Markus, As far as I know, functions are executed on a per-document/field basis. That is, I don't think any of them aggregate numeric field values from a result set.
Otis -- Sematext is hiring -- http://sematext.com/about/jobs.html?mls Lucene, Solr, Nutch, Katta, Hadoop, HBase, UIMA, NLP, NER, IR ----- Original Message ---- > From: Markus Jelsma - Buyways B.V. <mar...@buyways.nl> > To: solr-user@lucene.apache.org > Sent: Tuesday, August 4, 2009 4:37:09 AM > Subject: Functions in search result > > Solr people, > > > Can i retrieve results from a function query? For instance, i have a > schema in which all documents have a size in bytes field. For each > query, i also need to sum of the bytes field for the returned documents. > I know i can use SUM as part of a function query but i cannot figure it > out if it even works for me. > > I prefer doing it with Solr and have the sum in the in the response > header or somewhere similar instead of iterating over the entire > resultset myself. Also, iterating over the resultset would not really > work for me either since i also need paging through start= and rows= to > limit the show documents but still keeping the sum of bytes the same. > > > Regards, > > - > Markus Jelsma Buyways B.V. Tel. 050-3118123 > Technisch Architect Friesestraatweg 215c Fax. 050-3118124 > http://www.buyways.nl 9743 AD Groningen KvK 01074105