Matteo <sgala@sgala.com> writes:
> INFO: --Relation public.active_sessions_split--
> INFO: Index active_sessions_split_pkey: Pages 91838; Tuples 5381: Deleted 31.
> CPU 4.26s/0.47u sec elapsed 135.47 sec.
> INFO: Index k_asp_changed: Pages 46192; Tuples 5381: Deleted 31.
> CPU 2.32s/0.25u sec elapsed 34.94 sec.
> INFO: Removed 31 tuples in 6 pages.
> CPU 0.00s/0.00u sec elapsed 0.01 sec.
> INFO: Pages 78376: Changed 4, Empty 0; Tup 5381: Vac 31, Keep 0, UnUsed 615471.
> Total CPU 9.93s/1.13u sec elapsed 186.68 sec.
I'd try a dump/reload or CLUSTER to get the table back down to a
reasonable size. In future, try vacuuming it more often.
regards, tom lane