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Numeric and boolean fields have doc values enabled by default as of elasticsearch 2.0. This commit removes support for uninverted/in-memory fielddata, as well as numeric fields encoded in binary doc values which was the way that elasticsearch stored doc values in a Lucene index before the 1.4 release. As a consequence, you will only be able to sort and aggregate on numeric and boolean fields in Elasticsearch 3.0 if doc values have not been switched off.