| From: | Stas Kelvich <s(dot)kelvich(at)postgrespro(dot)ru> |
|---|---|
| To: | Kevin Grittner <kgrittn(at)gmail(dot)com> |
| Cc: | Teodor Sigaev <teodor(at)sigaev(dot)ru>, emre(at)hasegeli(dot)com, Oleg Bartunov <obartunov(at)gmail(dot)com>, David Steele <david(at)pgmasters(dot)net>, Pgsql Hackers <pgsql-hackers(at)postgresql(dot)org>, Alexander Lebedev <a(dot)lebedev(at)postgrespro(dot)ru> |
| Subject: | Re: [PATCH] we have added support for box type in SP-GiST index |
| Date: | 2016-03-21 21:54:53 |
| Message-ID: | 6C555E82-AB18-4983-BEDC-08AA16C58ABD@postgrespro.ru |
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| Lists: | pgsql-hackers |
> On 21 Mar 2016, at 22:38, Kevin Grittner <kgrittn(at)gmail(dot)com> wrote:
>
> On Mon, Mar 21, 2016 at 11:57 AM, Teodor Sigaev <teodor(at)sigaev(dot)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 rigorous.
Stas Kelvich
Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company
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