Sorry for the basic question q=*:*&fq=-sku:2471834&fq=FiltroDispo:1&fq=has_image:1&rows=100&fl=descCat3,IDCat3,ranking2&group=true&group.field=IDCat3&group.sort=ranking2+desc&group.ngroups=true
returns some groups with no results. I'm using solr 4.8.0, the collection has 3 shards Am I missing some parameters? <lst name="grouped"> <lst name="IDCat3"> <int name="matches">297254</int> <int name="ngroups">49</int> <arr name="groups"> <lst> <int name="groupValue">0</int><result name="doclist" numFound="0" start="0"/></lst> ... <lst><int name="groupValue">12043</int><result name="doclist" numFound="2" start="0"><doc><int name="IDCat3">12043</int><str name="descCat3">SSD</str><int name="ranking2">498</int></doc></result></lst>