hive sql find the latest record

Question

the table is:

create table test (
id string,
name string,
age string,
modified string)

data like this:

id    name   age  modife         


        

Answer 1

You can get the required result without using left outer join like this:

select * from test where (id, modified) in(select id, max(modified) from test group by id)

http://sqlfiddle.com/#!2/bfbd5/42