On 12/29/13 2:27 AM, bearophile wrote:
But another common need is to group by equivalent classes using an associative array. Both C# and Clojure have this functionality (on LINQ and in the functions toolkit). This means that a "hashGroup" builds an associative array inside and returns it.See also: http://d.puremagic.com/issues/show_bug.cgi?id=5968 http://d.puremagic.com/issues/show_bug.cgi?id=9842
I think hash joins should come first. Andrei
