Re: How to _not_ save startup options in postmaster.opts?

"David G. Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com> writes:
>> Alas, those config values are remembered in postmaster.opts. But I don't
>> want that.

> I don’t know where this file is even documented ATM but my understanding is
> it just shows you the values used during the last startup.

It does more, per the pg_ctl man page:

postmaster.opts

If this file exists in the data directory, pg_ctl (in restart
mode) will pass the contents of the file as options to postgres,
unless overridden by the -o option. The contents of this file are
also displayed in status mode.

It seems totally reasonable for "pg_ctl restart" to re-apply those
switches. If you don't want that, don't use "restart", but stop
and start.

Or you could just remove the file.

regards, tom lane