What is the difference between partitioning with key / hash and round robin? - Abinitio

What is the difference between partitioning with key / hash and round robin?

Partitioning by Key / Hash Partition :

- The partitioning technique that is used when the keys are diverse

- Large data skew can exist when the key is present in large volume

- It is apt for parallel data processing

Round Robin Partition :

- This partition technique uniformly distributes the data on every destination data partitions

- When number of records is divisible by number of partitions, then the skew is zero.

- For example – a pack of 52 cards is distributed among 4 players in a round-robin fashion.