elasticsearch 聚合函数 max double精度损失bug

测试样例数据
{
  "size" : 0,
  "query" : {
    "bool" : {
      "must" : {
        "bool" : {
          "must" : {
            "bool" : {
              "must" : {
                "match" : {
                  "cankwxzwtm" : {
                    "query" : "丹参",
                    "type" : "phrase"
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "aggregations" : {
    "group_docid" : {
      "terms" : {
        "field" : "docid.raw",
        "size" : 1000
      },
      "aggregations" : {
        "maxid" : {
          "max" : {
            "field" : "longId"
          }
        }
      }
    }
  }
}

　　

测试结果数据
{
  "took": 3,
  "timed_out": false,
  "_shards": {
    "total": 3,
    "successful": 3,
    "failed": 0
  },
  "hits": {
    "total": 24,
    "max_score": 0,
    "hits": []
  },
  "aggregations": {
    "group_docid": {
      "doc_count_error_upper_bound": 0,
      "sum_other_doc_count": 0,
      "buckets": [
        {
          "key": "995922987708317699",
          "doc_count": 4,
          "maxid": {
            "value": 995922987708317700
          }
        },
        {
          "key": "995922987708317703",
          "doc_count": 2,
          "maxid": {
            "value": 995922987708317700
          }
        },
        {
          "key": "995922987708317708",
          "doc_count": 2,
          "maxid": {
            "value": 995922987708317700
          }
        },
        {
          "key": "995922987712512006",
          "doc_count": 2,
          "maxid": {
            "value": 995922987712512000
          }
        },
        {
          "key": "995922987712512012",
          "doc_count": 2,
          "maxid": {
            "value": 995922987712512000
          }
        },
        {
          "key": "995922987704123392",
          "doc_count": 1,
          "maxid": {
            "value": 995922987704123390
          }
        },
        {
          "key": "995922987708317700",
          "doc_count": 1,
          "maxid": {
            "value": 995922987708317700
          }
        },
        {
          "key": "995922987708317701",
          "doc_count": 1,
          "maxid": {
            "value": 995922987708317700
          }
        },
        {
          "key": "995922987708317704",
          "doc_count": 1,
          "maxid": {
            "value": 995922987708317700
          }
        },
        {
          "key": "995922987708317705",
          "doc_count": 1,
          "maxid": {
            "value": 995922987708317700
          }
        },
        {
          "key": "995922987708317706",
          "doc_count": 1,
          "maxid": {
            "value": 995922987708317700
          }
        },
        {
          "key": "995922987708317709",
          "doc_count": 1,
          "maxid": {
            "value": 995922987708317700
          }
        },
        {
          "key": "995922987712512002",
          "doc_count": 1,
          "maxid": {
            "value": 995922987712512000
          }
        },
        {
          "key": "995922987712512007",
          "doc_count": 1,
          "maxid": {
            "value": 995922987712512000
          }
        },
        {
          "key": "995922987712512009",
          "doc_count": 1,
          "maxid": {
            "value": 995922987712512000
          }
        },
        {
          "key": "995922987712512010",
          "doc_count": 1,
          "maxid": {
            "value": 995922987712512000
          }
        },
        {
          "key": "995922987712512011",
          "doc_count": 1,
          "maxid": {
            "value": 995922987712512000
          }
        }
      ]
    }
  }
}

　　总结：maxid.value的值精度已经损失，没去官网深究原因，用terms替换max方法，得出所有id值，手动筛选值。