From: Tom Lane <tgl@sss.pgh.pa.us>
To: Andres Freund <andres@anarazel.de>
cc: Kevin Grittner <kgrittn@gmail.com>, Robert Haas <robertmhaas@gmail.com>,
        "pgsql-hackers@postgresql.org" <pgsql-hackers@postgresql.org>
Subject: Re: Implement targetlist SRFs using ROWS FROM() (was Changed SRF in
 targetlist handling)
In-reply-to: <20160902142023.ktgvv4ksnqinqr74@alap3.anarazel.de>
References: <20160523005327.v2tr7obytitxcnna@alap3.anarazel.de>
 <20160822214023.aaxz5l4igypowyri@alap3.anarazel.de>
 <CA+TgmoboLaUy71iLKa2GPcnioWmNxhCFdcDj-F05sZOGgRO0NA@mail.gmail.com>
 <CACjxUsM7PUBF3_u-+J7j1WsoRZ9OVNTw2+=P15t2pqnv7utktQ@mail.gmail.com>
 <20160902141110.6xciuntt5h4i6eni@alap3.anarazel.de>
 <20160902142023.ktgvv4ksnqinqr74@alap3.anarazel.de>
Comments: In-reply-to Andres Freund <andres@anarazel.de>
	message dated "Fri, 02 Sep 2016 07:20:23 -0700"
Date: Fri, 02 Sep 2016 10:25:00 -0400
Message-ID: <10163.1472826300@sss.pgh.pa.us>
Precedence: bulk
Sender: pgsql-hackers-owner@postgresql.org

Andres Freund <andres@anarazel.de> writes:
> Oh, and we've previously re-added that based on
> complaints. C.f. d543170f2fdd6d9845aaf91dc0f6be7a2bf0d9e7 (and others
> IIRC).

That one wasn't about row order per se, but I agree that people *will*
bitch if we change the behavior, especially if we don't provide a way
to fix it.  ORDER BY is not a useful suggestion when there is nothing
you could order by to get the old behavior.

			regards, tom lane


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