最小值嵌套字段

Question

我正在寻找＆＃34;价格＆＃34;的汇总查询嵌套字段中的字段。

每个文档的映射是

"Item": {
  "id": {
    "type": "integer"
  }
  "products":{
    "properties": {
       "price": {
        "type": "double"
      },
      "name": {
        "type": "string"
      }
   }
}

我们说我有3份文件，

Item1:
{
  "id:1,
  "products":[
      {"name":"aa", "price":100.0}
      {"name":"bb", "price":200.0}
      {"name":"cc", "price":300.0}
  ]
}

Item2:
{
  "id:2,
  "products":[
      {"name":"dd", "price":400.0}
      {"name":"ee", "price":300.0}
  ]
}

Item3:
{
  "id:3,
  "products":[
      {"name":"ff", "price":150.0}
      {"name":"gg", "price":50.0}
      {"name":"ff", "price":250.0}
  ]
}

我需要一个范围聚合查询，它汇总了每个项目的最低价格产品。

"aggregations" : {
     "nested_aggs" : {
        "nested" : {
        "path" : "products"
      },
     "aggregations" : {
          "price_range" : {
             "range" : {
                "field" : "products.price",
                "ranges" : [
                   {
                    "to" : 200.0
                   },
                   {
                    "from" : 200.0,
                    "to" : 400.0
                   }
                 ],
                 "keyed" : false
                }
              }
            }
        }
    }





Expected output: 0-200: 2 (Item1 & item3)
               200-400: 1 (Item2),

我无法指定聚合过滤条件来考虑最低价格的嵌套对象

非常感谢任何帮助。