Date: Wed, 24 Mar 2021 16:50:24 -0300
From: Alvaro Herrera <alvherre@alvh.no-ip.org>
To: Justin Pryzby <pryzby@telsasoft.com>
Cc: Dean Rasheed <dean.a.rasheed@gmail.com>,
	Tomas Vondra <tomas.vondra@enterprisedb.com>,
	pgsql-hackers@postgresql.org
Subject: Re: PoC/WIP: Extended statistics on expressions
Message-ID: <20210324195024.GA22941@alvherre.pgsql>
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On 2021-Mar-24, Justin Pryzby wrote:

> On Wed, Mar 24, 2021 at 05:15:46PM +0000, Dean Rasheed wrote:

> > Hmm, I think "univariate" and "multivariate" are pretty ubiquitous,
> > when used to describe statistics. You could use "single-column" and
> > "multi-column", but then "column" isn't really right anymore, since it
> > might be a column or an expression. I can't think of any other terms
> > that fit.

Agreed.  If we need to define the term, we can spend a sentence or two
in that.

> We already use "multivariate", just not in create-statistics.sgml

> So I think the answer is for create-statistics to expose that word in a
> user-facing way in its reference to multivariate-statistics-examples.

+1

-- 
Álvaro Herrera       Valdivia, Chile