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https://issues.apache.org/jira/browse/LUCENE-8935?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jim Ferenczi updated LUCENE-8935:
---------------------------------
Attachment: LUCENE-8935.patch
Status: Open (was: Open)
Here is a patch that wraps the boolean scorer in a constant score scorer when
there is no scoring clause and the score mode is TOP_SCORES.
> BooleanQuery with no scoring clauses cannot skip documents when running
> TOP_SCORES mode
> ---------------------------------------------------------------------------------------
>
> Key: LUCENE-8935
> URL: https://issues.apache.org/jira/browse/LUCENE-8935
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Jim Ferenczi
> Priority: Minor
> Attachments: LUCENE-8935.patch
>
>
> Today a boolean query that is composed of filtering clauses only (more than
> one) cannot skip documents when the search is executed with the TOP_SCORES
> mode. However since all documents have a score of 0 it should be possible to
> early terminate the query as soon as we collected enough top hits. Wrapping
> the resulting boolean scorer in a constant score scorer should allow early
> termination in this case and would speed up the retrieval of top hits case
> considerably if the total hit count is not requested.
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