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Re: Feedback from LinuxWorld, London

From: elein <elein(at)varlena(dot)com>
To: "Jim C(dot) Nasby" <jnasby(at)pervasive(dot)com>
Cc: "Marc G(dot) Fournier" <scrappy(at)postgresql(dot)org>,David Fetter <david(at)fetter(dot)org>, Peter Eisentraut <peter_e(at)gmx(dot)net>,pgsql-advocacy(at)postgresql(dot)org, Simon Riggs <simon(at)2ndquadrant(dot)com>
Subject: Re: Feedback from LinuxWorld, London
Date: 2005-10-11 00:55:45
Message-ID: 20051011005545.GI9155@varlena.com (view raw or flat)
Thread:
Lists: pgsql-advocacy
On Mon, Oct 10, 2005 at 07:18:01PM -0500, Jim C. Nasby wrote:
> On Mon, Oct 10, 2005 at 05:05:46PM -0700, elein wrote:
> > On Mon, Oct 10, 2005 at 05:42:31PM -0300, Marc G. Fournier wrote:
> > > On Mon, 10 Oct 2005, David Fetter wrote:
> > > 
> > > >In this case, it might be easier to make a writeable VIEW with two 
> > > >tables underneath and an appropriate call to ARRAY() and maybe to 
> > > >array_to_string()
> > > 
> > > Is there any work being done on UPDATEABLE VIEWs?  I found, at one point, 
> > > a 'work around' for it, but just wondering if there is any work being done 
> > > on a more 'native' method ...
> > 
> > We have updateable views if you write the rules for them.
> > A default updateable view could only be accurate all the
> > time if it only contained a single table reference.  Our
> 
> Well, you can create multi-table views that are also updateable.  IIRC
> the restriction is that joins must all be inner joins and you can't be
> doing any kind of group by. I know the DB2 docs talk about this and I'm
> pretty sure Oracle's do as well.

You can start adding the "yeah, buts" which only makes it more
confusing.  That is why I said "accurate ALL the time".

--elein

> -- 
> Jim C. Nasby, Sr. Engineering Consultant      jnasby(at)pervasive(dot)com
> Pervasive Software      http://pervasive.com    work: 512-231-6117
> vcard: http://jim.nasby.net/pervasive.vcf       cell: 512-569-9461
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Subject: Re: Feedback from LinuxWorld, London
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