aggregation template

{
  "query": {
    "bool": {
      "must": [
        {"range": {
          "start": {
            "gte": 1506009600000
          }
        }
        }
      ]
    }
  },
  "aggs": {
    "stat_over_time": {
      "date_histogram": {
        "field": "start",
        "interval": "week",
        "offset": "-8h"
      
      },
      "aggs": {
        "terms_over_name": {
          "terms": {
            "field": "service",
            "size": 1,
            "order": {
              "sum_over_count": "desc"
            }
          },
          "aggs": {
            "sum_over_count": {
              "sum": {
                "field": "times"
              }
            }
          }
        }
      }
    }
  }
}