How to aggregate over dynamic fields in elasticsearch?

Question

I am trying to aggregate over dynamic fields (different for different documents) via elasticsearch. Documents are like following:

[{
   \"name\": \"galaxy no         


        

Answer 1

Not sure if this is what you mean, but this is fairly simple with basic aggregation functionality. Beware I did not include a mapping so with type of multiple words you are getting double results.

POST /product/atype
{
   "name": "galaxy note",
   "price": 123,
   "attributes": {
      "type": "phone",
      "weight": "140gm"
   }
}

POST /product/atype
{
   "name": "shirt",
   "price": 123,
   "attributes": {
      "type": "clothing",
      "size": "m"
   }
}

GET /product/_search?search_type=count
{
  "aggs": {
    "byType": {
      "terms": {
        "field": "attributes.type",
        "size": 10
      }
    }
  }
}