How to multiply top-terms-aggregation by document value?

[luizguilhermefr (Luiz Guilherme Fonseca Rosa)]

Hi, I want to top term values like this:

{
   "products":[
      {
         "identifier":1,
         "name":"Foo",
         "quantity":2
      },
      {
         "identifier":2,
         "name":"Bar",
         "quantity":3
      }
   ]
}

But instead of considering simply the times each record occurs, I want to query the count times quantity field, like considering the identifier 2 product to 3 instead of one in the above example.

How could I do it?

My current query is:

{
   "size":0,
   "aggs":{
      "products":{
         "nested":{
            "path":"products"
         },
         "aggs":{
            "top-terms-aggregation":{
               "terms":{
                  "field":"products.identifier",
                  "size":10
               }
            }
         }
      }
   }
}