On Fri, Jul 23, 2021 at 05:47:18PM -0700, Peter Geoghegan wrote: > > I could perhaps see corruption happening if pg_control's oldest xid > > value was closer to the current xid value than it should be, but I can't > > see how having it 2-billion away could cause harm, unless perhaps > > pg_upgrade itself used enough xids to cause the counter to wrap more > > than 2^31 away from the oldest xid recorded in pg_control. > > > > What I am basically asking is how to document this and what it fixes. > > ISTM that this is a little like commits 78db307bb2 and a61daa14. Maybe > take a look at those?
Agreed. I just wanted to make sure I wasn't missing an important aspect of this patch. Thanks. -- Bruce Momjian <br...@momjian.us> https://momjian.us EDB https://enterprisedb.com If only the physical world exists, free will is an illusion.
