Re: Ever increasing OIDs - gonna run out soon?

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От Alex Turner
Тема Re: Ever increasing OIDs - gonna run out soon?
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Msg-id 33c6269f0606121226l7ce838bcy2a288915dab25464@mail.gmail.com
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Ответ на Re: Ever increasing OIDs - gonna run out soon?  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: Ever increasing OIDs - gonna run out soon?  ("Merlin Moncure" <mmoncure@gmail.com>)
Re: Ever increasing OIDs - gonna run out soon?  ("Jim C. Nasby" <jnasby@pervasive.com>)
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Just a quick thought - I know that I don't fully understand tables with oids, and table without oids, is there a link to some more information about why you need oids, or why you don't that I could reference as I'm a bit lost on the subject of oids

Alex.

On 6/12/06, Tom Lane <tgl@sss.pgh.pa.us> wrote:
Martijn van Oosterhout <kleptog@svana.org> writes:
> Well, you have to be using a lot of OIDs for this to be an issue. At
> your stated rate of 1.5 million OIDs per day it will take just under
> eight years before you wraparound. That's a lot of OIDs and most
> databases don't get anywhere near that many, which is why it's not a
> big deal for most people...

It should also be pointed out that OID wraparound is not a fatal
condition.  Pre-8.1 you might get occasional query failures due to
trying to insert duplicate OIDs, but that's about it.

> This gives you a list of tables that use OIDs. Maybe it can help you
> track down the problem.

Look at pg_class.relhasoids --- easier, and more reliable.

                        regards, tom lane

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