On Wed, Aug 18, 2010 at 04:10:18PM +0200, Pavel Stehule wrote: > 2010/8/18 David Fetter <da...@fetter.org>: > > Which median do you plan to implement? Or do you plan to implement > > several different medians, each with distinguishing names? > > my proposal enabled implementation of any "median like" function. But > if we implement median as special case of aggregate, then some basic > "median" will be implemented.
Apart from the medians, which "median-like" aggregates do you have in mind to start with? If you can provide examples of "median-like" aggregates that people might need to implement as user-defined aggregates, or other places where people would use this machinery, it will make your case stronger for this refactoring. Otherwise, it seems like a more reasonable thing to make the medians special case code. Cheers, David. -- David Fetter <da...@fetter.org> http://fetter.org/ Phone: +1 415 235 3778 AIM: dfetter666 Yahoo!: dfetter Skype: davidfetter XMPP: david.fet...@gmail.com iCal: webcal://www.tripit.com/feed/ical/people/david74/tripit.ics Remember to vote! Consider donating to Postgres: http://www.postgresql.org/about/donate -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
