On 12/06/2011 09:00 PM, Tom Lane wrote:
> Mario Splivalo <mario.splivalo@megafon.hr> writes:
>> I have 8.4.8 on producion and 8.4.9 on test, could that explain the
>> difference in plans chosen?
>
> I'd wonder first if you have the same statistics settings on both.
> The big problem here is that the estimation of the join size is bad
> (8588 versus 0).
They do, I guess. I did rsync postgres datadir from the prod server to
the test server. The only difference is that prod server was a bit more
loaded than the test server.
Mario