elasticsearch 按日期按最新时间戳对日志进行分组

请容忍我，因为我对弹性搜索非常陌生。下面是进入弹性搜索的数据管道的模式。最底部的“updated_at”字段是“timestamp”。每隔两个小时，该数据的一条新记录将通过管道传输到ES中，并带有“updated_at”时间戳。我想写一个DSL查询，只按每天的最大（最新）时间戳提取每条记录，但我不确定如何或从哪里开始。我试着使用aggs，但没有走得太远

  {
    "_index" : "analyticspeoplecountbycompany",
    "_type" : "analytics_PeopleCountByCompany",
    "_id" : "2hmEZW4Bxxxxx",
    "_score" : 1.0,
    "_source" : {
      "data" : {
        "result" : {
          "result" : [
            {
              "EntityName" : "",
              "Type" : "analytics_PeopleCountByCompany",
              "Value" : null,
              "Template" : {
                "Company" : "XXX",
                "Claimed" : "2",
                "Not Claimed" : "49",
                "Type" : "analytics_PeopleCountByCompany"
              }
            },          
            {
              "EntityName" : "",
              "Type" : "analytics_PeopleCountByCompany",
              "Value" : null,
              "Template" : {
                "Company" : "YYY",
                "Claimed" : "75",
                "Not Claimed" : "108",
                "Type" : "analytics_PeopleCountByCompany"
              }
            },
            {
              "EntityName" : "",
              "Type" : "analytics_PeopleCountByCompany",
              "Value" : null,
              "Template" : {
                "Company" : "ZZZ",
                "Claimed" : "34",
                "Not Claimed" : "92",
                "Type" : "analytics_PeopleCountByCompany"
              }
            },
            {
              "EntityName" : "",
              "Type" : "analytics_PeopleCountByCompany",
              "Value" : null,
              "Template" : {
                "Company" : "AAA",
                "Claimed" : "97",
                "Not Claimed" : "260",
                "Type" : "analytics_PeopleCountByCompany"
              }              
            {
              "EntityName" : "",
              "Type" : "analytics_PeopleCountByCompany",
              "Value" : null,
              "Template" : {
                "Company" : "BBB",
                "Claimed" : "92",
                "Not Claimed" : "269",
                "Type" : "analytics_PeopleCountByCompany"
              }
            }
          ]
        },
        "type" : "analytics_PeopleCountByCompany",
        "description" : "Count of People by Company",
        "updated_at" : "2019-11-13T16:06:47.704Z"