um
values
and the histogram of the 100 distinct values).
Marko Ristola
Greg Stark wrote:
"Dave Held" <[EMAIL PROTECTED]> writes:
Actually, it's more to characterize how large of a sample
we need. For example, if we sample 0.005 of disk pages, and
get an estimate, and then
find it out, by other means than checking at least two million
rows?
This means, that the user should have a possibility to tell the lower
bound for the number of rows for sampling.
Regards,
Marko Ristola
Tom Lane wrote:
Josh Berkus writes:
Overall, our formula is inherently conservati
