Re: performance tuning in large function / transaction

Hi all,

I will try to assign more memory to shared memory,
say 50M ~ 100M .

I am runing something like that ..

cursor loop 1
cursor loop 2
cursor loop 3
tmp = primary key
delete tmp ....
insert tmp ....
end loop 3
end loop 2
end loop 3

will delete and insert record with same primary key
within a transaction reduce the performance ?

M.T.

--- Stephan Szabo <sszabo(at)megazone23(dot)bigpanda(dot)com>
wrote:
> On Thu, 13 Dec 2001, MindTerm wrote:
>
> > I am writing a function (plpgsql) which equals
> to a
> > single transaction transaction in postgresql ( as
> I
> > known ). So I think that it is not a autocommmit
> mode.
> >
> > I have add following lines in postgresql.conf.
> >
> > postgresql.conf:
> > ====================
> > shared_buffers = 640
> > wal_buffers = 80
>
> It depends on how much memory you have, but even 640
> is pretty
> low (I think that works out to 5M). Probably a few
> thousand
> is better if you've got the ram.
>

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