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From: Peter Eisentraut <[email protected]>
To: jian he <[email protected]>
Cc: pgsql-hackers <[email protected]>
Subject: Re: Virtual generated columns
Date: Mon, 1 Jul 2024 09:06:46 +0200
Message-ID: <[email protected]> (raw)
In-Reply-To: <CACJufxE+E-iYmBnZVZHiYA+WpyZZVv7BfiBLpo=T70EZHDU9rw@mail.gmail.com>
References: <[email protected]>
	<[email protected]>
	<CACJufxE+E-iYmBnZVZHiYA+WpyZZVv7BfiBLpo=T70EZHDU9rw@mail.gmail.com>

On 28.06.24 02:00, jian he wrote:
> inhttps://www.postgresql.org/docs/current/catalog-pg-attrdef.html
> The catalog pg_attrdef stores column default values. The main
> information about columns is stored in pg_attribute. Only columns for
> which a default value has been explicitly set will have an entry here.
> didn't mention generated columns related expressions.
> Do we need to add something here? maybe a separate issue?

Yes and yes.  I have committed a separate change to update the 
documentation here.

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