Received: from malur.postgresql.org ([217.196.149.56])
	by arkaria.postgresql.org with esmtps
 (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA384:256)
	(Exim 4.89)
	(envelope-from <pgsql-docs-owner+archive@lists.postgresql.org>)
	id 1f39i3-0005qN-E9
	for pgsql-docs@arkaria.postgresql.org; Tue, 03 Apr 2018 00:21:59 +0000
Received: from localhost ([127.0.0.1] helo=malur.postgresql.org)
	by malur.postgresql.org with esmtp (Exim 4.89)
	(envelope-from <pgsql-docs-owner+archive@lists.postgresql.org>)
	id 1f39i1-0004e6-OU
	for pgsql-docs@arkaria.postgresql.org; Tue, 03 Apr 2018 00:21:57 +0000
Received: from makus.postgresql.org ([2001:4800:1501:1::229])
	by malur.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA384:256)
	(Exim 4.89)
	(envelope-from <tgl@sss.pgh.pa.us>)
	id 1f39i1-0004dt-Fm
	for pgsql-docs@lists.postgresql.org; Tue, 03 Apr 2018 00:21:57 +0000
Received: from sss.pgh.pa.us ([66.207.139.130])
	by makus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA384:256)
	(Exim 4.89)
	(envelope-from <tgl@sss.pgh.pa.us>)
	id 1f39hv-0007Dt-2p
	for pgsql-docs@lists.postgresql.org; Tue, 03 Apr 2018 00:21:56 +0000
Received: from sss1.sss.pgh.pa.us (localhost [127.0.0.1])
	by sss.pgh.pa.us (8.14.4/8.14.4) with ESMTP id w330LjAA032506;
	Mon, 2 Apr 2018 20:21:45 -0400
From: Tom Lane <tgl@sss.pgh.pa.us>
To: Bruce Momjian <bruce@momjian.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
In-reply-to: <20180403000521.GA12774@momjian.us>
References: <152110913499.1223.7026776990975251345@wrigleys.postgresql.org>
 <CAHE3wgiaV1YyQ6-v12R4bzmQoUc_5E3hBupKxHTzLXg2TOsh-g@mail.gmail.com>
 <28115.1521177420@sss.pgh.pa.us>
 <CAKFQuwayZRHgyQRrA=wYJnh6V-C3jZeumk=yfxjei=LxeBbGCA@mail.gmail.com>
 <20180403000521.GA12774@momjian.us>
Comments: In-reply-to Bruce Momjian <bruce@momjian.us>
	message dated "Mon, 02 Apr 2018 20:05:21 -0400"
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-ID: <32504.1522714905.1@sss.pgh.pa.us>
Date: Mon, 02 Apr 2018 20:21:45 -0400
Message-ID: <32505.1522714905@sss.pgh.pa.us>
List-Id: <pgsql-docs.lists.postgresql.org>
List-Help: <https://lists.postgresql.org/manage/>
List-Subscribe: <https://lists.postgresql.org/manage/>
List-Post: <mailto:pgsql-docs@lists.postgresql.org>
List-Owner: <mailto:pgsql-docs-owner@lists.postgresql.org>
List-Archive: <https://www.postgresql.org/list/pgsql-docs>
Precedence: bulk

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.

			regards, tom lane