Re: OID Perfomance - Object-Relational databases

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Josh Berkus <josh(at)agliodbs(dot)com>
Cc: pgsql-sql(at)postgresql(dot)org, jeff(at)pgsql(dot)com
Subject: Re: OID Perfomance - Object-Relational databases
Date: 2000-10-09 19:19:03
Message-ID: 200010091919.PAA11482@candle.pha.pa.us
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> Bruce, Tom, etc.:
>
> > > This is what I mean. Does the DB engine only recycle
> > > *unused* OIDs (that is, does it check for teh continued
> > > existance of a tuple with OID 198401)? If that's the
> > > method, then there isn't really a problem even if I do
> > use
> > > OIDs as a primary index. None of my OIDs still in use
> > will
> > > be touched.
> >
> >
> > No, it uses all oids, and can create duplicates.
>
> Does this mean that Tom's "Wraparound Ragnarok" is the
> accurate scenario?

Yes.

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