctionMaxScorer initializes scoreMax in the score(...) function to zero preventing us from using negative scores. Is there a reason it couldn't be initialized to something like this:

float scoreMax = Float.MAX_VALUE * -1;