> - type, and access into a varwidth array is O(n), so the sorting > - step you've got here is O(n^2). It might help to use unnest() > - instead of this handmade version of it ...) > > unnest() is 8.4 only, right? > > I'm actually probably just going to install R and use the median > function from that. (I was hoping to avoid installing all of R) > [Spotts, Christopher] We have large data numeric data sets that we do medians over and due to performance reasons, we eventually found it useful to take a smaller random sample and median that...it was close enough for us. Just a thought. Chris -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
