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	id AA01817; Thu, 11 Jun 92 16:10:45 -0700
Message-Id: <9206112310.AA01817@postgres.Berkeley.EDU>
From: <mao@postgres.berkeley.edu>
Subject: Re: retrieving class attributes
To: postgres@postgres.berkeley.edu
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In-Reply-To: Your message of Thu, 11 Jun 92 16:01:02 PST.
             <9206112301.AA01624@postgres.Berkeley.EDU> 
Date: Thu, 11 Jun 92 16:10:41 PDT

In message <9206112301.AA01624@postgres.Berkeley.EDU> you write:

> >	retrieve (foo.all) where 1=0
> 
> Is the former documented anywhere? I have been using the latter and others
> like it to get database meta-data.

well, it's just a query that returns no rows (since there exists no tuple
for which 1 = 0).  queries always show their target lists.  it's not
documented as a special command, no; it's not really worth the trouble.

					mike