| From: | Peter Geoghegan <pg(at)heroku(dot)com> |
|---|---|
| To: | Andres Freund <andres(at)2ndquadrant(dot)com> |
| Cc: | Fujii Masao <masao(dot)fujii(at)gmail(dot)com>, Bruce Momjian <bruce(at)momjian(dot)us>, Robert Haas <robertmhaas(at)gmail(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Heikki Linnakangas <hlinnakangas(at)vmware(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>, Mike Blackwell <mike(dot)blackwell(at)rrd(dot)com> |
| Subject: | Re: Performance Improvement by reducing WAL for Update Operation |
| Date: | 2014-02-04 22:03:15 |
| Message-ID: | CAM3SWZR7VE=oKVpnHp0Pn624zaveQC3Y9wjSmXycKQV=yKiwHA@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Tue, Feb 4, 2014 at 1:58 PM, Andres Freund <andres(at)2ndquadrant(dot)com> wrote:
> I think there's zero overlap. They're completely complimentary features. It's not like normal WAL records have an irrelevant volume.
I'd have thought so too, but I would not like to assume. Like many
people commenting on this thread, I don't know very much about
compression.
--
Peter Geoghegan
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