On Tue, Nov 21, 2017 at 4:09 PM, Kyotaro HORIGUCHI <horiguchi.kyot...@lab.ntt.co.jp> wrote: > By the way I'm uneasy that the 'last_vacuum_index_scans' (and > vacuum_fail_count in 0002 and others in 0003, 0004) is mentioning > both VACUUM command and autovacuum, while last_vacuum and > vacuum_count is mentioning only the command. Splitting it into > vacuum/autovaccum seems nonsense but the name is confusing. Do > you have any idea?
Hm. I think that you should actually have two fields, one for manual vacuum and one for autovacuum, because each is tied to respectively maintenance_work_mem and autovacuum_work_mem. This way admins are able to tune each one of those parameters depending on a look at pg_stat_all_tables. So those should be named perhaps last_vacuum_index_scans and last_autovacuum_index_scans? -- Michael
