> ApplySetting(InvalidOid, InvalidOid, relsetting, PGC_S_$SOMETHING);
>
> in postinit.c, and have some SQL command to modify this setting.
>
> The only thing you couldn't handle that way are SIGHUP settings, but the
> often-cited use cases work_mem, logging, etc. would work.
>
> There would also be the advantage that pg_dumpall would save these settings.
I think this is a great idea.
One caveat: we really, really, really need a system view which allows
DBAs to easily review settings defined for specific users and databases.
Right now, it requires significant pg_catalog hacking expertise to pull
out user-specific settings.
--
Josh Berkus
PostgreSQL Experts Inc.
http://pgexperts.com