: > I want to find a way to let users to find those documents. One way is to : > make Null an option the users can choose, something like:
: Isn't it facet.missing=on? : http://wiki.apache.org/solr/SimpleFacetParameters#facet.missing that will get you the count, but if you then want to let them click on that value to filter your query you need: fq=-fieldName:[* TO *] -Hoss
