Re: Skipping numbers in a sequence.

From: GH <grasshacker(at)over-yonder(dot)net>
To:
Cc: pgsql-novice(at)postgresql(dot)org
Subject: Re: Skipping numbers in a sequence.
Date: 2000-11-24 10:16:52
Message-ID: 20001124041652.J32817@over-yonder.net
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On Fri, Nov 24, 2000 at 04:07:25AM -0600, some SMTP stream spewed forth:
> On Fri, Nov 24, 2000 at 09:59:17PM +1300, some SMTP stream spewed forth:
> > GH wrote:
> > > Hello all.
> > > It's like this. ;-)
> > > I have a table with a column that has a default nextval('sequence').
> > > The sequence is a standard increment 1 cycle sequence.
> > > What happens when
> > > the sequence wraps after inserting the
> > > 2-million-and-whatever-th row

*snippity snip snip*

> >
> > I usually leave the sequence to error at 4 billion, and if that hits me
> > before the heat-death of the universe I will sort it out then :-)

Hell, do you suppose I could just set the column to float8 and let the
sequence run for the next several years? I would be happy if the sequence
buys me 3 or more years. ;-)
(Just get me to Morrocco, baby. ;-))

There would not be any problems with a sequence as high as max(float8), would
there?

> I was thinking about something like that.
> This table is used in such a way that each row corresponds to one item
> in an order. So, I suppose I need to guesstimate the likely-hood that
> a company would sell (or have-shopped) n items.
>
> I just have that icky feeling that some day the sequence will roll over
> and hell with come after my ass. ;-))
>

Thanks.

gh

>
>
> >
> > Cheers,
> > Andrew.
> > --
> > _____________________________________________________________________
> > Andrew McMillan, e-mail: Andrew(at)cat-it(dot)co(dot)nz
> > Catalyst IT Ltd, PO Box 10-225, Level 22, 105 The Terrace, Wellington
> > Me: +64 (21) 635 694, Fax: +64 (4) 499 5596, Office: +64 (4) 499 2267

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