Re: More outdated examples

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Peter Eisentraut <peter_e(at)gmx(dot)net>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, PostgreSQL Development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: More outdated examples
Date: 2003-03-20 16:17:34
Message-ID: 200303201617.h2KGHYN07165@candle.pha.pa.us
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-hackers


OK, readded. Thanks.

---------------------------------------------------------------------------

Peter Eisentraut wrote:
> The specific case that Tom complained about wasn't even in the latest
> documentation sources anymore. I think the patch should be reverted.
>
> Bruce Momjian writes:
>
> >
> > The following applied patch removes the section Tom thought wasn't
> > needed anymore.
> >
> > ---------------------------------------------------------------------------
> >
> > Tom Lane wrote:
> > > Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
> > > > I can find no suitable replacement for this example. Can anyone else?
> > >
> > > > Peter Eisentraut wrote:
> > > >> This example in User's Guide section 7.2 doesn't work anymore at all:
> > > >>
> > > >> tgl=> select @ text '-4.5' as "abs";
> > >
> > > Both of the examples in this section have been obsoleted by our recent
> > > elimination of a lot of implicit casts. This one would still work if
> > > text-to-float8 were an implicit cast, but it's not anymore. Also,
> > > though the second one still acts as described, the reason given for it
> > > in the text is wrong: the system is not unable to choose among multiple
> > > alternatives. Rather, it finds *no* alternatives, again because the
> > > text-to-various-int-types casts are no longer implicit.
> > >
> > > The closest similar cases that I can find for the first example are not
> > > good replacements because they are also slated for destruction :-(.
> > > Basically, I see us moving away from the preferred-type mechanism, and
> > > perhaps eliminating it entirely soon.
> > >
> > > I'd just remove the whole of Example 7.3, I think. The mechanisms are
> > > still there, for now, but they are not invoked in any standard cases.
> > >
> > > regards, tom lane
> > >
> >
> >
>
> --
> Peter Eisentraut peter_e(at)gmx(dot)net
>
>
>

--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
+ If your life is a hard drive, | 13 Roberts Road
+ Christ can be your backup. | Newtown Square, Pennsylvania 19073

In response to

Browse pgsql-hackers by date

  From Date Subject
Next Message Peter Eisentraut 2003-03-20 16:19:00 Re: pgsql-server/ oc/src/sgml/manage-ag.sgml oc/sr ...
Previous Message Bruce Momjian 2003-03-20 16:13:16 Re: [INTERFACES] Roadmap for FE/BE protocol redesign