Hi 2015-12-24 8:05 GMT+01:00 Marcus Engene <[email protected]>:
> Hi, > > Are there highly efficient C extensions out there for math operations on > arrays? Dot product and whatnot. > what you mean "highly efficient" ? PostgreSQL executor is interpret - so in almost all cases the special optimizations has not big sense. If you take few us, you will lost in executor. > > Example usecase: sort an item by euclid distance. > some is in intarray http://www.postgresql.org/docs/9.4/static/intarray.html Regards Pavel > > Kind regards, > Marcus > > > > -- > Sent via pgsql-general mailing list ([email protected]) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-general >
