.
Any help will be appreciated.
2013/3/13 Roth Effy effyr...@gmail.com
I want a n:n join as Cartesian product,but the DataJoinReducerBase looks
like only support equal join.
I want a non-equal join,but I have no idea now.
2013/3/13 Azuryy Yu azury...@gmail.com
you want a n:n join or 1:n join
I want a n:n join as Cartesian product,but the DataJoinReducerBase looks
like only support equal join.
I want a non-equal join,but I have no idea now.
2013/3/13 Azuryy Yu azury...@gmail.com
you want a n:n join or 1:n join?
On Mar 13, 2013 10:51 AM, Roth Effy effyr...@gmail.com wrote:
I want
Hi,everyone,
I want to join the k-v pairs in Reduce(),but how to get the record position?
Now,what I thought is to save the context status,but class Context doesn't
implement a clone construct method.
Any help will be appreciated.
Thank you very much.
it.
On Tue, Mar 12, 2013 at 4:08 PM, Roth Effy effyr...@gmail.com wrote:
Hi,everyone,
I want to join the k-v pairs in Reduce(),but how to get the record
position?
Now,what I thought is to save the context status,but class Context
doesn't implement a clone construct method.
Any help
understand,
can you give a simple example?
On Wed, Mar 13, 2013 at 9:56 AM, Roth Effy effyr...@gmail.com wrote:
sorry，I still can't understand how to use recordreader in the
reduce(),because the input is a RawKeyValueIterator in the class
reducecontext.so,I'm confused.
anyway,thank you.
2013/3/12
