anchor.diff:           }
         }
      }
  -}'
  ---------------------------------------------------
  +}
  +--------------------------------------------------
  +// CONSOLE
   
   <1> The fields to compute and return field stats for.
   <2> The set index constraints. Note that index constrains can be defined for fields that aren't defined in the `fields` option.
  
positive.code: 
  [source,js]
  --------------------------------------------------
  curl -XPOST "http://localhost:9200/_field_stats?level=indices" -d '{
     "fields" : ["answer_count"] <1>
     "index_constraints" : { <2>
        "creation_date" : { <3>
           "min_value" : { <4>
  
negative.code: 
  [source,js]
  --------------------------------------------------
  GET /_field_stats?fields=rating,user,project,message
  --------------------------------------------------
  // CONSOLE
  
  Response:
  
  