https://blog.csdn.net、/u010376788/article/details/50532166 https://blog.csdn.net/u010376788/article/details/50532166
https://blog.csdn.net/wangzhun0129/article/details/17071367#
add jar /xxx/xxx.jar
create temporary function hello as ‘com.mycompany.bda.UdfHello’; 创建临时函数
CREATE TEMPORARY FUNCTION hello AS ‘edu.wzm.hive.HelloUDF’;
https://blog.csdn.net/weixin_39469127/article/details/89739285
https://blog.csdn.net/qq_32002253/article/details/87952227 https://blog.csdn.net/ifenggege/article/details/107461121 https://github.com/gingerredjade/flink-userportrait-main