- Min(X,...) and Max(X,...) functions take an arbitrary number of arguments and return the minimum and maximum per row, respectively. - Currently, our implementation is good for single value fields in the input. We are calling Spark's 'least' and 'greatest' method. - Our implementation fails or produces wrong results for the following inputs: - The only input argument is a mvfield -> Need to call 'array_min' or 'array_max' instead of 'least' or 'greatest'. - There are several mvfields as input -> Create array of input arrays -> Flatten -> call array_min / array_max - In Splunk it is also possible to provide a mixture of mvfields and svfields in the input. - Solution: We need to know the data types of the input arguments.
