Re: WIP: extensible enums

On Mon, Aug 23, 2010 at 11:49:41AM -0400, Alvaro Herrera wrote:
> Excerpts from Andrew Dunstan's message of lun ago 23 05:35:09 -0400 2010:
>
> > To add a label at the end of the list, do:
> >
> > ALTER TYPE myenum ADD 'newlabel';
> >
> > To add a label somewhere else, do:
> >
> > ALTER TYPE myenum ADD 'newlabel' BEFORE 'existinglabel';
> >
> > or
> >
> > ALTER TYPE myenum ADD 'newlabel' AFTER 'existinglabel';
>
> What do you need AFTER for? Seems to me that BEFORE should be enough.
> (You already have the unadorned syntax for adding an item after the last
> one, which is the corner case that BEFORE alone doesn't cover).

Making things easier for the users is a good thing all by itself :)

+1 for including both BEFORE and AFTER. Would it be worth it to allow
something like FIRST and LAST?

ALTER TYPE myenum ADD 'newlabel' FIRST;

ALTER TYPE myenum ADD 'newlabel' LAST;

Cheers,
David.
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