Re: five-key syscaches

From: Yeb Havinga <yebhavinga(at)gmail(dot)com>
To: Robert Haas <robertmhaas(at)gmail(dot)com>
Cc: Joachim Wieland <joe(at)mcknight(dot)de>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: five-key syscaches
Date: 2010-07-14 14:56:04
Message-ID: 4C3DD004.5030407@gmail.com
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Robert Haas wrote:
> On Wed, Jul 14, 2010 at 7:27 AM, Yeb Havinga <yebhavinga(at)gmail(dot)com> wrote:
>
>> Attach is a new patch with all things described above addressed.
>>
>
> Thanks!
>
> I think we should probably hold off applying this until some of the
> other KNNGIST work is ready, or we have some other concrete need for
> 5-key syscaches.
>
Any thoughts about the << 16 and >> 16 bit shifting on the 5th hash key
computation? I blithely copied it from the 3rd key.

--
Yeb

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