Dan,
> INFO: vacuuming "public.forecastelement"
> INFO: "forecastelement": found 93351479 removable, 219177133 nonremovable
The high number of nonremovable above probably indicates that you have a
transaction being held open which prevents VACUUM from being effective.
Look for long-hung processes and/or transaction management errors in your
client code.
--
-Josh Berkus
Aglio Database Solutions
San Francisco