fullscale/elastic.js — pull request #78 by phjardas (2014-10-17 10:55:50+00:00)
Title: Support for Field Value Factor Function (fixes #77)

Added a new function query `FieldValueFactorFunction`. Fixes issue #77.

see http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/query-dsl-function-score-query.html#_field_value_factor

this feature was added in ElasticSearch 1.2.0