Hi Chris,
Thanks! Before your great suggestions, I give up using function query to
calculate product of score and rankingField and using exactly the same with
your boost query solution. Of course it works fine. The next step will be
design suitable function to output a ranking value that also consider with
popularity, recency, relevance and also rating of documents.
Many thanks to the community.
Floyd
2012/11/21 Chris Hostetter <hossman_luc...@fucit.org>
>
> : But the sort=product(score, rankingField) is not working in my test. What
> : probably wrong?
>
> the problem is "score" is not a field or a function -- Solr doesn't know
> exactly what "score" you want it to use there (scores from which query?)
>
> You either need to refrence the query in the function (using the
> "query(...)" function) or you need to incorporate your function directly
> into the score (using something like the "boost" QParser).
>
> Unless you need the "score" of the docs, from your orriginal query, to be
> returned in the fl, or used in some other clause of your sort, i would
> suggest using the boost parser -- that way your final scores will match
> the scores you computed with the function...
>
> qq=your original query
> q={!boost b=rankingField v=$qq}
>
>
> https://lucene.apache.org/solr/4_0_0/solr-core/org/apache/solr/search/BoostQParserPlugin.html
> https://people.apache.org/~hossman/ac2012eu/
>
>
> -Hoss
>
