Re: [PATCH] Proposal for HIDDEN/INVISIBLE column

From: Gilles Darold <gilles(at)darold(dot)net>
To: Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>, Vik Fearing <vik(at)postgresfriends(dot)org>
Cc: Aleksander Alekseev <aleksander(at)timescale(dot)com>, Gilles Darold <gilles(at)migops(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: [PATCH] Proposal for HIDDEN/INVISIBLE column
Date: 2021-10-14 13:32:00
Message-ID: 52034062-3c42-26db-8c0d-bebab59dced8@darold.net
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Le 14/10/2021 à 14:28, Pavel Stehule a écrit :
>
>
> čt 14. 10. 2021 v 14:13 odesílatel Vik Fearing
> <vik(at)postgresfriends(dot)org <mailto:vik(at)postgresfriends(dot)org>> napsal:
>
> On 10/14/21 1:47 PM, Aleksander Alekseev wrote:
> > Hi Gilles,
> >
> >> Any though and interest in this feature?
> >
> > Personally, I wouldn't call this feature particularly useful.
> `SELECT
> > *` is intended for people who are working with DBMS directly
> e.g. via
> > psql and want to see ALL columns.
>
> I disagree strongly with this.  It is really annoying when working
> interactively with psql on a table that has a PostGIS geometry column,
> or any other large blobby type column.
>
> I have not looked at the patch, but +1 for the feature.
>
>
> Cannot be better to redefine some strategies for output for some types.
>
> I can agree so sometimes in some environments proposed features can be
> nice, but it can be a strong footgun too.
>
> Maybe some strange data can be filtered in psql and it can be better
> solution. I agree, so usually print long geometry in psql is useless.

Pavel this doesn't concern only output but input too, think about the
INSERT or COPY without a column list. We can add such filter in psql but
how about other clients? They all have to implement their own filtering
method. I think the HIDDEN attribute provide a common and basic way to
implement that in all client application.

--
Gilles Darold
http://www.darold.net/

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