Alan Woodward created LUCENE-8941:
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             Summary: 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


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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