Re: Pagination - 1 or 2 queries?

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От scott.marlowe
Тема Re: Pagination - 1 or 2 queries?
Дата
Msg-id Pine.LNX.4.33.0309051407380.31114-100000@css120.ihs.com
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Ответ на Pagination - 1 or 2 queries?  (CSN <cool_screen_name90001@yahoo.com>)
Список pgsql-general
On Fri, 5 Sep 2003, CSN wrote:

>
> --- "scott.marlowe" <scott.marlowe@ihs.com> wrote:
> > begin;
> > declare bubba as cursor for select * from table
> > order by fieldname;
> > move forward 100 in bubba;
> > fetch 5 from bubba;
> > rollback;
> >
> > Then you get the same kind of effect, but only 5
> > rows have to be retrieved
> > from the database to the client, and pg_fetch_array
> > will now iterate over
> > those 5 rows only, and then run dry, so to speak.
>
> Actually, with this method would you be able to get
> the count of all rows that could be returned (not just
> the 5)?

Yes, you can use "fetch absolute count from cursorname" should work.


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