Re: [PATCH] Tab completion for ALTER DATABASE … SET TABLESPACE

On Sat, Sep 22, 2018 at 9:46 AM Andres Freund <andres@anarazel.de> wrote:
> On 2018-09-22 09:15:27 +1200, Thomas Munro wrote:
> > On Sat, Sep 22, 2018 at 8:51 AM Andres Freund <andres@anarazel.de> wrote:
> > > I think there's some argument to be made about the "mental" complexity
> > > of the macros - if we went for them, we'd certainly need to add some
> > > docs about how they work.  One argument for having PP_NARGS (renamed) is
> > > that it doesn't seem useful just here, but in a few other cases as well.
> >
> > It's a nice general facility to have in the tree.  It seems to compile
> > OK on clang, gcc, MSVC (I added this thread as CF entry 20/1798 as a
> > lazy way to see if AppVeyor would build it OK, and it worked fine
> > until conflicting commits landed).  I wonder if xlc, icc, aCC and Sun
> > Studio can grok it.
>
> I think unless $compiler doesn't correctly implement vararg macros, it
> really should just work.  There's nothing but pretty smart use of
> actually pretty plain vararg macros.  If any of the other compilers have
> troubles with that, they'd really not implement vararg macros...

I vote for doing it this way then.  It may turn out to be useful for
efficient SearchSysCache(...), DirectFunctionCall(...) and other
things like that.

-- 
Thomas Munro
http://www.enterprisedb.com