2015-12-24 8:34 GMT+01:00 Marcus Engene <meng...@engene.se>: > On 24/12/15 07:13, Pavel Stehule wrote: > > Hi > > 2015-12-24 8:05 GMT+01:00 Marcus Engene <meng...@engene.se>: > >> Hi, >> >> Are there highly efficient C extensions out there for math operations on >> arrays? Dot product and whatnot. >> > > what you mean "highly efficient" ? > > > Implemented as a C module so I wont have to unnest or plpgsql. >
ok, I don't know any extension that calculate euclid distance, but it should be trivial in C - if you don't need to use generic types and generic operations. Pavel > Kind regards, > Marcus > >
