[jira] [Resolved] (LUCENE-8412) Remove trackDocScores from TopFieldCollector factory methods

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

     [ https://issues.apache.org/jira/browse/LUCENE-8412?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Adrien Grand resolved LUCENE-8412.
----------------------------------
       Resolution: Fixed
    Fix Version/s: master (8.0)

Thanks [~mikemccand] and [~romseygeek] for looking!

> Remove trackDocScores from TopFieldCollector factory methods
> ------------------------------------------------------------
>
>                 Key: LUCENE-8412
>                 URL: https://issues.apache.org/jira/browse/LUCENE-8412
>             Project: Lucene - Core
>          Issue Type: Task
>            Reporter: Adrien Grand
>            Priority: Minor
>             Fix For: master (8.0)
>
>         Attachments: LUCENE-8412.patch
>
>
> Computing scores on top hits is fine, but the current way it is implemented - at collection time - requires to read/decode more freqs/norms and compute more scores than necessary. It would be more efficient to compute scores of top hits as a post-collection step by only advancing the scorer to hits that made the top-N list.



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