I am working on a problem where I need to join multiple datasets. The
problem is explained below.
Given N number of datasets, having M relations in between them, i want to
merge them into one dataset where relations could be 1-many or 1-1 and for
connectivity, it is essential that we have atleast N-1 relations so M >N-1
Kindly let me know how to solve this issue using Map Reduce
Thanks in advance