Re: WIP: further sorting speedup

From: "Jim C(dot) Nasby" <jnasby(at)pervasive(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: pgsql-patches(at)postgreSQL(dot)org
Subject: Re: WIP: further sorting speedup
Date: 2006-02-23 18:07:02
Message-ID: 20060223180702.GC86022@pervasive.com
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On Wed, Feb 22, 2006 at 10:18:48PM -0500, Tom Lane wrote:
> "Jim C. Nasby" <jnasby(at)pervasive(dot)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(at)pervasive(dot)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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