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Pig Null and bag clarification

Contributor

What is an empty bag, empty tuple, and Null?


How to represent empty bag, empty tuple, and Null?


which operations will generate empty tuple, empty bag?


I have this confusion because I do not have clarity when to use datafu.pig.bags.NullToEmptyBag() and EmptyBagToNullFields functions?

Can someone give some example for my understanding


1 REPLY 1

Contributor

Any Input on my clarifications