From: | "A(dot) Kretschmer" <andreas(dot)kretschmer(at)schollglas(dot)com> |
---|---|
To: | pgsql-sql(at)postgresql(dot)org |
Subject: | Re: Create on insert a unique random number |
Date: | 2008-03-18 17:57:40 |
Message-ID: | 20080318175740.GA7657@a-kretschmer.de |
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Lists: | pgsql-sql |
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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