Re: number of updated or deleted tuples needed to trigger a VACUUM in any one table

[Achilleas Mantzios - cloud <a.mantzios@xxxxxxxxxxxxxxxxxxxx>]

On 11/7/24 16:30, Ron Johnson wrote:

https://www.postgresql.org/docs/current/runtime-config-autovacuum.html

autovacuum_vacuum_threshold (integer) 

Specifies the minimum number of updated or deleted tuples needed to trigger a VACUUM in any one table.

Are the number of updated and deleted tuples since the last vacuum exposed anywhere, like n_ins_since_vacuum is exposed?

By /usr/local/src/postgresql-17.0/src/backend/postmaster/autovacuum.c:3026 :

               reltuples = classForm->reltuples;
               vactuples = tabentry->dead_tuples;
               instuples = tabentry->ins_since_vacuum;
               anltuples = tabentry->mod_since_analyze;

So, this number should be the pg_stat_all_tables.n_dead_tup

I've Googled with no luck.

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