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List:       postgresql-general
Subject:    Re: [HACKERS] recursive SQL
From:       "jacob koehler (RRes-Roth)" <jacob.koehler () bbsrc ! ac ! uk>
Date:       2004-06-30 10:40:17
Message-ID: EFDAAE7F4B83D243868A2F25AD8A4B38D36500 () rothe2ksrv1 ! rothamsted ! bbsrc ! ac ! uk
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> -----Original Message-----
> From: Andrew Overholt [mailto:overholt@redhat.com] 
> Sent: 28 June 2004 16:45
> To: jacob koehler (RRes-Roth)
> Cc: pgsql-hackers@postgresql.org; gppl@inbox.ru; Alexander Rüegg
> Subject: Re: recursive SQL
> 
> 
> * jacob koehler (RRes-Roth) <jacob.koehler@bbsrc.ac.uk> 
> [2004-06-27 20:58]:
> > 
> > cons:
> > - its not standard SQL (uses oracle style syntax)
> 
> Besides the GPL issue, this is my biggest problem.
> 
> > i am aware of the fact that tom lane pointed to the fact 
> that Andrew 
> > Overholt did work towards SQL99 compliant recursive 
> queries. it would 
> > be interesting to know andrews opinion how much more work would be 
> > needed to get a SQL99 compliant version out based on the 
> work he has 
> > done so far, and what he thinks about Evgen potemkin's 
> patch (i cced 
> > this mail to Andrew and Evgen).
> 
> My work towards SQL-standard recursive queries is nowhere 
> near complete and I'm sure any patches I had are severely 
> rotten by now.  I'll try to grab what I had and see if I can 
> get a patch from which people can maybe pick up.

thank you for your reply. i know that sql99 recursive sql is "a beast". maybe it \
would be good if you have a look on evgens recent work, and try to decide if it is \
better to continue on his or on your work? or maybe some things from him and from you \
can be thrown together?

> Sorry for dropping the ball on this one.  I was back 
> finishing up my degree this past year and my current work 

which is a reason that i can understand very well...

> isn't database-related :( .  I'll see what I can do.  This 
> would be a great feature for PostgreSQL.

i perfectly agree...

cheers
jacob

> 
> Andrew
> 

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