Adrien Grand created LUCENE-6695:
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Summary: BlendedTermQuery
Key: LUCENE-6695
URL: https://issues.apache.org/jira/browse/LUCENE-6695
Project: Lucene - Core
Issue Type: New Feature
Reporter: Adrien Grand
Assignee: Adrien Grand
Priority: Minor
It is sometimes desirable to ignore differences between index statistics of
several terms so that they produce the same scores, for instance if you resolve
synonyms at search time or if you want to search across several fields.
Elasticsearch has been using this approach for its multi_match query for some
time now.
We already blend statistics in TopTermsBlendedFreqScoringRewrite (used by
FuzzyQuery) but it could be helpful to have a dedicated query to choose
manually which terms to blend stats from.
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