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Re: Patch to change psql default banner v6

From: Alvaro Herrera <alvherre(at)commandprompt(dot)com>
To: Andrew Dunstan <andrew(at)dunslane(dot)net>
Cc: David Fetter <david(at)fetter(dot)org>, "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Bruce Momjian <bruce(at)momjian(dot)us>, pgsql-patches(at)postgresql(dot)org
Subject: Re: Patch to change psql default banner v6
Date: 2008-05-16 01:14:41
Message-ID: 20080516011441.GQ8221@alvh.no-ip.org (view raw or flat)
Thread:
Lists: pgsql-patches
Andrew Dunstan wrote:

> Second, it's not nearly as easy as that:
> . new commands have been added
> . postgres features have been added
> . catalogs have changed

Well, this just means a different piece of SQL needs to be sent for a
command depending on the server version, right?  It's not like that's
tremendously different.  The nice thing about most \X commands is that
they embed everything they need in a bunch of SQL, and they don't need
much else in C code.  So it's not all that difficult.

And for commands that have been added later, an initial version could
just say "this server version does not support this command".  It would
be already a huge improvement.

Probably the biggest change would be to support versions that did not
have schemas, but I think it would be OK to punt on that.  We already
stopped supporting 7.2 anyway.

-- 
Alvaro Herrera                                http://www.CommandPrompt.com/
The PostgreSQL Company - Command Prompt, Inc.

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Subject: Re: Patch to change psql default banner v6
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