Hi
Is there a way to group groups?
What I want is to count the sum of an item with same size in the same system
So if i have this:
System Size Count
A 20 1
A 20 1
A 30 1
B 10 1
B 20 1
B 10 1
I should end up with this:
System Size Count
A 20 2
A 30 1
B 10 2
B 20 1
I have tried groupbykey but dont know if thats the way to do it. Is it possible to group groups?