1.Hive数据类型
数值型：tinyint、smallint、int、bigint
字符型：varchar、char、string
时间型：date、timestamp
其他类型：boolean
复杂类型：arrays(下标是从0开始)、map(key,value)、structs
userlist map(int,string) userlist['1']取出value
user structs<name:string,age:int> user.name user.age
2.实例
（1）创建表
CREATE TABLE if not exists `jihetable`(
`id` string,
`area` array<string>,
`province` map<int,string>,
`city` struct<name:string,city:string,type:int>)
ROW FORMAT DELIMITED
FIELDS TERMINATED BY '\t'
COLLECTION ITEMS TERMINATED BY ','
MAP KEYS TERMINATED BY ':'
LINES TERMINATED BY '\n'
STORED AS textfile;（2）数据
A 华东,华南,华北 1:北京,2:天津,2:天津 南京,A23,2
B 华东,西南,华北 3:北京,2:天津,2:天津 福州,A23,2
C 华东,华南,中原 5:宁夏,2:河南,2:天津 上海,A1,2（3）加载数据load
load data local inpath '/opt/datas/jihetest' into table jihetable;（4）查看
select * from jihetable;
结果：
+---------------+-------------------+---------------------+-------------------------------------------+--+
| jihetable.id | jihetable.area | jihetable.province | jihetable.city |
+---------------+-------------------+---------------------+-------------------------------------------+--+
| A | ["华东，华南，华北"] | {} | {"name":"南京，A23","city":"3","type":null} |
| B | ["华东，语文，属性"] | {} | {"name":"上海，A23","city":"3","type":null} |
| A | ["华东","华南","华北"] | {1:"北京",2:"天津"} | {"name":"南京","city":"A23","type":2} |
| B | ["华东","西南","华北"] | {3:"北京",2:"天津"} | {"name":"福州","city":"A23","type":2} |
| C | ["华东","华南","中原"] | {5:"宁夏",2:"河南"} | {"name":"上海","city":"A1","type":2} |
+---------------+-------------------+---------------------+-------------------------------------------+--+