Tom,
"The issue can be ameliorated by, after upgrading, vacuuming all tables
in all databases while having vacuum_freeze_table_age set to zero. "
Why not say:
"This issue can be ameliorated by, after upgrading, running a
database-wide VACUUM FREEZE."
Or is there a difference in this case? If so, what?
--
Josh Berkus
PostgreSQL Experts Inc.
http://pgexperts.com