Re: pg_autovacuum seems to be a neat freak and cleans way too much

>>>>> "BH" == Brian Hirt <bhirt@mobygames.com> writes:

BH> reltuples in pg_class is defined as a real,  reltuples in
BH> pg_autovacuum  is defined as an int.   the query used to get reltuples
BH> returns  scientific notation for my larg tables, '4.06927e+06' for the
BH> one i  mention below.    pg_autovacuum happily converts that to a '4'
BH> by doing  atoi('4.06927e+06'), which is why it's all fubar for my
BH> large tables  with over a million tuples.

Wow.  What a difference the CVS pg_autovacuum makes in this case.  I
was wondering why my large tables were vacuumed *every* iteration
thru, even though I set the churn rate to 3.0.  It thought that my 150
million+ row table had 1 row in it!  With the latest pg_autovacuum it
gets the numbers right.  This one was worse than when we had the
overflow in the time computation causing it to sleep forever between
iterations... :-)

For anyone with large tables using pg_autovaccum, you *have* to update
to the latest version.

Thanks for starting this thread.  I really is making a big difference
in my performance no having to run vacuum all the time.  I was
beginning to think my table churn was much worse than it really is...

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