| From: | Bruce Momjian <bruce(at)momjian(dot)us> |
|---|---|
| To: | Kevin Grittner <kgrittn(at)ymail(dot)com> |
| Cc: | Andres Freund <andres(at)2ndquadrant(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Karsten Hilbert <Karsten(dot)Hilbert(at)gmx(dot)net>, "Hilbert, Sebastian" <Sebastian(dot)Hilbert(at)gmx(dot)net>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: [GENERAL] pg_upgrade ?deficiency |
| Date: | 2013-11-22 23:20:38 |
| Message-ID: | 20131122232038.GF32176@momjian.us |
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| Lists: | pgsql-general pgsql-hackers |
On Fri, Nov 22, 2013 at 01:55:10PM -0800, Kevin Grittner wrote:
> It does nothing about pg_upgrade, which is sort of a separate
> issue. My inclination is that connections to the new cluster
> should set this and connections to the old should not.
It is going to be tricky to conditionally set/reset an environment
variable for default_transaction_read_only for old/new clusters. We
never write to the old cluster, so I am not sure setting/resetting
default_transaction_read_only is needed.
--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com
+ Everyone has their own god. +
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