Adrien Grand created LUCENE-7993:
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Summary: Speed up phrase queries when total hit count is not needed
Key: LUCENE-7993
URL: https://issues.apache.org/jira/browse/LUCENE-7993
Project: Lucene - Core
Issue Type: Improvement
Reporter: Adrien Grand
Priority: Minor
Follow-up of LUCENE-4100: When thinking about the API that we needed to
introduce to support MAXSCORE, I wondered whether the same API could support
other optimizations. The idea is that when running phrase queries, before we
start reading positions, we already have access to the term frequency of each
term. And the frequency of the phrase is bounded by the minimum term frequency
of the involved terms. So if the score for that minimum term frequency is not
competitive then it means that the score for the phrase is not competitive
either if we can assume that the score increases (or stagnates) when the term
freq increases, which sounds like an ok requirement for a sane Similarity?
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