you can use the StatsComponent http://wiki.apache.org/solr/StatsComponent
with stats=true&stats.price=category&stats.facet=category and pull the sum fields from the resulting stats facets. Johannes 2012/2/5 Paul Kapla <paul.ka...@gmail.com>: > Hi everyone, > I'm pretty new to solr and I'm not sure if this can even be done. Is there > a way to sum a specific field per each item in a facet. For example, you > have an ecommerce site that has the following documents: > > id,category,name,price > 1,books,'solr book', $10.00 > 2,books,'lucene in action', $12.00 > 3.video, 'cool video', $20.00 > > so instead of getting (when faceting on category) > books(2) > video(1) > > I'd like to get: > books ($22) > video ($20) > > Is this something that can be even done? Any feedback would be much > appreciated. -- Dipl.-Ing.(FH) Johannes Goll 211 Curry Ford Lane Gaithersburg, Maryland 20878 USA