请教es一个多field聚合查询的问题

比如我有这样的一组数据：

[ 

{isp:电信, province:广东, uv: 100}, 

{isp:电信, province:广东, uv: 200}, 

{isp:电信, province:湖北, uv: 300}, 

{isp:电信, province:湖北, uv: 100}, 

{isp:联通, province:广东, uv: 100}, 

{isp:联通, province:湖北, uv: 10} ]

现在我想先聚合这两个field:isp和province，同时对聚合后的uv求和，然后对uv排序，最后的结果如下：

[ 

{isp:电信, province:湖北, uv: 400}, 

{isp:电信, province:广东, uv: 300}, 

{isp:联通, province:广东, uv: 100}, 

{isp:联通, province:湖北, uv: 10} 

]

 
请教一下，es查询该怎么写呢？谢谢大家了

es中源数据如下，已省略了部分不重要的字段:
 

"hits": [

      {

        "_index": "play-2017.01.01",

        "_source": {

          "isp": "电信",

          "province": "广东",

          "uv": 706,      

          "@timestamp": "2017-01-01T02:35:00.000Z"

        }

      },

      {

        "_index": "play-2017.01.01",

        "_source": {

          "isp": "电信",

          "province": "广东",

          "uv": 919,

          "@timestamp": "2017-01-01T12:40:00.000Z"

        }

      },

      {

        "_index": "play-2017.01.01",

        "_source": {

          "isp": "联通",

          "province": "山东",

          "uv": 1220,

          "@timestamp": "2017-01-01T10:45:00.000Z"

        }

      },

      {

        "_index": "play-2017.01.01",

        "_source": {

          "isp": "电信",

          "province": "广东",

          "uv": 1017,

          "@timestamp": "2017-01-01T13:45:00.000Z"

        }

      },

      {

        "_index": "play-2017.01.01",

        "_source": {

          "isp": "电信",

          "province": "广东",

          "uv": 1032,

          "@timestamp": "2017-01-01T13:40:00.000Z"

        }

      },

      {

        "_index": "play-2017.01.01",

        "_source": {

          "isp": "电信",

          "province": "浙江",

          "uv": 849,

          "@timestamp": "2017-01-01T13:40:00.000Z"

        }

      },

      {

        "_index": "play-2017.01.01",

        "_score": null,

        "_source": {

          "isp": "联通",

          "province": "山东",

          "uv": 849,

          "@timestamp": "2017-01-01T07:30:00.000Z"

        }

      },

      {

        "_index": "play-2017.01.01",

        "_source": {

          "isp": "联通",

          "province": "河南",

          "uv": 1633,

          "@timestamp": "2017-01-01T12:05:00.000Z"

        }

      },

      {

        "_index": "play-2017.01.01",

        "_source": {

          "isp": "联通",

          "province": "山东",

          "uv": 882,

          "@timestamp": "2017-01-01T03:20:00.000Z"

        }

      },

      {

        "_index": "play-2017.01.01",

        "_source": {

          "isp": "联通",

          "province": "山东",

          "uv": 908,

          "@timestamp": "2017-01-01T04:25:00.000Z"

        }

      }

    ]