: lets say you filter your query on something and want to know how many : distinct "categories" that your results comprise. : then you can facet on the category field and count the number of facet : values that are returned, right?
if you count the number of facet values returned you are getting a "count of disctinct values" if you just want the list of distinct values in a field (for your whole index) there TermsComponent is the fastest way. if you want the list of distinct values across a set of documents, then facet on that field when doing your query. "select distinct category from books where bookInStock='true'" is analgous to looking at the facet section of... rows=0&q=bookInStock:true&facet=true&facet.field=category -Hoss
