From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | Steve Wolfe <steve(at)iboats(dot)com>, pgsql-general(at)postgresql(dot)org |
Subject: | Re: OID's.... |
Date: | 2001-05-30 21:47:36 |
Message-ID: | 200105302147.f4ULlaH09463@candle.pha.pa.us |
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Lists: | pgsql-general |
> > Also, when the OID's reach the limit of an int4, if I recall correctly,
> > they simply wrap around, and things keep working unless you depend on
> > unique OID's. Is that correct?
>
> That's the theory, anyway. After the wrap, you could see occasional
> failures due to OID conflicts in the system catalogs --- for example, if
> you try to create a table but the assigned OID duplicates some existing
> table's OID, you'd get a can't-insert-duplicate-into-unique-index kind
> of failure. The solution if that happens is just to try again;
> eventually you'll get an OID that doesn't conflict. But the odds of a
> conflict like that should be very low in practice.
Seems we could avoid that by getting another oid and retrying.
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
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