On Mon, Dec 16, 2013 at 6:00 AM, Ants Aasma <ants.aa...@eesti.ee> wrote:
> On Dec 15, 2013 6:44 PM, "Tom Lane" <t...@sss.pgh.pa.us> wrote: > > David Rowley <dgrowle...@gmail.com> writes: > > > I've attached an updated patch which includes some documentation. > > > I've also added support for negfunc in CREATE AGGREGATE. Hopefully > that's > > > an ok name for the option, but if anyone has any better ideas please > let > > > them be known. > > > > I'd be a bit inclined to build the terminology around "reverse" instead > of > > "negative" --- the latter seems a bit too arithmetic-centric. But that's > > just MHO. > > To contribute to the bike shedding, inverse is often used in similar > contexts. > I guess it's not really bike shedding, most of the work I hope is done, so I might as well try to get the docs polished up and we'd need a consensus on what we're going to call them before I can get that done. I like both of these better than negative transition function and I agree negative implies arithmetic rather than opposite. Out of these 2 I do think inverse fits better than reverse, so I guess that would make it "inverse aggregate transition function". Would that make the CREATE AGGREGATE option be INVFUNC ? Any other ideas or +1's for any of the existing ones? Regards David Rowley > -- > Ants Aasma >
