From: Tom Lane <tgl@sss.pgh.pa.us>
To: Tomas Vondra <tomas.vondra@2ndquadrant.com>
cc: Alvaro Herrera <alvherre@2ndquadrant.com>,
        Tatsuro Yamada <tatsuro.yamada.tf@nttcom.co.jp>,
        Julien Rouhaud <rjuju123@gmail.com>,
        Pavel Stehule <pavel.stehule@gmail.com>,
        PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Subject: Re: list of extended statistics on psql
In-reply-to: <20200830164818.b4rl4uk6wzfzrsys@development>
References: <20200829225436.atuttqilrcgppqio@development>
 <20200830163329.GA21915@alvherre.pgsql>
 <20200830164818.b4rl4uk6wzfzrsys@development>
Comments: In-reply-to Tomas Vondra <tomas.vondra@2ndquadrant.com>
	message dated "Sun, 30 Aug 2020 18:48:18 +0200"
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Date: Sun, 30 Aug 2020 12:59:57 -0400
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Tomas Vondra <tomas.vondra@2ndquadrant.com> writes:
> On Sun, Aug 30, 2020 at 12:33:29PM -0400, Alvaro Herrera wrote:
>> I wonder how to report that.  Knowing that psql \-commands are not meant
>> for anything other than human consumption, maybe we can use a format()
>> string that says "built: %d bytes" when \dX+ is used (for each stat type),
>> and just "built" when \dX is used.  What do people think about this?

Seems a little too cute to me.

> I'd use the same approach as \d+, i.e. a separate column with the size.
> Maybe that'd mean too many columns, though.

psql already has \d commands with so many columns that you pretty much
have to use \x mode to make them legible; \df+ for instance.  I don't
mind if \dX+ is also in that territory.  It'd be good though if plain
\dX can fit in a normal terminal window.

			regards, tom lane