Re: WIP: further sorting speedup

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От Jim C. Nasby
Тема Re: WIP: further sorting speedup
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Msg-id 20060223180702.GC86022@pervasive.com
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Ответ на Re: WIP: further sorting speedup  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: WIP: further sorting speedup
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On Wed, Feb 22, 2006 at 10:18:48PM -0500, Tom Lane wrote:
> "Jim C. Nasby" <jnasby@pervasive.com> writes:
> > Stupid question... how are varlena's handled in Datum?
>
> The Datum is just a pointer into the original tuple in that case.

That would still result in a speedup since you don't have to figure out
where the field begins though, right? I'm curious as to how much this
patch would help with sorting text...
--
Jim C. Nasby, Sr. Engineering Consultant      jnasby@pervasive.com
Pervasive Software      http://pervasive.com    work: 512-231-6117
vcard: http://jim.nasby.net/pervasive.vcf       cell: 512-569-9461

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