Hi Oussama, If you have only a few distinct, unchanging values in the field that you group upon, you could implement a FilterQuery (query parameter "fq") and add it to the query, allowing all valid values, but not an empty field. For example:
fq=my_grouping_string_field:( value_a OR value_b OR value_c OR value_d ) If you use SOLR 4.x, you should be able to group upon an integer field, allowing a range filter: (I still work with 3.6 which can only group on string fields, so i didnt test this one) fq=my_grouping_integer_field:[1 TO *] -- Johannes Rodenwald ----- Ursprüngliche Mail ----- Von: "Oussama Jilal" <jilal.ouss...@gmail.com> An: solr-user@lucene.apache.org Gesendet: Freitag, 22. Februar 2013 12:32:13 Betreff: Solr Grouping and empty fields Hi, I need to group some results in solr based on a field, but I don't want documents having that field empty to be grouped together, does anyone know how to achieve that ? -- Oussama Jilal
