To implement a custom untyped user-defined aggregation function, the user has to extend the which class

Question 1

To implement a custom untyped user-defined aggregation function, the user has to extend the which class

(i)None of the options

(ii)UserDefinedAggregateFunction

(iii)UDFAggregateFunction

(iv)UserDefinedFunction

Question 2

UserDefinedAggregateFunction

To implement a custom untyped user-defined aggregation function, the user has to extend the which class

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1 Answer