On: The PostgreSQL community debates ALTER SYSTEM

[sbuttgereit]

I'm not sure I understand the requirement here.

Something different than (below)?

https://www.postgresql.org/docs/current/app-createdb.html

https://www.postgresql.org/docs/current/app-createuser.html

(others https://www.postgresql.org/docs/current/reference-client.htm...)

I never use these myself, but it seems there are ways to get there.