Re: A few user-level questions on Streaming Replication and pg_upgrade

On Wed, Jul 20, 2011 at 3:29 PM, Bruce Momjian <bruce@momjian.us> wrote:
> Robert Haas wrote:
>> On Wed, Jul 20, 2011 at 2:53 PM, Bruce Momjian <bruce@momjian.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.

OK, fair enough.  But I think the likelihood is extremely low.

--
Robert Haas
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