4-常规数据字段类型解读

索引Mapping概念

数据

perl 复制代码

{
    "end_station_id": "6756.05",
    "member_casual": "member",
    "@timestamp": "2022-12-11T05:36:16.645Z",
    "end_lat": "40.762009",
    "start_station_name": "W 21 St & 6 Ave",
    "start_lat": "40.74173969",
    "ended_at": "2022-01-22 14:53:18",
    "start_station_id": "6140.05",
    "start_lng": "-73.99415556",
    "rideable_type": "classic_bike",
    "started_at": "2022-01-22 14:28:32",
    "tags": [
        "citibike",
        "tripdata"
    ],
    "ride_id": "D1FCEF55EB4A807F",
    "end_station_name": "W 44 St & 11 Ave",
    "end_lng": "-73.996975"
}

创建索引Mapping

静态创建索引Mapping

创建索引时，显示创建索引Mapping

bash 复制代码

PUT citibike-202201
{
  "settings": {},
  "mappings": {
    "properties": {
      "ride_id": {
        "type": "text"
      },
      "@timestamp": {
        "type": "date"
      },
      "member_casual": {
        "type": "keyword"
      }
    }
  },
  "aliases": {
    "citibike": {}
  }
}

GET /citibike-202201/_mapping

动态创建索引Mapping

动态创建索引方式，填充数据，自动更新索引mapping

静态+动态创建Mapping

· 部分静态创建 · 部分自动创建，自动更新mapping

json 复制代码

PUT citibike-202201
{
  "settings": {},
  "mappings": {
    "properties": {
      "ride_id": {
        "type": "text"
      }
    }
  },
  "aliases": {
    "citibike": {}
  }
}