Andrew Dunstan <andrew(dot)dunstan(at)2ndquadrant(dot)com> writes:
> There seem to be a number of regression test failures involving deadlock
> resulting from this. e.g. on prion:
Yeah, see -hackers thread: <20190430070552(dot)jzqgcy4ihalx7nur(at)alap3(dot)anarazel(dot)de>
regards, tom lane