Florian Helmberger <f...@25th-floor.com> writes:
> I'm running a production database with PostgreSQL 9.0.3 (64-bit) on 
> Debian 5.0.4 and have an issue with a TOAST table and far to frequent 
> autovacuum runs.

> I think I've pinned the problem down to the values pg_class holds for 
> the affected TOAST table:

> relpages  | 433596
> reltuples | 1868538

> These values are significantly too low. Interestingly, the autovacuum 
> logout reports the correct values:

>       pages: 0 removed, 34788136 remain
>       tuples: 932487 removed, 69599038 remain

> but these aren't stored in pg_class after each run.

That's exceedingly weird.  Do the pg_stat_all_tables columns update
after autovacuums on that table?

                        regards, tom lane

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