Re: [HACKERS] multivariate statistics (v24)

On Thu, Mar 2, 2017 at 8:35 AM, Tomas Vondra
<tomas.vondra@2ndquadrant.com> wrote:
> attached is v24 of the patch series, addressing most of the reported issues
> and comments (at least I believe so). The main changes are:
>
> 1) I've mostly abandoned the "multivariate" name in favor of "extended",
> particularly in places referring to stats stored in the pg_statistic_ext in
> general. "Multivariate" is now used only in places talking about particular
> types (e.g. multivariate histograms).
>
> The "extended" name is more widely used for this type of statistics, and the
> assumption is that we'll also add other (non-multivariate) types of
> statistics - e.g. statistics on custom expressions, or some for of join
> statistics.

Oh, I like that.  I found it hard to wrap my head around what
"multivariate" was supposed to mean, exactly.  I think "extended" will
be clearer.

-- 
Robert Haas
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