On Tue, 2 Aug 2011 21:49:22 +0800 (CST), "Daniel,Wu"
wrote:
> we usually use something like values.next() to loop every rows in a
> specific group, but I didn't see any code to loop the list, at least it
> need to get the first row in the list, which is something like
> values.get().
> or will
we usually use something like values.next() to loop every rows in a specific
group, but I didn't see any code to loop the list, at least it need to get the
first row in the list, which is something like
values.get().
or will NullWritable.get() get the first row in the group?
static class M
