Total/Subtotal options for dates

marcel_luthi

When building a table, it'd be good to have the option to subtotal date fields by something other than COUNT. Basic options like MIN or MAX, would help answering key business questions like when the last interaction took place, or when we first interacted, while still displaying in the table the full list of interactions by actor, client, etc (this just to name an example of when it could be used)

These options are currently showing in the GUI, but they do not work, so enabling them for date fields would be awesome.