2010/8/18 David Fetter <da...@fetter.org>: > 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. >
I didn't think about some special median - this proposal is just about aggregates with large a transistent data. Then the access to tuplestore can be very usefull. > Otherwise, it seems like a more reasonable thing to make the medians > special case code. yes, minimally for this moment. Regards Pavel > > 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
