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From: Alvaro Herrera <alvherre@alvh.no-ip.org>
To: Isaac Morland <isaac.morland@gmail.com>
Cc: Robert Haas <robertmhaas@gmail.com>
Cc: Pg Hackers <pgsql-hackers@lists.postgresql.org>
Subject: Re: cataloguing NOT NULL constraints
Date: Tue, 20 Sep 2022 12:53:02 +0200
Message-ID: <20220920105302.dyy2na6zfji4ded3@alvherre.pgsql> (raw)
In-Reply-To: <CAMsGm5dvPzXiq9=W1kbKcQGQxMHG3JJy1XZD4Dh8hOM7RD_18w@mail.gmail.com>

On 2022-Sep-19, Isaac Morland wrote:

> I thought I saw some discussion about the SQL standard saying that there is
> a difference between putting NOT NULL in a column definition, and CHECK
> (column_name NOT NULL). So if we're going to take this seriously,

Was it Peter E.'s reply to this thread?

https://postgr.es/m/bac841ed-b86d-e3c2-030d-02a3db067307@enterprisedb.com

because if it wasn't there, then I would like to know what you source
is.

-- 
Álvaro Herrera         PostgreSQL Developer  —  https://www.EnterpriseDB.com/
"Thou shalt not follow the NULL pointer, for chaos and madness await
thee at its end." (2nd Commandment for C programmers)





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