thanks for the reply.
Restarting the DB and running vacuum again did recover some space. But still
there are dead rows.
vacuum full verbose chnges_23_21;
INFO: vacuuming "public.chnges_23_21"
INFO: "chnges_23_21": found 8436850 removable, 239750 nonremovable row
versions in 89460 pages
DETAIL: 0 dead row versions cannot be removed yet.
CPU 1.38s/0.36u sec elapsed 4.82 sec.
VACUUM
And my pg_prepared_xacts is empty.
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Thanks,
Rajan.
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