On Wed, Jul 5, 2017 at 8:34 AM, Jason Dusek <jason.du...@gmail.com> wrote:
> > > I can not argue these points with you; but Fortress is a good example of > imperative looking code that translates to a functional/declarative core; > as indeed is monadic or applicative code. LINQ is a more recent and > widespread example -- though not encompassing an entire language -- of > something that has an imperative form while being declarative under the > hood. Scala's for comprehensions -- more or less monad comprehensions --are > another. > But Linq effectively is a declarative language that's semi-SQL-like (I wish they used "project" instead of "select" but that's another question). I don't see Linq as semi-imperative. > > With regards to Spark, I assume for comprehensions are an important part > of the interface? > Nope. You have chained generators and you really need to watch what is parallelizable and what is not, and what is running on the partitions and what is running post-gathering/shuffling. Spark has no real facility for parallelising a comprehension. > > Kind Regards, > Jason > >> -- Best Wishes, Chris Travers Efficito: Hosted Accounting and ERP. Robust and Flexible. No vendor lock-in. http://www.efficito.com/learn_more
