Composite aggregation on a nested object

[sharongur (sharon)]

I was trying to test the composite method.

But i couldnt find documentation that i can do a composite aggregation on a nested document, is it possible?

thats the query with partitioning i want to convert to the composite one

#partionining
GET new_mappings/shahar_relax/_search
{
  "query": {
    "bool": {
      "must": [
        {
          "match_all": {}
        }
      ]
    }
  },
  "aggs": {
    "identifiers": {
      "nested": {
        "path": "identifiers"
      },
      "aggs": {
        "identifierType": {
          "terms": {
            "field": "identifiers.identifierType",
            "size": 10000,
            "include": {
              "partition": 0,
              "num_partitions": 10
            }
          },
          "aggs": {
            "identifierValue": {
              "terms": {
                "field": "identifiers.identifierValue",
                "size": 10000,
                "include": {
                  "partition": 0,
                  "num_partitions": 10
                }
              }
            },
            "identifierValueDistinctCount": {
              "cardinality": {
                "field": "identifiers.identifierValue",
                "precision_threshold": 40000
              }
            }
          }
        }
      }
    }
  }
}