Обсуждение: checking currval

I cannot view the currval because it is not set in the session yet. Is there a way to set it without having to increment the value?
Thanks
Jodi

select last_value from your_sequence;

Jodi Kanter wrote:

> I cannot view the currval because it is not set in the session yet. Is
> there a way to set it without having to increment the value?
> Thanks
> Jodi

I tried that and it did not work. It won't be a problem in the code since it appears that we are always doing a nextval prior to currval, but I was just wondering about how to do it while in a psql session.

Weiping He wrote:

select last_value from your_sequence;

Jodi Kanter wrote:

I cannot view the currval because it is not set in the session yet. Is there a way to set it without having to increment the value?
Thanks
Jodi

---------------------------(end of broadcast)---------------------------
TIP 7: don't forget to increase your free space map settings

On Wed, Jun 18, 2003 at 09:55:51 -0400,
  Jodi Kanter <jkanter@virginia.edu> wrote:
> I cannot view the currval because it is not set in the session yet. Is
> there a way to set it without having to increment the value?

What value do you expect to see and why do you want to see it?

What flavor Postgresql are you running?  That works on both my 7.2.x boxes
and my 7.3 boxes.  If you're running anything older than 7.2.x, you might
wanna upgrade before asking for help, since folks tend to assume you're
running at least 7.2 around here.

Note that this IS NOT TRANSACTION safe.  If two processes do this at the
same time and operate on that number, you can have a race condition that
will cause you problems.

Use the nextval,setval,currval functions for transaction safe sequence
work.

On Wed, 18 Jun 2003, Jodi Kanter wrote:

> I tried that and it did not work. It won't be a problem in the code
> since it appears that we are always doing a nextval prior to currval,
> but I was just wondering about how to do it while in a psql session.
>
> Weiping He wrote:
>
> > select last_value from your_sequence;
> >
> > Jodi Kanter wrote:
> >
> >> I cannot view the currval because it is not set in the session yet.
> >> Is there a way to set it without having to increment the value?
> >> Thanks
> >> Jodi
> >
> >
> >
> >
> >
> > ---------------------------(end of broadcast)---------------------------
> > TIP 7: don't forget to increase your free space map settings
>
>
>