Skip site navigation (1) Skip section navigation (2)

Re: Load Distributed Checkpoints, take 3

From: Heikki Linnakangas <heikki(at)enterprisedb(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Greg Smith <gsmith(at)gregsmith(dot)com>, Patches <pgsql-patches(at)postgresql(dot)org>
Subject: Re: Load Distributed Checkpoints, take 3
Date: 2007-06-26 16:38:14
Message-ID: 468140F6.5010200@enterprisedb.com (view raw or flat)
Thread:
Lists: pgsql-patches
Tom Lane wrote:
> Heikki Linnakangas <heikki(at)enterprisedb(dot)com> writes:
>> Tom Lane wrote:
>>> (Note that COPY per se will not trigger this behavior anyway, since it
>>> will act in a limited number of buffers because of the recent buffer
>>> access strategy patch.)
> 
>> Actually we dropped it from COPY, because it didn't seem to improve 
>> performance in the tests we ran.
> 
> Who's "we"?  AFAICS, CVS HEAD will treat a large copy the same as any
> other large heapscan.

Umm, I'm talking about populating a table with COPY *FROM*. That's not a 
heap scan at all.

-- 
   Heikki Linnakangas
   EnterpriseDB   http://www.enterprisedb.com

In response to

Responses

pgsql-patches by date

Next:From: Tom LaneDate: 2007-06-26 17:23:05
Subject: Re: Load Distributed Checkpoints, take 3
Previous:From: Tom LaneDate: 2007-06-26 16:34:52
Subject: Re: Load Distributed Checkpoints, take 3

Privacy Policy | About PostgreSQL
Copyright © 1996-2014 The PostgreSQL Global Development Group