Bob Pawley <[EMAIL PROTECTED]> writes:
> I am using the numbers to identify devices.
> If a device is deleted or replaced with another type of device I want the 
> numbering to still be sequential.

It sounds to me like you oughtn't be storing these numbers in the
database at all.  You just want to attach them at display time --- they
are certainly utterly meaningless as keys if they can change at any
moment.

                        regards, tom lane

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