语法: map (key1, value1, key2, value2, …) 说明：根据输入的key和value对构建map类型
hive> Create table mapTable as select map(‘100‘,‘tom‘,‘200‘,‘mary‘) as t from tableName;
hive> Create table mapTable as select map(‘100‘,‘tom‘,‘200‘,‘mary‘) as
t from
tableName;
hive> describe mapTable;
t map<string ,string>
hive> select t from tableName;
hive> select
{"100":"tom","200":"mary"}
语法: struct(val1, val2, val3, …) 说明：根据输入的参数构建结构体struct类型
hive> create table struct_table as select struct(‘tom‘,‘mary‘,‘tim‘) as t from tableName;
hive> create table struct_table as select struct(‘tom‘,‘mary‘,‘tim‘) as
hive> describe struct_table;
t struct<col1:string ,col2:string,col3:string>
{"col1":"tom","col2":"mary","col3":"tim"}
语法: array(val1, val2, …) 说明：根据输入的参数构建数组array类型
hive> create table arr_table as select array("tom","mary","tim") as t from tableName;
hive> create table arr_table as select array("tom","mary","tim") as
hive> describe tableName;
t array<string>
["tom","mary","tim"]
hive函数之~复合类型构建操作
原文：https://www.cnblogs.com/lojun/p/13248499.html
