hive 的ARRAY,MAP,STRUCT使用

1.創建表

CREATE TABLE employees (

name STRING,

salary FLOAT,

subordinates ARRAY<STRING>,

deductions MAP<STRING, FLOAT>,

address STRUCT<street:STRING, city:STRING, state:STRING, zip:INT>

)

PARTITIONED BY(country STRING, state STRING)

ROW FORMAT DELIMITED 

FIELDS TERMINATED BY ','

COLLECTION ITEMS TERMINATED BY '|'

MAP KEYS TERMINATED BY ':';

2.導入數據

load data local inpath '/data/employees_1'
overwrite into table employees partition(country = 'CH',state = 'BeiJin');
 
load data local inpath '/data/employees_2'
overwrite into table employees partition(country = 'US',state = 'NY');

3.查詢所有數據

4.查詢array中的數據

5.查詢MAP中的數據

6.查詢

有問題歡迎指教，歡迎學習交流