There really isn't any meaning to cogrouping with one field on one
relation and two fields on another. Given our definition of tuple,
there will never be any tuples that match. I believe Santhosh has
changed this to be a syntax error.
Alan.
pi song wrote:
Normally we do COGroup like this:-
X = COGroup A By $0, B By $0 ;
This first column of the output will be data atom.
But if we do:-
X = COGroup A By $0, B By $0, $1 ;
What is the the first column then? I assume the B grouping will be wrapped
to tuple and treated as atom. Am I right?
Pi
