Aggregation in Elastic

aggs.sh

curl -X POST -H 'Content-Type: application/json' http://localhost:9200/data-obj/data-obj/_search?size=0&pretty -d '
    {
      "aggs": {
        "range_agg": {
          "range": {
            "field": "age",
            "ranges": [
              {"to": 20},
              {"from": 20, "to": 25},
              {"from": 25, "to": 30},
              {"from": 30}
            ]
          },
          "aggs": {
            "job": {
              "terms": {"field": "job"},
              "aggs": {
                "damage": {
                  "terms": {"field": "damage"},
                  "aggs": {
                    "iv": {
                      "avg": {"field": "iv"}
                    },
                    "blood": {
                      "avg": {"field": "blood"}
                    }
                  }
                }
              }
            }
          }
        }
      }
    }
    '