Thanks for your reply Mikhail, I tried like this : "{!parent which=object_type_s:contact score=total v={!func}TTC_i}" in a filter query, the same in the sort parameter, I also tried to put this query "{!parent which=object_type_s:contact score=total}TTC_i" into the q parameter, but no results... I had a look to the dismax query parser, but I'm not sure it is a way to solve my problem.
So what's wrong with my function query ? Did I explicite the child level correctly ? Best JB -- Sent from: http://lucene.472066.n3.nabble.com/Solr-User-f472068.html