Re: [GENERAL] 9.4.1 -> 9.4.2 problem: could not access status of transaction 1

On Thu, Jun 04, 2015 at 05:29:51PM -0400, Robert Haas wrote:
> Here's a new version with some more fixes and improvements:

I read through this version and found nothing to change.  I encourage other
hackers to study the patch, though.  The surrounding code is challenging.

> With this version, I'm able to see that when you start up a
> 9.3.latest+this patch with a cluster that has a bogus value of 1 in
> relminmxid, datminmxid, and the control file, autovacuum vacuums
> everything in sight, all the values get set back to the right thing,
> and the next checkpoint enables the member-wraparound guards.

Nice.