Thanks Tom.
That did it.
Theirs always something to learn, when i read you.
Best regards
Hakan
> -----Original Message-----
> From: Tom Lane [mailto:tgl@sss.pgh.pa.us]
> Sent: Friday, February 02, 2007 4:04 PM
> To: Hakan Kocaman
> Cc: pgsql-general@postgresql.org
> Subject: Re: [GENERAL] Functions, composite types and Notice
>
>
> "Hakan Kocaman" <Hakan.Kocaman@digame.de> writes:
> >> Try this way instead:
> >> select * from public.check_notice(2,'hello');
>
> > so i call the function now like this (obfuscated):
> > select
> > public.check_notice(t1.a,t1.b,t2.c)
> > from
> > public.tab1 t1,
> > public.tab2 t2
>
> > I'm not clear how i can use the mentioned syntax with this kind of
> > query.
>
> No, you can't at the moment; you have to use the way you're doing it.
> There's been some speculation that SQL2003's LATERAL syntax might fix
> this problem, but no one's dug into it deeply enough to even be sure
> of that, let alone figure out what it'll take to implement it.
>
> If you're trying to avoid multiple evaluation of the
> function, the best
> way is to use "OFFSET 0" as an optimization fence to prevent
> flattening
> of a subquery. I get what seems to be the right thing from
>
> select (x).* from (select sumprod(f1,f2) as x from foo offset 0) ss;
>
> regards, tom lane
>
