I hope this request will be easy to implement.
One of the handy features I really like about Alteryx's standard Join tool is the way you can select and rename fields right in the join tool. It would be great if this feature could be added to the IN-DB join tool. Whenever I perform a join in DB, I ALWAYS have to add a select tool after it since you always want to de-select one of the redundant fields that the join was based on i.e. (ID and R_ID).
Behind the scenes, I'm sure the select feature would still have to be handled as if it were a separate select tool, but it would just be convenient if the user interface could combine those two features.