Fallback DynamicDataFrame.resolveChoice behaviour

[FIAV1]

Hi, I'd like to make a proposal for a useful option for DynamicDataFrame.resolveChoice(): in case available choices are unknown until runtime, it would be great if resolveChoice() had an option that automatically find the "biggest" type among available ones and use it to cast all the others, and this should happen for each field that has a ChoiceType(), e.g. from this:

root
|-- field1: choice
|    |-- int: int
|    |-- long: long
|-- field2: choice
|    |-- float: float
|    |-- decimal: decimal

To this:

root
|-- field1: long
|-- field2: decimal

Of course this should happen if data types are compatible, so in cases like this:

root
|-- field1: choice
|    |-- array: array
|    |-- map: map

The job should error out.