Re: Change size of varchar(20) field

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От Martijn van Oosterhout
Тема Re: Change size of varchar(20) field
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Msg-id 20020205112946.A26418@svana.org
обсуждение исходный текст
Ответ на Re: Change size of varchar(20) field  (Elaine Lindelef <eel@cognitivity.com>)
Список pgsql-general
On Mon, Feb 04, 2002 at 11:08:57AM -0800, Elaine Lindelef wrote:
> Has anyone discovered any workaround to the lack of a full ALTER
> TABLE that preserves the OID for each row? I am finding that for
> insurance I have to assign each table an SERIAL of my own to create
> an autoincremented ID that I can control - because using OID as a key
> requires me to update the key throughout the database if I have to
> drop the table.

Probably a good idea anyway since OIDs are not guarenteed to be unique. At
least by using a SERIAL you will notice when the it wraps around. I think in
7.2 the OID column will be optional.
--
Martijn van Oosterhout <kleptog@svana.org>
http://svana.org/kleptog/
> Terrorists can only take my life. Only my government can take my freedom.

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