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

["Adrien Grand (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LUCENE-4925?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Adrien Grand resolved LUCENE-4925.
----------------------------------

    Resolution: Fixed
    
> 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
>
>         Attachments: LUCENE-4925.patch
>
>
> 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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