Some thoughts on this. On Thu, Nov 2, 2017 at 4:48 PM, Tom Lane <t...@sss.pgh.pa.us> wrote:
> Nico Williams <n...@cryptonector.com> writes: > > With access controls, GUCs could become schema variables, and settings > > from postgresql.conf could move into the database itself (which I think > > would be nice). > > People re-propose some variant of that every so often, but it never works, > because it ignores the fact that some of the GUCs' values are needed > before you can access system catalogs at all, or in places where relying > on system catalog access would be a bad idea. > I think the basic point one should get here is that no matter the unification, you still have some things in the db and some things out. I would rather look at how the GUC could be improved on a functional/use case level before we look at the question of a technical solution. One major use case today would be restricting how high various users can set something like work_mem or the like. As it stands, there isn't really a way to control this with any granularity. So some of the proposals regarding granting access to a session variable would be very handy in granting access to a GUC variable. > > Sure, we could have two completely different configuration mechanisms > so that some of the variables could be "inside the database", but that > doesn't seem like a net improvement to me. The point of the Grand Unified > Configuration mechanism was to be unified, after all. > +1 > > I'm on board with having a totally different mechanism for session > variables. The fact that people have been abusing GUC to store > user-defined variables doesn't make it a good way to do that. > What about having a more clunky syntax as: SET VARIABLE foo='bar'; Perhaps one can have a short form of: SET VAR foo = 'bar'; vs SET foo = 'bar'; -- GUC > > regards, tom lane > > > -- > Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-hackers > -- Best Regards, Chris Travers Database Administrator Tel: +49 162 9037 210 | Skype: einhverfr | www.adjust.com Saarbrücker Straße 37a, 10405 Berlin
