Oleg Bartunov <oleg@sai.msu.su> writes:
> I tried to see io statistics, but it was weird in 8.0X and in 8.1dev I still
> don't understand it :)
We aren't yet updating the io statistics for bitmap scans properly.
There was a thread about this but it petered out without any resolution
about what we should do ...
regards, tom lane