There is a ticket:
https://issues.apache.org/jira/browse/SOLR-1298


On Thursday 10 March 2011 15:46:55 Peter Sturge wrote:
> Hi Markus,
> 
> Thanks for your input. Hmmm, so it sounds like all those nice math
> functions operate only on the Lucene tf/idf score.
> In the link you gave, there is mention of 'Returning distances (and
> any arbitrary function query value) is currently under development.'
> (the workaround mentioned doesn't work for product()).
> Do you know if there is a JIRA ticket for this (I couldn't ssee one in
> a search of JIRA)?
> 
> Thanks again!
> Peter
> 
> 
> On Thu, Mar 10, 2011 at 1:19 PM, Markus Jelsma
> 
> <markus.jel...@openindex.io> wrote:
> > Not at the moment if i'm not mistaken. The same issue is with Solr 3.1
> > where relative distances are not being returned as field value when
> > doing spatial filtering. To retrieve the value one must use the score as
> > the some pseudo field.
> > 
> > http://wiki.apache.org/solr/SpatialSearch#Returning_the_distance
> > 
> > On Wednesday 09 March 2011 23:06:33 Peter Sturge wrote:
> >> Hi,
> >> 
> >> I was wondering if it is possible during a query to create a returned
> >> field 'on the fly' (like function query, but for concrete values, not
> >> score).
> >> 
> >> For example, if I input this query:
> >>    q=_val_:"product(15,3)"&fl=*,score
> >> 
> >> For every returned document, I get score = 45.
> >> 
> >> If I change it slightly to add *:* like this:
> >>    q=*:* _val_:"product(15,3)"&fl=*,score
> >> 
> >> I get score = 32.526913.
> >> 
> >> If I try my use case of _val_:"product(qty_ordered,unit_price)", I get
> >> varying scores depending on...well depending on something.
> >> 
> >> I understand this is doing relevance scoring, but it doesn't seem to
> >> tally with the FunctionQuery Wiki
> >> [example at the bottom of the page]:
> >> 
> >>    q=boxname:findbox+_val_:"product(product(x,y),z)"&fl=*,score
> >> ...where score will contain the resultant volume.
> >> 
> >> Is there a trick to getting not a score, but the actual value of
> >> quantity*price (e.g. product(5,2.21) == 11.05)?
> >> 
> >> Many thanks
> > 
> > --
> > Markus Jelsma - CTO - Openindex
> > http://www.linkedin.com/in/markus17
> > 050-8536620 / 06-50258350

-- 
Markus Jelsma - CTO - Openindex
http://www.linkedin.com/in/markus17
050-8536620 / 06-50258350

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