Re: recursive SQL

From: Hannu Krosing <hannu(at)tm(dot)ee>
To: "jacob koehler (RRes-Roth)" <jacob(dot)koehler(at)bbsrc(dot)ac(dot)uk>
Cc: pgsql-hackers(at)postgresql(dot)org, overholt(at)redhat(dot)com, Alexander Rüegg <arueegg(at)uni-bielefeld(dot)de>, gppl(at)inbox(dot)ru
Subject: Re: recursive SQL
Date: 2004-06-29 11:40:01
Message-ID: 1088509201.2680.22.camel@fuji.krosing.net
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-hackers

On T, 2004-06-29 at 13:11, jacob koehler (RRes-Roth) wrote:
> seems evgen has got a sql99 compliant version of recursive SQL
> out and would agree to relicense it.
> are there any other concerns regarding evgens work? or do you want to
> encourage him to go this route? i have the impression he would happily
> join in on the postgres developement wrt recursive SQL, and some friendly
> words might encourage him to do the required work.

> > the funny thing that i almost get working implementation
> > of SQL99 recursive queries,"just for fun";), and i think
> > it would not be included too;)

Maybe he knows of some fundamental flaws with his implementation ?

Why else does he think that it will not be accepted ?

He could at least try to submit it again, once it is past the "almost"
part :)

BTW, I also "almost" got a working implementation of SQL99 recursive
queries (at least it parsed the syntax ;), but gave up due to lack of
time and also because the SQL99 recursive queries are a desceptively
complex beast which I was unable to fully understand from the specs, at
least the part beyond the simple parent-child tree queries.

And the simple parent-child tree queriest are now doable using
set-returning functions.

----------------
Hannu

In response to

Browse pgsql-hackers by date

  From Date Subject
Next Message Bruno Wolff III 2004-06-29 13:37:15 Re: lock timeout patch
Previous Message Christopher Kings-Lynne 2004-06-29 11:23:45 Re: recursive SQL