On 8 April 2018 at 15:34, Andrew Gierth <andrew@tao11.riddles.org.uk> wrote:
> You can't ever assume that data you just inserted will become
> all-visible just because you just vacuumed the table, unless you know
> that there is NO concurrent activity that might have a snapshot (and no
> other possible reason why OldestXmin might be older than your insert).
Thanks. I got it. It just slipped my slightly paranoid and sleep deprived mind.
I've attached my proposed fix for the unstable regression tests. I
removed the vacuums I'd added in the last version and commented why
we're doing set enable_indesonlyscan = off;
--
David Rowley http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
