Hive之数据类型Array,Struct,Map的混用

JSON表示法：
employee_Kelvin = {

     "name": "John Doe",

     "salary": 100000.0,

     "subordinates": ["Mary Smith", "Todd Jones"],

     "deductions": {

                      "Federal Taxes": .2,

                      "State Taxes": .05,

                      "Insurance": .1

                   },

     "address": {

                      "street": "1 Michigan Ave.",

                      "city": "Chicago",

                      "state": "IL",

                      "zip": 60600

                }

}



CREATE TABLE if not exists employees (

        name STRING comment 'your name',

        salary FLOAT comment 'your job salary',

        subordinates ARRAY<STRING> comment 'some people who order to you',

        deductions MAP<STRING, FLOAT> comment 'the related tax from your salary',

        address STRUCT<street:STRING, city:STRING, state:STRING, zip:INT> comment 'your home address'

)

ROW FORMAT DELIMITED

FIELDS TERMINATED BY '\001'

COLLECTION ITEMS TERMINATED BY '\002'

MAP KEYS TERMINATED BY '\003'

LINES TERMINATED BY '\n'

STORED AS TEXTFILE;

参考：http://blog.csdn.net/yfkiss/article/details/7842014