Peter Eisentraut wrote:
> On tis, 2010-09-21 at 18:31 -0400, Bruce Momjian wrote:
> > Also, doesn't some SQL standard require oids, so we should have a way
> > to enable them by default for all tables?
>
> >From some DB2 example:
>
> CREATE TYPE BusinessUnit_t AS
> (Name VARCHAR(20),
> Headcount INT);
>
> CREATE TABLE BusinessUnit OF BusinessUnit_t
> (REF IS oid USER GENERATED);
>
> The DB2 documentation consistently refers to this column as "oid", but
> there is no requirement to name it that way.
>
> The SQL standard also contains this sentence:
>
> Let OID be the name of the self-referencing column of S.
>
> which refers to the thing defined in the example above, but "OID" is
> just a placeholder here.
>
> I think there was a mention of OIDs in the "SQL3" draft that eventually
> became SQL99, but that's long past now. Current standards don't have
> it, except in the, perhaps more generalized, form above.
Thanks for those details. I did remember it appearing at one point,
which I guess was SQL3.
-- Bruce Momjian <bruce@momjian.us> http://momjian.us EnterpriseDB
http://enterprisedb.com
+ It's impossible for everything to be true. +