Although I am logged in as Administrator user in pgAdmin4, and with an admin role inside my database, the edition fields are always disabled, as in:
So I can't make modifications with the interface.
Is there some knob to turn on somewhere to allow that?
Got a response on the support mailing list, that I post here for reference
Turns out this is wanted behavior: Postgresql does not offer a way to modify those fields on a constraint (see doc), you have to drop/re-create the constraint. So the UI reflects that.