From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: FPI |
Date: | 2011-01-28 19:11:52 |
Message-ID: | AANLkTi=Jm=p256etktLcPjNnYEgCHQMoJVZSUhYtK2ii@mail.gmail.com |
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Lists: | pgsql-hackers |
On Fri, Jan 28, 2011 at 1:42 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Robert Haas <robertmhaas(at)gmail(dot)com> writes:
>> On Fri, Jan 28, 2011 at 10:13 AM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>>> Say what? A heap deletion compacts the page --- it will certainly fail
>>> badly on torn-page.
>
>> What do you mean by "compacts the page"? I would interpret that to
>> mean "reclaims the space formerly used by the tuple being deleted",
>> but it certainly can't do that.
>
> Oh, I'm sorry, I was confusing the case with vacuum cleanup. Obviously
> hadn't consumed any caffeine yet. Nevermind ...
OK. You had me worried for a minute there. :-)
Any substantive comments, besides the obvious "this is not 9.1 material"?
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
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