Re: Closing some 8.4 open items

From: David Fetter <david(at)fetter(dot)org>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Bruce Momjian <bruce(at)momjian(dot)us>, Josh Berkus <josh(at)agliodbs(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Grzegorz Jaskiewicz <gj(at)pointblue(dot)com(dot)pl>, Hitoshi Harada <umi(dot)tanuki(at)gmail(dot)com>, Andrew Gierth <andrew(at)tao11(dot)riddles(dot)org(dot)uk>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Closing some 8.4 open items
Date: 2009-04-11 23:17:56
Message-ID: 20090411231756.GA29564@fetter.org
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On Sat, Apr 11, 2009 at 01:43:35PM -0700, David Fetter wrote:
> On Sat, Apr 11, 2009 at 04:30:02PM -0400, Tom Lane wrote:
> > Bruce Momjian <bruce(at)momjian(dot)us> writes:
> > > I assume the 'type' column will identify triggers, i/o functions
> > > (cstring), window functions, and maybe aggregates too; this solves
> > > several problems at once.
> >
> > +1 for all except i/o functions. The cstring check for that was always
> > flat-out wrong, and getting it right is far more expensive than it's
> > worth --- AFAICS you'd have to grovel through all entries in pg_type.
>
> I'll leave it out :)
>
> > But aggregates are only relevant if we decide to start showing
> > aggregates in \df --- is there consensus for that?
>
> I'd throw 'em in.

It occurs to me that we ought to allow for a possibility that a
function can be more than one special case. For example, sum() is
both an aggregate and a windowing function, while rank() is only a
windowing function.

Working on a patch that allows a concise description of both.

Cheers,
David.
--
David Fetter <david(at)fetter(dot)org> http://fetter.org/
Phone: +1 415 235 3778 AIM: dfetter666 Yahoo!: dfetter
Skype: davidfetter XMPP: david(dot)fetter(at)gmail(dot)com

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