Hi guys,
select schemaname,relname,n_live_tup, n_dead_tup from pg_stat_all_tables where relname = 'parts';
schemaname relname n_live_tup n_dead_tup
---------- ------------- ---------- ----------
public parts 191623953 182477402
See the large number of dead_tup?
My autovacuum parameters are:
"autovacuum_vacuum_threshold" : "300",
"autovacuum_analyze_threshold" : "200",
"autovacuum_vacuum_scale_factor" : "0.005",
"autovacuum_analyze_scale_factor" : "0.002",
Table size: 68 GB
Why does that happen? Autovacuum shouldn't take care of dead_tuples?
Because of that the table is very slow...
When I do a select on that table it doesn't use an index, for example:
\d parts;
"index_parts_id" btree (company_id)
"index_parts_id_and_country" btree (company_id, country)
explain select * from parts WHERE company_id = 12;
Seq Scan on parts (cost=0.00..6685241.40 rows=190478997 width=223)
Filter: (company_id = 12)
Thanks
Patrick
