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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