From: Bruno Wolff III <bruno@wolff.to>
To: Burr, Colin <CBurr@herald.com>
Cc: 'pgsql-sql@postgresql.org' <pgsql-sql@postgresql.org>
Subject: Re: Bug: Sequence generator insert
Date: Fri, 28 Nov 2003 15:38:28 -0600
Message-ID: <20031128213828.GA24904@wolff.to> (raw)
In-Reply-To: <7D8D2AE3E5A9DB4C8D78DE0F950ABB510BDC3F56@miaxch01.herald.com>
References: <7D8D2AE3E5A9DB4C8D78DE0F950ABB510BDC3F56@miaxch01.herald.com>
On Tue, Nov 25, 2003 at 18:37:41 -0500,
"Burr, Colin" <CBurr@herald.com> wrote:
>
> However, even though the new record failed to be inserted into the table,
> the sequence generator was still updated.
>
> The sequence generator should only be updated if the record is successfully
> inserted into the table, and should not be updated if the insert fails.
That isn't how sequences work. If you need a sequence of numbers without
gaps then you need to use something else. Note that the something else
will need to have a way to let only one transaction at a time update
the counter which may be a performance problem.
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To: pgsql-sql@postgresql.org
Cc: bruno@wolff.to, CBurr@herald.com
Subject: Re: Bug: Sequence generator insert
In-Reply-To: <20031128213828.GA24904@wolff.to>
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