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
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TIP 9: the planner will ignore your desire to choose an index scan if your
joining column's datatypes do not match