时间字符串的聚合

PUT my_index

{

  "mappings": {

    "my_type": {

      "properties": {

        "date": {

          "type": "date" 

        }

      }

    }

  }

}



PUT my_index/my_type/1

{ "date": "2015-01-01" } 



PUT my_index/my_type/2

{ "date": "2015-01-01T12:10:30Z" } 



PUT my_index/my_type/3

{ "date": 1420070400001 } 



GET my_index/_search

{

  "sort": { "date": "asc"}