Re: Idea for getting rid of VACUUM FREEZE on cold pages

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Josh Berkus <josh(at)agliodbs(dot)com>
Cc: Robert Haas <robertmhaas(at)gmail(dot)com>, Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Idea for getting rid of VACUUM FREEZE on cold pages
Date: 2010-05-27 00:06:46
Message-ID: 4918.1274918806@sss.pgh.pa.us
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-hackers

Josh Berkus <josh(at)agliodbs(dot)com> writes:
> How does that get us out of reading and writing old pages, though?

Yeah. Neither PD_ALL_VISIBLE nor the visibility map are going to solve
your problem, because they cannot become set without having visited the
page.

regards, tom lane

In response to

Responses

Browse pgsql-hackers by date

  From Date Subject
Next Message Andrew Dunstan 2010-05-27 00:20:53 Re: Distclean does not remove gram.c
Previous Message Tom Lane 2010-05-26 23:58:52 Re: Distclean does not remove gram.c