From:
Jim Nasby <jim(at)nasby(dot)net>
To:
Robert Haas <robertmhaas(at)gmail(dot)com>
Cc:
Jeff Davis <pgsql(at)j-davis(dot)com>,
Bruce Momjian <bruce(at)momjian(dot)us>,
Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>,
Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>,
pgsql-hackers(at)postgresql(dot)org
Subject:
Re: crash-safe visibility map, take three
Date:
2010-12-01 23:41:33
Message-ID:
CCE55EDE-8354-4E2B-A815-E5A29018D33F@nasby.net (view raw or flat )
Thread:
2010-11-30 04:57:25 from Robert Haas <robertmhaas(at)gmail(dot)com>
2010-11-30 07:34:04 from Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
2010-11-30 15:32:15 from Robert Haas <robertmhaas(at)gmail(dot)com>
2010-11-30 15:43:47 from Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
2010-11-30 15:54:50 from Robert Haas <robertmhaas(at)gmail(dot)com>
2010-11-30 16:40:10 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2010-11-30 16:48:08 from Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
2010-11-30 16:54:43 from Robert Haas <robertmhaas(at)gmail(dot)com>
2010-11-30 16:59:20 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2010-11-30 17:01:56 from Robert Haas <robertmhaas(at)gmail(dot)com>
2010-11-30 15:38:02 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2010-11-30 15:46:44 from Robert Haas <robertmhaas(at)gmail(dot)com>
2010-11-30 15:53:25 from Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
2010-11-30 16:02:05 from Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
2010-11-30 16:16:33 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2010-11-30 16:22:03 from Robert Haas <robertmhaas(at)gmail(dot)com>
2010-11-30 16:27:04 from Robert Haas <robertmhaas(at)gmail(dot)com>
2010-11-30 16:33:18 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2010-11-30 16:47:40 from Robert Haas <robertmhaas(at)gmail(dot)com>
2010-11-30 16:49:34 from Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
2010-11-30 16:55:44 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2010-11-30 17:00:29 from Robert Haas <robertmhaas(at)gmail(dot)com>
2010-11-30 17:10:49 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2010-11-30 17:12:35 from Robert Haas <robertmhaas(at)gmail(dot)com>
2010-11-30 17:22:02 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2010-11-30 17:25:18 from Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
2010-11-30 17:36:07 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2010-11-30 17:25:41 from Robert Haas <robertmhaas(at)gmail(dot)com>
2010-11-30 17:26:08 from Robert Haas <robertmhaas(at)gmail(dot)com>
2010-11-30 16:59:47 from Robert Haas <robertmhaas(at)gmail(dot)com>
2010-12-01 01:35:56 from Bruce Momjian <bruce(at)momjian(dot)us>
2010-12-01 07:35:40 from Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
2010-12-01 13:39:07 from Bruce Momjian <bruce(at)momjian(dot)us>
2010-12-01 13:53:12 from Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
2010-12-01 14:57:51 from "Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov>
2010-12-01 15:46:21 from Robert Haas <robertmhaas(at)gmail(dot)com>
2010-12-01 15:36:51 from Bruce Momjian <bruce(at)momjian(dot)us>
2010-12-01 16:25:36 from Robert Haas <robertmhaas(at)gmail(dot)com>
2010-12-01 16:40:39 from Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
2010-12-01 16:43:39 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2010-12-01 17:23:50 from Robert Haas <robertmhaas(at)gmail(dot)com>
2010-12-01 16:40:46 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2010-12-01 16:44:12 from Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
2010-12-01 16:48:03 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2010-12-01 17:22:41 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2010-12-01 17:31:36 from Robert Haas <robertmhaas(at)gmail(dot)com>
2010-12-01 20:31:27 from Jeff Davis <pgsql(at)j-davis(dot)com>
2010-12-01 20:59:49 from Robert Haas <robertmhaas(at)gmail(dot)com>
2010-12-01 21:27:28 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2010-12-01 22:24:22 from Jeff Davis <pgsql(at)j-davis(dot)com>
2010-12-02 04:22:12 from Robert Haas <robertmhaas(at)gmail(dot)com>
2010-12-02 11:37:57 from Dimitri Fontaine <dimitri(at)2ndQuadrant(dot)fr>
2010-12-02 14:37:37 from Robert Haas <robertmhaas(at)gmail(dot)com>
2010-12-02 19:01:43 from Jeff Davis <pgsql(at)j-davis(dot)com>
2010-12-02 19:16:09 from "Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov>
2010-12-02 22:00:18 from Robert Haas <robertmhaas(at)gmail(dot)com>
2010-12-02 23:37:05 from Jeff Davis <pgsql(at)j-davis(dot)com>
2010-12-03 00:06:29 from Robert Haas <robertmhaas(at)gmail(dot)com>
2010-12-03 00:40:44 from Jeff Davis <pgsql(at)j-davis(dot)com>
2010-12-01 23:41:33 from Jim Nasby <jim(at)nasby(dot)net>
2010-12-02 04:36:42 from Robert Haas <robertmhaas(at)gmail(dot)com>
2010-12-03 14:25:20 from Florian Weimer <fweimer(at)bfk(dot)de>
2010-11-30 16:27:30 from Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
2010-11-30 16:10:13 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2010-11-30 16:30:53 from Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
2010-11-30 16:37:13 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2010-11-30 13:18:12 from Rob Wultsch <wultsch(at)gmail(dot)com>
2011-01-05 20:22:54 from Jesper Krogh <jesper(at)krogh(dot)cc>
2011-01-06 02:10:15 from Robert Haas <robertmhaas(at)gmail(dot)com>
2011-01-06 07:00:29 from Jesper Krogh <jesper(at)krogh(dot)cc>
2011-01-07 18:28:54 from Jim Nasby <jim(at)nasby(dot)net>
2011-01-08 02:59:36 from Robert Haas <robertmhaas(at)gmail(dot)com>
Lists:
pgsql-hackers
On Dec 1, 2010, at 2:59 PM, Robert Haas wrote:
> 2. Hint bits are necessary because an old XID can't be viewed as
> guaranteed committed.
Hmm... I thought hint bits were necessary because it's too expensive to query CLOG for every tuple. If my understanding is correct then if we fix the CLOG performance issue we don't need hint bits anymore.
--
Jim C. Nasby, Database Architect jim(at)nasby(dot)net
512.569.9461 (cell) http://jim.nasby.net
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Next :From: LewDate: 2010-12-01 23:43:21Subject : Re: [HACKERS] Improved JDBC driver part 2Previous :From : Greg SmithDate : 2010-12-01 22:48:05Subject : Re: We really ought to do something about O_DIRECT and
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