我有一个索引用户。我正在LOCATION_ID和_source上筛选用户，该用户由PHONE_NUMBER和USER_ID组成，一些文档没有PHONE_NUMBER数据。因此，它只返回USER_ID响应。如果文档中缺少字段PHONE_NUMBER，是否有任何方法可以为字段PHONE_NUMBER获取一些默认值或预定义值（传入查询，就像我们对缺少字段的计数一样）。
Map：

{
  "PHONE_NUMBER": {
    "type": "long",
    "store": true
  },
  "USER_ID": {
    "type": "long",
    "store": true
  },
  "LOCATION_ID": {
    "type": "long",
    "store": true
  }
}

质询：

{
  "_source":[
     "PHONE_NUMBER",
     "USER_ID"
  ],
  "query":{
     "bool":{
        "must":[
           {
              "terms":{
                 "LOCATION_ID":[
                    "5001"
                 ]
              }
           }
        ],
        "must_not":[
           
        ]
     }
  },
  "from":0,
  "size":2000
}

回复：

{
  "took":0,
  "timed_out":false,
  "_shards":{
     "total":1,
     "successful":1,
     "skipped":0,
     "failed":0
  },
  "hits":{
     "total":{
        "value":4,
        "relation":"eq"
     },
     "max_score":2.0,
     "hits":[
        {
           "_index":"user",
           "_id":"39788",
           "_score":2.0,
           "_source":{
              "USER_ID":39788
           }
        },
        {
           "_index":"user",
           "_id":"30784",
           "_score":2.0,
           "_source":{
              "USER_ID":30784,
              "PHONE_NUMBER":1234567890
           }
        },
        {
           "_index":"user",
           "_id":"36373",
           "_score":2.0,
           "_source":{
              "USER_ID":36373,
              "PHONE_NUMBER":1234567893
           }
        },
        {
           "_index":"user",
           "_id":"36327",
           "_score":2.0,
           "_source":{
              "USER_PROJECT_USER_ID":36327
           }
        }
     ]
  }
}

在上面的响应中，第一个最后一个文档中缺少PHONE_NUMBER。如果缺少字段，我希望返回一些默认值或预定义值（在查询中设置，就像我们在计算缺少字段时所做的那样）。
预期React：

{
  "took":0,
  "timed_out":false,
  "_shards":{
     "total":1,
     "successful":1,
     "skipped":0,
     "failed":0
  },
  "hits":{
     "total":{
        "value":4,
        "relation":"eq"
     },
     "max_score":2.0,
     "hits":[
        {
           "_index":"user",
           "_id":"39788",
           "_score":2.0,
           "_source":{
              "USER_ID":39788,
              "PHONE_NUMBER":9876543210.     <- Default or Predifined value (set in query, like we do in count for missing field)
           }
        },
        {
           "_index":"user",
           "_id":"30784",
           "_score":2.0,
           "_source":{
              "USER_ID":30784,
              "PHONE_NUMBER":1234567890
           }
        },
        {
           "_index":"user",
           "_id":"36373",
           "_score":2.0,
           "_source":{
              "USER_ID":36373,
              "PHONE_NUMBER":1234567893
           }
        },
        {
           "_index":"user",
           "_id":"36327",
           "_score":2.0,
           "_source":{
              "USER_PROJECT_USER_ID":36327,
              "PHONE_NUMBER":9876543210      <- Default or Predifined value (set in query, like we do in count for missing field)
           }
        }
     ]
  }
}

任何帮助都将不胜感激。