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Date: Tue, 3 Apr 2018 09:24:39 -0400
From: Bruce Momjian <bruce@momjian.us>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: "David G. Johnston" <david.g.johnston@gmail.com>,
	Euler Taveira <euler@timbira.com.br>, dirk.lattermann@leanix.net,
	pgsql-docs@lists.postgresql.org
Subject: Re: Synopsis of SELECT statement: UNION, INTERSECTION, EXCEPT
Message-ID: <20180403132439.GA11837@momjian.us>
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On Mon, Apr  2, 2018 at 08:21:45PM -0400, Tom Lane wrote:
> Bruce Momjian <bruce@momjian.us> writes:
> > Based on this discussion, I have developed the attached patch which
> > tries to clarify the behavior without adding complexity.
> 
> I don't think this is an improvement, really ... in particular, it
> makes the <synopsis> not self-contained, which is pretty horrible
> for psql's help.

Well, we know we are limited in how much precision we can add without
losing clarity.  I don't have any new ideas so we will just have to keep
what we have, though I do think mine was an improvement in enough areas
to warrant it.

-- 
  Bruce Momjian  <bruce@momjian.us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

+ As you are, so once was I.  As I am, so you will be. +
+                      Ancient Roman grave inscription +