anchor.diff:  [source,bash]
   ----
   curl -X POST -H 'Content-type:application/json' --data-binary '{
  -  "delete-field" : { "name":"sell-by" }
  +  "delete-field" : { "name":"sell_by" }
   }' http://localhost:8983/solr/gettingstarted/schema
   ----
   ====
  
positive.code: ----
  curl -X POST -H 'Content-type:application/json' --data-binary '{
    "replace-field":{
       "name":"sell-by",
       "type":"date",
       "stored":false }
  }' http://localhost:8983/api/cores/gettingstarted/schema
  
negative.code: 
  All of the properties available when defining a field with manual `schema.xml` edits can be passed via the API. These request attributes are described in detail in the section <<defining-fields.adoc#defining-fields,Defining Fields>>.
  
  For example, to define a new stored field named "sell_by", of type "pdate", you would POST the following request:
  
  [.dynamic-tabs]
  --
  