Fixed – bad data in the event/history tables.
Even though I told the upgrade wizard to not migrate historical data it did not like something.
KB1007453 was followed to truncate all data to 0 days.
I also ran this on the source server for good measure.
/opt/vmware/vpostgres/1.0/bin/psql -d VCDB vc
TRUNCATE TABLE vpx_event CASCADE;
Upgrade ran smooth.