Hive 创建表：解析 json 文件时解析错误缺少“>”

Question

我在创建 hive 表时遇到以下异常。谁能指出我的错误？ 示例输入：{"user":{"userlocation":"Bolton, UK","id":14141159,"name":"Chris Beckett","screenname":"ChrisBeckett","geoenabled":true}," tweetmessage":"vCOps 人 - 高级版 == 5 个 VM？我知道 Std 有 UI 和分析 VM，但其余的使用什么？Hyperic 等？#vmware #vcops","createddate":"2013-06-20T12: 08:46","地理位置":null}

enter code here

   CREATE EXTERNAL TABLE IF NOT EXISTS twitter(
   users map<string,string,string,string,string>,
   message string,
    createddate string,
    geolocation string
  )
    ROW FORMAT SERDE 'org.apache.hadoop.hive.contrib.serde2.JsonSerde'
  LOCATION ' /user/root/hadoop_tests/sample_twitter_data.txt';

    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.apache.hadoop.util.RunJar.main(RunJar.java:212)

FAILED: ParseException line 2:23 missing > at ',' near 'string' in column type 第 2:30 行无法识别列类型中 ',' 'string' ',' 附近的输入

Answer 1

也许你应该使用 Struct 而不是 Map.Below：

CREATE EXTERNAL TABLE IF NOT EXISTS twitter(
   users  struct<userlocation:string,id:string,name:string,screenname:string,geoenabled:string>,
   message string,
   createddate string,
   geolocation string
)
ROW FORMAT SERDE 'org.apache.hadoop.hive.contrib.serde2.JsonSerde'
LOCATION '/user/root/hadoop_tests/';