Re: Wacky OID idea

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Christopher Kings-Lynne <chriskl(at)familyhealth(dot)com(dot)au>
Cc: Neil Conway <nconway(at)klamath(dot)dyndns(dot)org>, Alvaro Herrera <alvherre(at)atentus(dot)com>, Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Wacky OID idea
Date: 2002-08-14 04:57:48
Message-ID: 200208140457.g7E4vm729806@candle.pha.pa.us
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Added to TODO:

o Add ALTER TABLE tab SET WITHOUT OIDS

---------------------------------------------------------------------------

Christopher Kings-Lynne wrote:
> > I don't think it would be easy to do this without rewriting the table,
> > as Alvaro suggested. And if you're going to give this DROP COLUMN
> > variant totally different behavior from any other form of DROP COLUMN,
> > ISTM that it doesn't belong with DROP COLUMN.
>
> Especially if we start saving the 4 bytes that a NULL oid takes up in a
> table tuple on disk.
>
> Perhaps:
>
> ALTER TABLE tab SET WITHOUT OIDS;
>
> I think the reverse operation would really be impossible...? Unless we run
> through the entire table and insert an oid for each row from the oid
> counter?
>
> > That said, being able to remove the OIDs from a table would be fairly
> > useful, IMHO.
>
> Hell yeah.
>
> By the way - I'm not saying I'll be implementing this any time soon!
>
> Chris
>
>
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