[SOLR-25] change FunctionQuery to use ComplexExplanation

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.1.0
• Assignee: Chris M. Hostetter
• Reporter: Chris M. Hostetter
• Created: 27/Jun/06 02:38
• Updated: 10/May/13 10:39
• Resolved: 04/Oct/06 18:53

Description

LUCENE-605 added a new ComplexExplanation class to the Lucene core which allows for Explanations of queries which match documents with non-positive scores – somethign that can happen quite a bit with FunctionQueries.

Here is a patch to make FunctionQuery take advantage of the new CompelxExplanation class if you are using a bleeding edge version of lucene-core.

This patch can be commited in Solr once we're ready to rev lib/lucene-core-nightly.jar again.