anchor.diff:    ...
     "aggregations": {
       "resellers": {
  -      "doc_count": 0,
  +      "doc_count": 2,
         "min_price": {
           "value": 350
         }
  
positive.code: 
  [source,console]
  --------------------------------------------------
  PUT /index
  {
      "mappings": {
          "properties" : {
              "resellers" : { <1>
                  "type" : "nested",
                  "properties" : {
                      "name" : { "type" : "text" },
                      "price" : { "type" : "double" }
                  }
              }
  
negative.code:     }
  }
  --------------------------------------------------
  // TEST[s/GET \/products\/_search/GET \/products\/_search\?filter_path=aggregations/]
  // TEST[continued]
  
  As you can see above, the nested aggregation requires the `path` of the nested documents within the top level documents.
  Then one can define any type of aggregation over these nested documents.
  