Edwin, Did you try something from http://yonik.com/solr-facet-functions/ ?
On Wed, Aug 3, 2016 at 6:58 AM, Zheng Lin Edwin Yeo <edwinye...@gmail.com> wrote: > Hi, > > Would like to find out, is it possible for Solr to find a sum of all the > values that are returned in a query? > > For example, when I does a search in which that is a field called "Amount" > with fieldType=float. > Is it possible for Solr to do return the sum of all the "Amount" that are > returned? If the main search query is *:*, then it should return the sum of > all the "Amount" that are present in the entire collection. > > i have tried to use sum(Amount), but this doesn't work, as I believe what > the sum does is to just do the sum of the static amount in each of the > individual record, and not the entire search field records. > > I'm using Solr 6.1.0 > > Regards, > Edwin > -- Sincerely yours Mikhail Khludnev