Re: Further pg_upgrade analysis for many tables
От | Bruce Momjian |
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Тема | Re: Further pg_upgrade analysis for many tables |
Дата | |
Msg-id | 20121109003340.GA26605@momjian.us обсуждение исходный текст |
Ответ на | Re: Further pg_upgrade analysis for many tables (Jeff Janes <jeff.janes@gmail.com>) |
Ответы |
Re: Further pg_upgrade analysis for many tables
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Список | pgsql-hackers |
On Thu, Nov 8, 2012 at 03:46:09PM -0800, Jeff Janes wrote: > On Wed, Nov 7, 2012 at 6:17 PM, Bruce Momjian <bruce@momjian.us> wrote: > > As a followup to Magnus's report that pg_upgrade was slow for many > > tables, I did some more testing with many tables, e.g.: > > > ... > > > > Any ideas? I am attaching my test script. > > Have you reviewed the thread at: > http://archives.postgresql.org/pgsql-performance/2012-09/msg00003.php > ? > > There is a known N^2 behavior when using pg_dump against pre-9.3 servers. I am actually now dumping git head/9.3, so I assume all the problems we know about should be fixed. -- Bruce Momjian <bruce@momjian.us> http://momjian.us EnterpriseDB http://enterprisedb.com + It's impossible for everything to be true. +
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