Re: Re: Re: is PG able to handle a >500 GB Database?
| От | Brett W. McCoy |
|---|---|
| Тема | Re: Re: Re: is PG able to handle a >500 GB Database? |
| Дата | |
| Msg-id | Pine.LNX.4.30.0101201135460.28271-100000@chapelperilous.net обсуждение исходный текст |
| Ответ на | Re: Re: Re: is PG able to handle a >500 GB Database? (Tom Lane <tgl@sss.pgh.pa.us>) |
| Ответы |
Re: Re: Re: is PG able to handle a >500 GB Database?
|
| Список | pgsql-general |
On Sat, 20 Jan 2001, Tom Lane wrote:
> > currval returns error unless nextval has been called at least once in the
> > session.
>
> > I use <seq>.last_value
>
> > Perhaps I'm fooling myself
>
> Yes, you are, unless you never have more than one client attached to
> your database. last_value will return whatever value was last assigned
> by any backend, therefore you might not get the value that was inserted
> into your tuple, but someone else's.
In that case you would call next_val *before* you insert and use that
value in the INSERT statement.
-- Brett
http://www.chapelperilous.net/~bmccoy/
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