anchor.diff:  --------------------------------------------------
   PUT _data_frame/transforms/ecommerce_transform
   {
  -  "source": "kibana_sample_data_ecommerce",
  -  "dest": "kibana_sample_data_ecommerce_transform",
  +  "source": {
  +    "index": "kibana_sample_data_ecommerce",
  +    "query": {
  +      "term": {
  +        "geoip.continent_name": {
  +          "value": "Asia"
  +        }
  +      }
  +    }
  +  },
  +  "dest": {
  +    "index": "kibana_sample_data_ecommerce_transform"
  +  },
     "pivot": {
       "group_by": {
         "customer_id": {
  
positive.code: 
  ==== Request Body
  
  `source`:: The source index or index pattern.
  
  `dest`:: The destination index.
  
  `pivot`:: Defines the pivot function `group by` fields and the aggregation to
  reduce the data.
  
negative.code:   "acknowledged" : true
  }
  ----
  // NOTCONSOLE
  