| From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
|---|---|
| To: | Joe Conway <mail(at)joeconway(dot)com> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Rod Taylor <rbt(at)rbt(dot)ca>, PostgreSQL Patches <pgsql-patches(at)postgresql(dot)org> |
| Subject: | Re: Cascaded Column Drop |
| Date: | 2002-09-27 04:16:54 |
| Message-ID: | 200209270416.g8R4Gs904749@candle.pha.pa.us |
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| Lists: | pgsql-hackers pgsql-patches |
Joe Conway wrote:
> Bruce Momjian wrote:
> > Tom Lane wrote:
> >>What I was actually wondering about after reading Tim's report was
> >>whether we could support zero-column tables, which would eliminate the
> >>need for the special case altogether. I have not looked to see how
> >>extensive are the places that assume tuples have > 0 columns ...
> >
> > Zero-width tables do sound interesting. Is it somehow non-relational?
> >
>
> I can see a zero column table as a transition state maybe, but what else would
> they be useful for?
It's the /dev/null of the SQL world, but I'm not sure what that means. :-)
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
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