懵逼，同事前几天问我一个udf 问题 ，还是 Python 格式的

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以前所有的Hive 函数都是 Java  或是 Scala 语言写的 ，Python 没有弄个 ，看到Python 格式的 code  懵逼了 ，非常懵逼

今天在看 Python 正则表达式偶遇 Python udf 的一个 case  ，不过 Python 484  not support  udaf or udtf  ??  I have know idea now .fuck

Here is the case   :

there is one   table named  mytable  and one column named your_name  (last_name first_name )

and we want to split this column into two from one 

Init:

mytable :

your_name

huchihaihe   fuck   

Finally :

mytable :

your_lastname   your_firstname

huchihaihe          fuck   

#!/usr/bin/python3

import sys

for line in sys.stdin:
    line=line.strip()
    lname ,fname=line.split(' ') # space 
    l_name=lname.lower()
    print('\t'.join([str(l_name),fname]))

#this it

the code represented the udf function  to split a data into 2

Oky I admitted I fucked for the above print function  why  you need this  ,sorry  I  do not know  ,but it needed 

Okay  let's skip the question  and see what we can do using the script

select your_name ,transform(your_name) using 'the above script path and name.py' as (l_name,fname) from mytable

Here we will get the result we wantted  funny  heng

I totally fucked