Have you looked at the RANK function? https://pig.apache.org/docs/r0.11.0/basic.html#rank
On Fri, Apr 24, 2015 at 5:15 AM, 李运田 <cumt...@163.com> wrote: > I have a big data about 10T ,I want to add column number to every column > from 1 to COUNT(my data),,I use two functions in > http://stackoverflow.com/questions/9288578/how-can-i-add-row-numbers-for-rows-in-pig-or-hive > and http://www.aiuxian.com/article/p-139530.html > but I always get many files. every file column number is from 0 to > ...... perhaps there are many reduces. I dont know how to add column > number from 1 to COUNT(my data)? > thank you ,give me some advice or some one can give me some advice > websites? > thank you very much. > >
