[Feature request] Add a feature to dataset
Do you have an example of what you would like to do? (you can just add a field in the output of the unction you give to map and this will add this field in the output table)
Is there a straightforward way to add a field to the arrow_dataset, prior to performing map?
[Feature request] Add a feature to dataset 
 Is there a straightforward way to add a field to the arrow_dataset, prior to performing map? 
 Do you have an example of what you would like to do? (you can just add a field in the output of the unction you give to map and this will add this field in the output table)