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https://issues.apache.org/jira/browse/LUCENE-8941?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16901975#comment-16901975
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ASF subversion and git services commented on LUCENE-8941:
---------------------------------------------------------

Commit fa72da1c7112a2e5c259f1f0181e6b27766ed4ad in lucene-solr's branch 
refs/heads/master from Alan Woodward
[ https://gitbox.apache.org/repos/asf?p=lucene-solr.git;h=fa72da1 ]

LUCENE-8941: Build wildcard matches lazily


> Build wildcard matches more lazily
> ----------------------------------
>
>                 Key: LUCENE-8941
>                 URL: https://issues.apache.org/jira/browse/LUCENE-8941
>             Project: Lucene - Core
>          Issue Type: Improvement
>            Reporter: Alan Woodward
>            Assignee: Alan Woodward
>            Priority: Major
>         Attachments: LUCENE-8941.patch, LUCENE-8941.patch
>
>
> When retrieving a Matches object from a multi-term query, such as an 
> AutomatonQuery or TermInSetQuery, we currently find all matching term 
> iterators up-front, to return a disjunction over all of them.  This can be 
> inefficient if we're only interested in finding out if anything matched, and 
> are iterating over a different field to retrieve offsets.
> We can improve this by returning immediately when the first matching term is 
> found, and only collecting other matching terms when we start iterating.



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