Re: B-Tree support function number 3 (strxfrm() optimization)

From: Peter Geoghegan <pg(at)heroku(dot)com>
To: Robert Haas <robertmhaas(at)gmail(dot)com>
Cc: Andrew Gierth <andrew(at)tao11(dot)riddles(dot)org(dot)uk>, Heikki Linnakangas <hlinnakangas(at)vmware(dot)com>, Noah Misch <noah(at)leadboat(dot)com>, Marti Raudsepp <marti(at)juffo(dot)org>, Stephen Frost <sfrost(at)snowman(dot)net>, Greg Stark <stark(at)mit(dot)edu>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: B-Tree support function number 3 (strxfrm() optimization)
Date: 2015-01-21 02:39:42
Message-ID: CAM3SWZQoB-dYL_iNaWFrrzR5jyV+NsDL5AsnTsyuB6EWmxcHLw@mail.gmail.com
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On Tue, Jan 20, 2015 at 6:34 PM, Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
> That might be OK. Probably needs a bit of performance testing to see
> how it looks.

Well, we're still only doing it when we do our final merge. So that's
"only" doubling the number of conversions required, which if we're
blocked on I/O might not matter at all.

--
Peter Geoghegan

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