Re: [PATCH] we have added support for box type in SP-GiST index

On Mon, Mar 21, 2016 at 11:57 AM, Teodor Sigaev <teodor@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?

--
Kevin Grittner
EDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company