Andrew Dunstan <andrew(at)dunslane(dot)net> writes:
> Further data point - the expected result appears when I set the sleep
> interval at 1 minute, but not at 40 secs. That does indicate that the
> stats collector is actually running and doing its job (kinda).
Hmm ... maybe the intentional sleep in the stats collector is delaying
much longer than it is supposed to?
regards, tom lane