From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
---|---|
To: | Martijn van Oosterhout <kleptog(at)svana(dot)org> |
Cc: | Kevin HaleBoyes <kcboyes(at)yahoo(dot)com>, pgsql-general(at)postgresql(dot)org |
Subject: | Re: Getting OID after Insert |
Date: | 2001-10-24 17:35:31 |
Message-ID: | 200110241735.f9OHZVG01176@candle.pha.pa.us |
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Lists: | pgsql-general |
> On Tue, Oct 23, 2001 at 02:38:04PM -0400, Kevin HaleBoyes wrote:
> > Is this actually guaranteed to work?
> > What happens if another call to append_test() is made such that
> > the insert takes place in the first call, then the insert takes place
> > in the second call before the select currval().
>
> Yes, it's guarenteed to work. If you examine the documentation for
> currval(), you will get the last value returned by nextval() *in this
> session*. Whatever happens in other sessions is irrelevent.
>
> I think this needs to be highlighted more in the documentation since many
> people miss this very important point.
I have highlighted it more in the FAQ. Yes, many people miss that.
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
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