Hello there,

While looking at the features of Dataset, it seem to provide an alternative
way towards udf and udaf. Any documentation or sample code snippet to write
this would be helpful in rewriting existing UDFs into Dataset mapping step.
Also, while extracting a value into Dataset using as[U] method, how could I
specify a custom encoder/translation to case class (where I don't have the
same column-name mapping or same data-type mapping)?

Please advice,
Muthu

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