anchor.diff:  [float]
   === Return values
   
  -Three types of values can be requested: _term information_, _term statistics_
  +Three types of values can be requested: _term information_, _term statistics_,
   and _field statistics_. By default, all term information and field
   statistics are returned for all fields but no term statistics.
   
  
positive.code: [float]
  ==== Example: Returning stored term vectors
  
  First, we create an index that stores term vectors, payloads etc. :
  
  [source,js]
  --------------------------------------------------
  
negative.code: 
  or by adding the requested fields in the request body (see
  example below). Fields can also be specified with wildcards
  in a similar way to the <<query-dsl-multi-match-query,multi match query>>
  
  [WARNING]
  Note that the usage of `/_termvector` is deprecated in 2.0, and replaced by `/_termvectors`.
  