ASF subversion and git services commented on LUCENE-8127:

Commit 7a383947653e8bce05ffdad7ea7d0620f9e08dac in lucene-solr's branch 
refs/heads/master from [~jpountz]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=7a38394 ]

LUCENE-8127: Speed up rewriteNoScoring when there are no MUST clauses.

> BooleanQuery with needsScores=false, rewriteNoScoring improvement
> -----------------------------------------------------------------
>                 Key: LUCENE-8127
>                 URL: https://issues.apache.org/jira/browse/LUCENE-8127
>             Project: Lucene - Core
>          Issue Type: Improvement
>            Reporter: Michael Braun
>            Priority: Minor
>         Attachments: LUCENE-8127.patch
> In the case needsScores=false, createWeight calls rewriteNoScoring before 
> creating a new BooleanWeight. This in all cases creates a new BooleanQuery, 
> even when it's not necessary (aka there are no MUST clauses). 
> The rewriteNoScoring method could check for something as simple as if 
> (clauseSets.get(Occur.MUST).size() > 0)  before creating a brand new 
> BooleanQuery. 

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