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Posted to dev@lucene.apache.org by "Adrien Grand (JIRA)" <ji...@apache.org> on 2013/04/10 22:31:15 UTC

[jira] [Created] (LUCENE-4925) IndexSearcher.search is broken when IndexSearcher.executor != null and the sort contains SortField.FIELD_SCORE

Adrien Grand created LUCENE-4925:
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             Summary: IndexSearcher.search is broken when IndexSearcher.executor != null and the sort contains SortField.FIELD_SCORE
                 Key: LUCENE-4925
                 URL: https://issues.apache.org/jira/browse/LUCENE-4925
             Project: Lucene - Core
          Issue Type: Bug
    Affects Versions: 4.2.1
            Reporter: Adrien Grand
            Assignee: Adrien Grand
             Fix For: 4.3


When executor != null, IndexSearcher performs two passes to compute the top docs. This doesn't work when the sort contains SortField.FIELD_SCORE because the second pass doesn't have access to scores computed in the first pass.  Since search(...) doesn't compute scores when there is a sort, they are all Float.NaN.

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