rmuir commented on PR #13072:
URL: https://github.com/apache/lucene/pull/13072#issuecomment-1968087576
I think the optimization may be similar to the one done in
AutomatonTermsEnum?
https://github.com/apache/lucene/blob/main/lucene/core/src/java/org/apache/lucene/index/AutomatonTermsEnum.java#L149-L153
When "ping-ponging" the term dictionary against the automaton, it tracks
`visited` bitset and looks for such loops in the automaton. when it finds one,
it temporarily acts like a TermRangeQuery.
I think, it works a bit more general than just prefixquery and also helps
with regex and wildcard queries too.
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