我要对两个字段进行计算，然后对计算出来对新字段进行聚合

POST log/doc/_search

{

  "size": 10,

  "query": {

    "function_score": {

      "query": {

        "match_all": {}

      },

      "script_score": {

        "script": {

          "source": "doc.size.value / doc.request_time.value"

        }

      }

    }

  },

  "sort": [

    {

      "_score": {

        "order": "desc"

      }

    }

  ]

}

GET log/_search

{

  "size" : 10,

  "_source" : false,

  "stored_fields" : "_none_",

  "sort" : [

    {

      "_script" : {

        "script" : {

          "source" : "doc['size'].value /doc ['request_time'].value ",

          "lang" : "painless"

        },

        "type" : "number",

        "order" : "desc"

      }

    }

  ]

}

POST /_xpack/sql?format=txt

{

  "query":"select (size/request_time) as speed from log order by speed desc",

  "fetch_size": 10

}