See http://wiki.apache.org/solr/FieldCollapsing
On Wed, Sep 30, 2009 at 4:41 PM, Michael <solrco...@gmail.com> wrote: > If I index a bunch of email documents, is there a way to say"show me all > email documents, but only one per To: email address" > so that if there are a total of 10 distinct To: fields in the corpus, I get > back 10 email documents? > > I'm aware of http://wiki.apache.org/solr/Deduplication but I want to > retain > the ability to search across all of my email documents most of the time, > and > only occasionally search for the distinct ones. > > Essentially I want to do a > SELECT DISTINCT to_field FROM documents > where a normal search is a > SELECT * FROM documents > > Thanks for any pointers. >
