| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Teodor Sigaev <teodor(at)sigaev(dot)ru>, Oleg Bartunov <oleg(at)sai(dot)msu(dot)su>, tomas(at)tuxteam(dot)de, "Ragi Y(dot) Burhum" <rburhum(at)gmail(dot)com>, Pgsql Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: knngist patch support |
| Date: | 2010-02-13 18:31:44 |
| Message-ID: | 603c8f071002131031y91d2297qc29d28de5c8f5dfc@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Sat, Feb 13, 2010 at 1:28 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Teodor Sigaev <teodor(at)sigaev(dot)ru> writes:
>> I see your point. May be it's better to introduce new system table? pg_amorderop
>> to store ordering operations for index.
>
> We could, but that approach doesn't scale to wanting more categories
> in the future --- you're essentially decreeing that every new category
> of opclass-associated operator will require a new system catalog,
> along with all the infrastructure needed for that. That guarantees
> that the temptation to take shortcuts will remain high.
Yeah. PFA a patch to allow 5-key syscaches.
...Robert
| Attachment | Content-Type | Size |
|---|---|---|
| syscache5-v1.patch | application/octet-stream | 274.9 KB |
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