hive 函数学习

NAME PRICE
---- -----
AAA  1.59
AAA  2.00
AAA  0.75
BBB  3.48
BBB  2.19
BBB  0.99
BBB  2.50

I would like to get target table:

RANK NAME PRICE
---- ---- -----
1    AAA  0.75
2    AAA  1.59
3    AAA  2.00
1    BBB  0.99
2    BBB  2.19
3    BBB  2.50
4    BBB  3.48

Normally I would use ROW_NUMBER() OVER function, so in Apache Hive it would be:

select
  row_number() over (partition by NAME order by PRICE) as RANK,
  NAME,
  PRICE
from
  MY_TABLE
;

hive 函数学习

原文：http://www.cnblogs.com/charlie-badegg/p/4067257.html