# Pastebin sB34jn3w
As with joins between RDDs, joining with nonunique keys will result in the cross product (so if the left table has R1 and R2 with key1 and the right table has R3 and R5 with key1 you will get (R1, R3), (R1, R5), (R2, R3), (R2, R5)) in the output.