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From: David G. Johnston <[email protected]>
To: Lakshmi N <[email protected]>
Cc: [email protected] <[email protected]>
Cc: [email protected] <[email protected]>
Cc: [email protected] <[email protected]>
Subject: Re: Show VIRTUAL keyword for virtual generated columns in pg_dump and psql
Date: Mon, 13 Apr 2026 05:27:06 -0700
Message-ID: <CAKFQuwan3J1WdqtiXr4u9Lmj+5Z7r+hYOKfy_A1g23_8f90LWw@mail.gmail.com> (raw)
In-Reply-To: <CA+3i_M8Rj0yEA5rRbWjobNbcZsB0MExfZbKV-mkWwFeyRvanCw@mail.gmail.com>
References: <CA+3i_M8Rj0yEA5rRbWjobNbcZsB0MExfZbKV-mkWwFeyRvanCw@mail.gmail.com>

On Monday, April 13, 2026, Lakshmi N <[email protected]> wrote:
>
> pg_dump and psql's \d currently display stored and virtual generated
> columns asymmetrically:
>

>
>     s_total integer GENERATED ALWAYS AS ((a + b)) STORED
>     v_total integer GENERATED ALWAYS AS ((a + b))
>
> Since VIRTUAL is default most likely this was omitted but with this
>
puts the burden on the reader to identify whether it is STORED or
> VIRTUAL since both kinds coexist in v19.
>

The output follows existing conventions of not printing extraneous text.
Additionally, storage itself is non-standard so the absence of a modifier
is producing standard-compliant output.  I would -1 changing pg_dump on
this basis.  I’d be inclined to go with the symmetry/readability argument
for psql \d though.

David J.


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