验证一个mapping下字段缺少或者超过

结论: 没有什么不可以.

1.如果数据字段不在mapping里,则动态会更新mapping.

2.数据字段数也可以小于mapping里字段数

• 创建一个mapping

DELETE /lib2

PUT /lib2

{

  "settings": {

    "number_of_shards": 2,

    "number_of_replicas": 1

  },

  "mappings": {

    "user": {

      "properties":{

        "name":{"type":"keyword"},

        "age":{"type":"integer"},

        "address":{"type":"text"},

        "birth":{"type":"date"}

      }

    }

  }

}

GET /lib2/_mapping

PUT /lib2/user/1

{

  "name":"maotai1",

  "age":21,

  "address":"shan xi xian",

  "birth":"2018-02-06T06:22:59.00Z"

}

• 少两个字段

PUT /lib2/user/2

{

  "name":"maotai2",

  "age":22

}

• 多一个favor字段

PUT /lib2/user/3

{

  "name":"maotai3",

  "age":23,

  "address":"shan xi xian",

  "birth":"2018-02-06T06:22:59.00Z",

  "favor":["book","sleep"]

}

• 查询

GET /lib2/user/_search

{

  "query": {

    "match_all": {}

  }

}

以下几种情况都是ok的

mapping字段数 == 数据字段数

mapping字段数 >= 数据字段数

mapping字段数 <= 数据字段数