| From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
|---|---|
| To: | James Robinson <jlrobins(at)socialserve(dot)com> |
| Cc: | bruno(at)wolff(dot)to, pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: History of oids in postgres? |
| Date: | 2004-05-05 17:03:30 |
| Message-ID: | 200405051703.i45H3Uc22406@candle.pha.pa.us |
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| Lists: | pgsql-performance |
James Robinson wrote:
> Bruno et al,
>
> Any self-repsecting lurker would know that oids as row identifiers are
> depreciated in postgres. Can anyone provide a brief history regarding
> the reasoning behind using them as row identifiers in the first place?
> I see a discussion of their use as various primary keys in he system
> catalog in the oid-datatype doc page, but not regarding their history
> as 'user-space' row ids.
They were added at Berkeley and I think are related to the
Object-relational ability of PostgreSQL. I think the newer SQL
standards have a similar capability specified.
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
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