Re: [PATCHES] WITH RECURSIVE patch V0.1

Hi,

From: Zoltan Boszormenyi <zb@cybertec.at>
Subject: Re: [PATCHES] WITH RECURSIVE patch V0.1
Date: Mon, 19 May 2008 08:19:17 +0200

> >> Also, it seems there are no infinite recursion detection:
> >>
> >> # with recursive x(level, parent, child) as (
> >>    select 1::integer, * from test_connect_by where parent is null
> >>    union all
> >>    select x.level + 1, base.* from test_connect_by as base, x where base.child
> >> = x.child
> >> ) select * from x;
> >> ... it waits and waits and waits ...
> >>
> >
> > Well, psql might wait and wait but it's actually receiving rows. A cleverer
> > client should be able to deal with infinite streams of records.
> >
>
> I think it's the other way around. The server should not emit infinite
> number of records.

How about adding new GUC parameter "max_recursive_call"?

Regards,
--
Yoshiyuki Asaba
y-asaba@sraoss.co.jp