重温hive的一些记录和想法

• 特殊数据类型

　　ARRAY，MAP，STRUCT

CREATE TABLE employee(
　　name string,
　　salary double,
　　subor array<string>,
　　dedu map<string, double>,
　　address struct<street:string, city:string, state:string, zip:int>
)
ROW FORMAT DELIMITED
FIELDS TREMINATED BY '\u001'
COLLECTION ITEMS TERMINATED BY ','
MAP KEYS TERMINATED BY ':'
LINES TERMINATED BY '\n'
STORED BY TEXTFILE;

• 写时模式和读时模式

标签：TERMINATED,u001,DELIMITEDFIELDS,MAP,重温,数据类型,想法,hive,模式
来源： https://www.cnblogs.com/baran/p/15585605.html