| From: | Bruce Momjian <bruce(at)momjian(dot)us> |
|---|---|
| To: | Robert Haas <robertmhaas(at)gmail(dot)com> |
| Cc: | Gurjeet Singh <singh(dot)gurjeet(at)gmail(dot)com>, PGSQL Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: A few user-level questions on Streaming Replication and pg_upgrade |
| Date: | 2011-07-20 19:29:07 |
| Message-ID: | 201107201929.p6KJT7c28336@momjian.us |
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| Thread: | |
| Lists: | pgsql-general pgsql-hackers |
Robert Haas wrote:
> On Wed, Jul 20, 2011 at 2:53 PM, Bruce Momjian <bruce(at)momjian(dot)us> wrote:
> >> I am assuming that's a "yes" to both the directions: older -> newer , and
> >> newer -> older minor releases.
> >
> > Yes, I believe both directions would work unless we mentioned it the
> > release notes, in which cases it might not work, or might work older to
> > newer but newer to older.
>
> I don't see how this would get broken in a minor release. We'd have
> to change the WAL format or the tuple format, which is definitely not
> minor release material.
If there was a bug in the xlog stream content we might not be able to
fix it without breaking compatibility. Rare, but possible.
--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com
+ It's impossible for everything to be true. +
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