Dear all, First, thank you so much for your interest in this patch. I didn't think I would have so many answers.
I agree that the feature I'm suggesting could be done with a few tricks. I meant to simplify the life of the user by providing a simple new feature. (Also, I might have trust issues with DNS due to several past production disasters.) My question is very simple: Do you oppose having this feature in Postgres? In other words, should I stop working on this? Have a nice day, Lætitia