Apache Spark, Analytics, Cryptography, Computer Science, Data Engineering.
columnar expression is as follows. scala> hashed.show() +-----+-------+----+----------------+ | name|emotion|uuid| hash| +-----+-------+----+----------------+ |happy| smile| 1|aGFwcHktc21pbGU=| |angry| frown| 2|YW5ncnktZnJvd24=| +-----+-------+----+----------------+ Nice. Right. Next. We can look