Re: Allow an alias to be attached directly to a JOIN ... USING

From: Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>
To: Thomas Munro <thomas(dot)munro(at)gmail(dot)com>
Cc: Fabien COELHO <coelho(at)cri(dot)ensmp(dot)fr>, Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Allow an alias to be attached directly to a JOIN ... USING
Date: 2019-09-17 17:37:42
Message-ID: 20190917173742.GA8735@alvherre.pgsql
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On 2019-Aug-01, Thomas Munro wrote:

> Indeed, that seems like a problem, and it's a good question. You can
> see this on unpatched master with SELECT x.filler FROM
> (pgbench_tellers AS t JOIN b USING (bid)) AS x.

I'm not sure I understand why that problem is a blocker for this patch.

--
Álvaro Herrera https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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