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On Sat, Apr 26, 2008 at 6:02 AM, Tom Lane wrote:
> "Brendan Jurd" writes:
> > Has anyone had a close look at how hard it would be allow just the
> > "add to the end" capability?
>
> The problem is you can't guarantee anything about the ordering of the
> new value relative to the old ones. The OID it's assigned might be
> after them, or before them if the OID counter has wrapped around,
> or (with much smaller probability) between two existing ones.
>
I see. So to add a value on to the end with guaranteed ordering, you
would have to rebuild the enum from scratch anyway.
Then there's no technical difference at all in implementing "add to
the end" and "add/remove".
Thanks for the answer.
Cheers,
BJ
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