Tom Lane wrote:
> The information we've seen says that the only statistically
> reliable way
> to arrive at an accurate n_distinct estimate is to examine most of the
> table :-(.
> IIRC I picked an equation out of the literature partially on the basis
> of it being simple and fairly cheap to compute...
I'm very curious about this - can you recall where you got this, or
at least point me to where in the code this happens?
Thanks.
- John Burger
MITRE