> On 21 Mar 2016, at 22:38, Kevin Grittner <kgri...@gmail.com> wrote:
> On Mon, Mar 21, 2016 at 11:57 AM, Teodor Sigaev <teo...@sigaev.ru> wrote:
>>> I couldn't get the term 4D point.  Maybe it means that we are
>>> using box datatype as the prefix, but we are not treating them
>>> as boxes.
>> exactly, we treat boxes as 4-dimentional points.
> I'm not entirely sure I understand the terminology either, since I
> tend to think of a *point* as having *zero* dimensions.  Would it
> perhaps be more accurate to say we are treating a 2-dimensional box
> as a point in 4-dimensional space?

Or just say 4-d vector instead of 4-d point. Look like it will be enough 

Stas Kelvich
Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company

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