On Thu, Dec 12, 2013 at 4:13 PM, Jeff Janes <jeff.ja...@gmail.com> wrote:
>> Well, why not take a supersample containing all visible tuples from N
>> selected blocks, and do bootstrapping over it, with subsamples of M
>> independent rows each?
> Bootstrapping methods generally do not work well when ties are significant
> events, i.e. when two values being identical is meaningfully different from
> them being very close but not identical.

Yes, that's why I meant to say (but I see now that I didn't) that it
wouldn't do much for n_distinct, just the histogram.

Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org)
To make changes to your subscription:

Reply via email to