"Joshua D. Drake" <[EMAIL PROTECTED]> writes:
> Ragnar Hafstaš wrote:
>> On Wed, 2005-05-04 at 09:01 -0700, Jeff Eckermann wrote:
>>> If I understand right, oids are globally
>>> unique within your database.
>>
>> I am affraid not
> oids are globally unique within the catalog.
... until the OID generator wraps around, and then they aren't so
unique anymore.
You can enforce uniqueness within a particular table by creating
a unique index on the OID column, but that's about as much as
you can guarantee.
regards, tom lane
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