Re: Planner create a slow plan without an available index

On Tue, Aug 30, 2005 at 10:39:57PM -0500, Bruno Wolff III wrote:
> On Wed, Aug 31, 2005 at 01:27:30 +0200,
>   Ben-Nes Yonatan <da@canaan.co.il> wrote:
> >
> > Now again im probably just paranoid but when I'm starting a transaction
> > and in it im making more then 4 billions diffrent queries
> > (select,insert,update,truncate...) and then im closing it, its counted
> > as only one transaction right? (should I duck to avoid the manual? ;))
>
> I believe there is a limit on the number of queries in a transaction of
> 2 or 4 billion (though this may be just in functions).
>
> Ignoring subtransactions, all these queries count as just one transaction.
> I am not sure how subtransactions are counted.

If the subtransaction writes at least a tuple, it counts as another
transaction.  Else it doesn't count.

--
Alvaro Herrera <alvherre[]alvh.no-ip.org>      Architect, www.EnterpriseDB.com
"I'm always right, but sometimes I'm more right than other times."
                                                  (Linus Torvalds)