Hi,
A customer sends large, deeply nested boolean queries to Solr using the default
(lucene) parser.
The default scoring is summing up all the scores. For parts of this query they
would like
to use the Max score instead of the sum, e.g. for q=+A +B +(C D E) we want the
max
of C,D,E. I was thinking about writing a MaxScoreQParserPlugin returning the
max of any of its clauses,
so you could express the business requirement as this query: q=+A +B
+_query_:"{!maxscore}C D E",
where C D E could in turn be nested boolean expressions.
I cannot use DisMax, cause it only returns max across multiple fields, not
across multiple clauses.
Perhaps something like this exists somewhere? If not, any pointers for where to
start, since I'm not
intimately familiar with the Scorer/Weight APIs?
--
Jan Høydahl, search solution architect
Cominvent AS - www.cominvent.com
Solr Training - www.solrtraining.com
