I'm not working in J, here. I'm working in [redshift] SQL.
Still interested? -- Raul On Thu, Dec 29, 2016 at 12:22 PM, Robert Bernecky <[email protected]> wrote: > If I understand your problem correctly, then any decent optimizing > functional array language compiler would automatically lift the date > conversion > (to constant) out of any loops, and give you the same performance > as if you had hand-coded the constant. > > If you email me the relevant code (or suitable fragment thereof), > I'll attempt to prove my claim. > > Bob > > On 2016-12-29 11:40 AM, Raul Miller wrote: >> >> On Thu, Dec 29, 2016 at 6:39 AM, Jack Andrews <[email protected]> wrote: >>> >>> For those who've used static typed languages, have you ever programmed in >>> a >>> dynamic typed language said to yourself, "static types would have >>> prevented >>> that problem"? Just curious. >> >> Rarely, but yes. >> >> Currently, though, I'm struggling with a problem where using a >> reasonable way of expressing a date makes a calculation take 15 >> minutes while hard coding the date as a constant makes the same >> calculation take 33 seconds. (And I need to implement this so it runs >> every hour - or, preferably, every five minutes - on an ongoing >> basis.) >> >> I expect there's a lot of static type skeletons buried here. >> > > -- > Robert Bernecky > Snake Island Research Inc > 18 Fifth Street > Ward's Island > Toronto, Ontario M5J 2B9 > > [email protected] > tel: +1 416 203 0854 > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
