On Wed, Oct 18, 2023 at 4:06 PM Murthy Nunna <mnunna@xxxxxxxx> wrote:
Hi,
The first table in the following query resulted in age(c.relfrozenxid) = 148795396. But when I manually run vacuumdb command (vacuumdb -d db1 -t tab1) on that table it is not lowering the relfrozenxid. There is no indication in the pglog that vacuumdb failed.
SELECT c.oid::regclass
, age(c.relfrozenxid)
, pg_size_pretty(pg_total_relation_size(c.oid))
FROM pg_class c
JOIN pg_namespace n on c.relnamespace = n.oid
WHERE relkind IN ('r', 't', 'm')
AND n.nspname NOT IN ('pg_toast')
ORDER BY 2 DESC ;
I am wondering why vacuumdb is unable to lower relfrozenxid on this table? It seems to work on other tables though.
Thank you!
Check pg_stat_activity or pg_locks to see if there are any open transactions or locks on the table in question.
Keith
