Re: New variable server_version_num

From: "Jim C(dot) Nasby" <jnasby(at)pervasive(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: David Fetter <david(at)fetter(dot)org>, pgsql-hackers(at)postgresql(dot)org, Greg Sabino Mullane <greg(at)turnstep(dot)com>, pgsql-patches(at)postgresql(dot)org
Subject: Re: New variable server_version_num
Date: 2006-08-01 17:37:48
Message-ID: 20060801173748.GO40481@pervasive.com
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On Sun, Jul 30, 2006 at 11:27:33AM -0400, Tom Lane wrote:
> David Fetter <david(at)fetter(dot)org> writes:
> > On Sat, Jul 29, 2006 at 09:44:10PM -0400, Tom Lane wrote:
> >> The correct solution is for client-side libraries to provide the
> >> feature.
>
> > Not if the app is written in SQL, as the bootstrap, regression test,
> > etc. code for modules frequently is.
>
> SQL doesn't really have any conditional ability strong enough to deal
> with existence or non-existence of features. What are you hoping to
> do, a CASE expression? Both arms of the CASE still have to parse,
> so I remain unconvinced that there are real world uses.

There's also plpgsql, which afaik has no way to get the version number
(other than slogging though the output of version()).
--
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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