Re: lastOverflowedXid does not handle transaction ID wraparound

> On Wed, Oct 20, 2021 at 04:00:35PM +0500, Andrey Borodin wrote:
> > 17 окт. 2021 г., в 21:55, Dmitry Dolgov <9erthalion6@gmail.com> написал(а):
> > I wonder what would be side
> > effects of clearing it when the snapshot is not suboverfloved anymore?
>
> I think we should just invalidate lastOverflowedXid on every XLOG_RUNNING_XACTS if subxid_overflow == false. I can't
finda reason not to do so.
 

From what I understand that was actually the case, lastOverflowedXid was
set to InvalidTransactionId in ProcArrayApplyRecoveryInfo if
subxid_overflow wasn't set. Looks like 10b7c686e52a6d1bb has changed it,
to what I didn't pay attention originally.