Andy Webb created SOLR-16643:
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Summary: Add multiplying boost option to ReRank query parser
Key: SOLR-16643
URL: https://issues.apache.org/jira/browse/SOLR-16643
Project: Solr
Issue Type: Improvement
Security Level: Public (Default Security Level. Issues are Public)
Components: search
Affects Versions: 9.1.1
Reporter: Andy Webb
I noticed the ReRank query parser adds the score from the {{reRankQuery}} to
the original score. This means that existing edismax {{boost}} functions can't
easily be migrated to use reranking instead, and reranking functions have the
same issue as is noted at
https://solr.apache.org/guide/solr/latest/query-guide/dismax-query-parser.html#bq-bf-shortcomings.
In this PR (link coming shortly!) I've added a {{reRankOperator=multiply}}
option to the ReRank parser which enables reranking functions to multiply the
score instead.
Is this a good thing to do, or have I missed a reason why only additive boosts
should be available?
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