| From: | Stas Kelvich <stas(dot)kelvich(at)gmail(dot)com> |
|---|---|
| To: | Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com> |
| Cc: | Teodor Sigaev <teodor(at)sigaev(dot)ru>, Alexander Korotkov <a(dot)korotkov(at)postgrespro(dot)ru>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Cube extension kNN support |
| Date: | 2015-12-16 14:31:33 |
| Message-ID: | 75E00538-B701-4CAD-95F2-69A9FBD78B0F@gmail.com |
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| Thread: | |
| Lists: | pgsql-hackers |
> I don't think that's what the comment says, actually. It rather refers to code like this:
>
> result = Min(LL_COORD(c, n - 1), UR_COORD(c, n - 1));
>
> i.e. if you specifically ask for a particular corner (ll, in this case), you'll get the proper value.
Hmm, I was confused by phrase “create a uniform _internal_ representation” and actually internally cube stored “as is”. But probably i just misinterpret that.
So here is the updated version with old documentation restored.
| Attachment | Content-Type | Size |
|---|---|---|
| cube_distances.patch | application/octet-stream | 66.3 KB |
| unknown_filename | text/plain | 2.4 KB |
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