Mpdreamz/NEST — pull request #239 by CMXLabs (2013-04-24 12:09:12+00:00)
Title: Add facts to DateEntry

If a facets date histogram query includes value_field or value_script then the additional json fields are included in the response. These are de-serialised as the facts: Total, TotalCount, Min, Max and Mean. They are nullable so do not impact current consumers of DateEntry.

http://www.elasticsearch.org/guide/reference/api/search/facets/date-histogram-facet/