I don't understand why the server starts that process if I'm not using replication of any kind.
The server starts it with the default configuration of version 13.
I think that it consumes resources that I do not need because, as I have commented, I will not use replication of any kind.
It starts the process because at any time someone can execute a “create subscription” command. If no one does so the amount of time spent confirming the subscriptions table is empty is trivial.
So, yes, it consumes resources. A minimal amount, likely not enough to spend time figuring out how to avoid and risking a change to the basic operational mode of the subsystem.
