From: Michael Paquier <michael@paquier.xyz>
To: axykon@gmail.com
To: pgsql-docs@lists.postgresql.org
Subject: Re: Possible typos in the #12.1.1 examples
Date: Thu, 5 Mar 2020 16:45:23 +0900
Message-ID: <20200305074523.GX2593@paquier.xyz> (raw)
In-Reply-To: <158316348159.30450.16075357948244298217@wrigleys.postgresql.org>
References: <158316348159.30450.16075357948244298217@wrigleys.postgresql.org>
On Mon, Mar 02, 2020 at 03:38:01PM +0000, PG Doc comments form wrote:
> Seems like here the example missed 'm' as an alias and a dot in the `where`
> clause:
> ... messages m
> ... m.id = 12;
This query is valid as-is.
> SELECT m.title || ' ' || m.author || ' ' || m.abstract || ' ' || d.body AS
> document
> FROM messages m, docs d
> WHERE mid = did AND mid = 12;
>
> Possibly, the example missed dots:
> ... m.id = d.id AND m.id = 12;
This one is actually valid as well, as long as both relations don't
use the same column names, but I can see your point to add the aliases
to the quals of the WHERE clause to bring more clarity.
--
Michael
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To: pgsql-docs@postgresql.org
Cc: michael@paquier.xyz, axykon@gmail.com, pgsql-docs@lists.postgresql.org
Subject: Re: Possible typos in the #12.1.1 examples
In-Reply-To: <20200305074523.GX2593@paquier.xyz>
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