From: Bruno Wolff III <bruno@wolff.to>
To: Raymond Pau <rpau@yahoo.com>
Cc: pgsql-sql@postgresql.org
Subject: Re: How to make sequence skip existing key in table?
Date: Tue, 18 Feb 2003 07:43:11 -0600
Message-ID: <20030218134311.GB11307@wolff.to> (raw)
In-Reply-To: <20030218100134.91784.qmail@web14204.mail.yahoo.com>
References: <3E51F36A.75F42D3@rodos.fzk.de>
<20030218100134.91784.qmail@web14204.mail.yahoo.com>
On Tue, Feb 18, 2003 at 02:01:34 -0800,
Raymond Pau <rpau@yahoo.com> wrote:
> Hi List,
Please don't start new threads by replying to other messages on the list.
This screws up threading of messages, which is useful for following specific
discussions.
> I am using sequence to generate to a list of unique
> key id that will be used as the primary key for some
> tables.
>
> My question is when the sequence wraps over to the
> minimum value(1), how can I ensure that the next id is
> not in the tables?
My suggestion is to use the bigserial type. This uses bigint as the underlying
type and you are not likely to roll over a 64 bit integer unless you are
wasting a lot of serial values for each one you actually use.
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To: pgsql-sql@postgresql.org
Cc: bruno@wolff.to, rpau@yahoo.com
Subject: Re: How to make sequence skip existing key in table?
In-Reply-To: <20030218134311.GB11307@wolff.to>
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