From: A. Kretschmer <andreas.kretschmer@schollglas.com>
To: pgsql-sql@postgresql.org
Subject: Re: Create on insert a unique random number
Date: Tue, 18 Mar 2008 18:57:40 +0100
Message-ID: <20080318175740.GA7657@a-kretschmer.de> (raw)
In-Reply-To: <B10E6810AC2A2F4EA7550D072CDE8760CDDC33@SAB-FENWICK.sab.uiuc.edu>
References: <B10E6810AC2A2F4EA7550D072CDE8760CDDC32@SAB-FENWICK.sab.uiuc.edu>
<268179.51357.qm@web54301.mail.re2.yahoo.com>
<20080318165138.GA6578@a-kretschmer.de>
<B10E6810AC2A2F4EA7550D072CDE8760CDDC33@SAB-FENWICK.sab.uiuc.edu>
am Tue, dem 18.03.2008, um 12:03:31 -0500 mailte Campbell, Lance folgendes:
> I created the following table:
>
> create table xyz (
> n serial,
> abc character varying,
> constraint n_pkey primary key (n));
>
> Each time I do an insert:
>
> insert into xyz(abc) values('adf6');
>
> The field n is not random but is sequential. Is there something I
> should do to make the serial number random?
Why do you mean to need a random value? But you can use something like
md5(nextval('your_sequence')) as default. But i can't see an advantage.
>
>
> -----Original Message-----
Please, no top-posting. I'm reading from top to bottom.
Andreas
--
Andreas Kretschmer
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To: pgsql-sql@postgresql.org
Cc: andreas.kretschmer@schollglas.com
Subject: Re: Create on insert a unique random number
In-Reply-To: <20080318175740.GA7657@a-kretschmer.de>
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