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https://issues.apache.org/jira/browse/LUCENE-8060?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16564923#comment-16564923
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ASF subversion and git services commented on LUCENE-8060:
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Commit 99dbe936818add5723f2014a90bd0ea8a17c8f19 in lucene-solr's branch
refs/heads/master from [~jpountz]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=99dbe93 ]
LUCENE-8060: IndexSearcher's search and searchAfter methods now only compute
total hit counts accurately up to 1,000.
> Enable top-docs collection optimizations by default
> ---------------------------------------------------
>
> Key: LUCENE-8060
> URL: https://issues.apache.org/jira/browse/LUCENE-8060
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Adrien Grand
> Priority: Minor
> Fix For: master (8.0)
>
> Attachments: LUCENE-8060.patch
>
>
> We are getting optimizations when hit counts are not required (sorted
> indexes, MAXSCORE, short-circuiting of phrase queries) but our users won't
> benefit from them unless we disable exact hit counts by default or we require
> them to tell us whether hit counts are required.
> I think making hit counts approximate by default is going to be a bit trappy,
> so I'm rather leaning towards requiring users to tell us explicitly whether
> they need total hit counts. I can think of two ways to do that: either by
> passing a boolean to the IndexSearcher constructor or by adding a boolean to
> all methods that produce TopDocs instances. I like the latter better but I'm
> open to discussion or other ideas?
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