> On Nov 8, 2021, at 11:47, Oleg Serov <oleg@xxxxxxxxxxxx> wrote: > I'm sorry, when I mean users, I mean application end-user (e.g. john@xxxxxxx), not the postgres role. You can also set it as a session-level variable. :-) SET synchronous_commit = 'on'; You could flip it on for the application-level users that require it, only when it is required.