How can I empty content of a field at Solr (I use Solr 4.5.1 as SolrCloud) via Solrj? I mean if I have that document at my index:
field1: "abc" field2: "def" field3: "ghi" and if I want to empty the content of field2. I want to have: field1: "abc" field2: "" field3: "ghi"
