Skip site navigation (1) Skip section navigation (2)

Re: WITH RECUSIVE patches 0723

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Andrew Gierth <andrew(at)tao11(dot)riddles(dot)org(dot)uk>
Cc: Tatsuo Ishii <ishii(at)postgresql(dot)org>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: WITH RECUSIVE patches 0723
Date: 2008-07-28 18:49:01
Message-ID: 25697.1217270941@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-hackerspgsql-patches
Andrew Gierth <andrew(at)tao11(dot)riddles(dot)org(dot)uk> writes:
> "Tom" == Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> writes:
>  Tom> That whole business of using the EState to pass tuplestores back
>  Tom> and forth looks fundamentally broken to me anyway; there's just
>  Tom> no way it'll be certain to link the right nodes together in
>  Tom> complicated cases with multiple recursions.

> Mutual recursion is not allowed;

Well, the spec allows it, so we're going to have to fix this kluge
sooner or later, even if it chances not to fail on the subset we
currently support.

			regards, tom lane

In response to

Responses

pgsql-hackers by date

Next:From: Andrew GierthDate: 2008-07-28 18:57:16
Subject: Re: WITH RECUSIVE patches 0723
Previous:From: Andrew GarnerDate: 2008-07-28 18:36:13
Subject: Re: Protocol 3, Execute, maxrows to return, impact?

pgsql-patches by date

Next:From: Andrew GierthDate: 2008-07-28 18:57:16
Subject: Re: WITH RECUSIVE patches 0723
Previous:From: Andrew GierthDate: 2008-07-28 17:39:33
Subject: Re: WITH RECUSIVE patches 0723

Privacy Policy | About PostgreSQL
Copyright © 1996-2014 The PostgreSQL Global Development Group