From:
"Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov>
To:
"Bruce Momjian" <bruce(at)momjian(dot)us>,"Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc:
"Daniel Farina" <daniel(at)heroku(dot)com>,
"pgsql-hackers" <pgsql-hackers(at)postgresql(dot)org>
Subject:
Re: pg_upgrade and statistics
Date:
2012-03-13 14:28:58
Message-ID:
4F5F135A02000025000461F5@gw.wicourts.gov (view raw or flat )
Thread:
2012-03-13 01:38:30 from Daniel Farina <daniel(at)heroku(dot)com>
2012-03-13 03:10:37 from Bruce Momjian <bruce(at)momjian(dot)us>
2012-03-13 04:12:27 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2012-03-13 07:35:14 from Daniel Farina <daniel(at)heroku(dot)com>
2012-03-13 14:10:25 from Bruce Momjian <bruce(at)momjian(dot)us>
2012-03-13 14:28:58 from "Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov>
2012-03-13 15:14:33 from Bruce Momjian <bruce(at)momjian(dot)us>
2012-03-13 07:33:09 from Daniel Farina <daniel(at)heroku(dot)com>
2012-03-13 14:14:43 from Bruce Momjian <bruce(at)momjian(dot)us>
2012-03-13 14:34:16 from Alvaro Herrera <alvherre(at)commandprompt(dot)com>
2012-03-13 14:49:26 from Bruce Momjian <bruce(at)momjian(dot)us>
2012-03-13 15:08:41 from Alvaro Herrera <alvherre(at)commandprompt(dot)com>
2012-03-13 15:16:16 from Bruce Momjian <bruce(at)momjian(dot)us>
2012-03-13 17:46:06 from Greg Stark <stark(at)mit(dot)edu>
2012-03-13 18:18:58 from "Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov>
2012-03-13 18:53:26 from Bruce Momjian <bruce(at)momjian(dot)us>
2012-03-13 19:07:14 from "Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov>
2012-03-13 19:25:50 from "Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov>
2012-03-13 19:30:19 from Bruce Momjian <bruce(at)momjian(dot)us>
2012-03-13 19:48:37 from "Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov>
2012-03-13 20:17:23 from "Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov>
2012-03-13 21:28:33 from Greg Stark <stark(at)mit(dot)edu>
2012-03-13 21:40:09 from Bruce Momjian <bruce(at)momjian(dot)us>
2012-03-13 18:52:29 from Bruce Momjian <bruce(at)momjian(dot)us>
2012-03-13 19:44:28 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2012-03-13 20:10:02 from Peter Eisentraut <peter_e(at)gmx(dot)net>
2012-03-13 20:17:27 from Bruce Momjian <bruce(at)momjian(dot)us>
2012-03-13 20:29:22 from "Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov>
2012-03-13 21:42:41 from Bruce Momjian <bruce(at)momjian(dot)us>
2012-03-13 22:30:19 from Robert Haas <robertmhaas(at)gmail(dot)com>
2012-03-13 22:40:53 from "Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov>
2012-03-13 23:02:03 from Daniel Farina <daniel(at)heroku(dot)com>
2012-03-13 23:28:53 from Andrew Dunstan <andrew(at)dunslane(dot)net>
2012-03-13 22:33:29 from "Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov>
2012-03-14 00:22:51 from Bruce Momjian <bruce(at)momjian(dot)us>
2012-03-14 00:30:17 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2012-03-14 00:34:00 from Bruce Momjian <bruce(at)momjian(dot)us>
2012-03-14 04:03:26 from Euler Taveira <euler(at)timbira(dot)com>
2012-03-14 20:40:41 from Peter Eisentraut <peter_e(at)gmx(dot)net>
2012-03-14 21:36:22 from Bruce Momjian <bruce(at)momjian(dot)us>
2012-03-15 06:22:24 from Peter Eisentraut <peter_e(at)gmx(dot)net>
2012-03-15 15:03:34 from Bruce Momjian <bruce(at)momjian(dot)us>
2012-03-15 15:15:42 from Andrew Dunstan <andrew(at)dunslane(dot)net>
2012-03-15 15:46:04 from Bruce Momjian <bruce(at)momjian(dot)us>
2012-03-16 22:55:04 from Bruce Momjian <bruce(at)momjian(dot)us>
2012-03-15 15:51:36 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2012-03-15 17:45:16 from Greg Stark <stark(at)mit(dot)edu>
2012-03-15 18:48:09 from Alvaro Herrera <alvherre(at)commandprompt(dot)com>
2012-03-15 20:34:45 from Ants Aasma <ants(at)cybertec(dot)at>
2012-03-15 18:20:52 from Peter Eisentraut <peter_e(at)gmx(dot)net>
2012-03-15 18:31:06 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2012-03-15 15:20:02 from "Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov>
2012-03-15 15:48:42 from Bruce Momjian <bruce(at)momjian(dot)us>
2012-03-14 01:15:52 from Bruce Momjian <bruce(at)momjian(dot)us>
2012-03-15 00:09:08 from Bruce Momjian <bruce(at)momjian(dot)us>
2012-03-15 00:26:06 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2012-03-15 01:21:24 from Bruce Momjian <bruce(at)momjian(dot)us>
Lists:
pgsql-hackers
Bruce Momjian <bruce(at)momjian(dot)us> wrote:
> I just received a sobering blog comment stating that pg_upgrade
> took 5 minutes on a 0.5TB database, but analyze took over an hour:
Yeah, we have had similar experiences. Even if this can't be done
for every release or for every data type, bringing over statistics
from the old release as a starting point would really help minimize
downtime on large databases.
Of course, release docs should indicate which statistics *won't* be
coming across, and should probably recommend a database ANALYZE or
VACUUM ANALYZE be done when possible.
-Kevin
In response to
Responses
pgsql-hackers by date
Next :From: Alvaro HerreraDate: 2012-03-13 14:34:16Subject : Re: pg_upgrade and statisticsPrevious :From : Tom LaneDate : 2012-03-13 14:28:32Subject : Re: Explicitly specifying use of IN/OUT variable in PL/pgSQL functions
