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From "Michael McCandless (JIRA)" <j...@apache.org>
Subject [jira] Created: (LUCENE-1656) When sorting by field, IndexSearcher should not compute scores by default
Date Sun, 24 May 2009 12:54:45 GMT
When sorting by field, IndexSearcher should not compute scores by default
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                 Key: LUCENE-1656
                 URL: https://issues.apache.org/jira/browse/LUCENE-1656
             Project: Lucene - Java
          Issue Type: Improvement
          Components: Search
            Reporter: Michael McCandless
            Assignee: Michael McCandless
            Priority: Minor
             Fix For: 2.9


In 2.9 we've added the ability to turn off scoring (maxScore &
trackScores, separately) when sorting by field.

I expect most apps don't use the scores when sorting by field, and
there's a sizable performance gain when scoring is off, so I think for
2.9 we should not score by default, and add show in CHANGES how to
enable scoring if you rely on it.

If there are no objections, I'll commit that change in a day or two
(it's trivial).


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