- From: Lee Feigenbaum <lee@thefigtrees.net>
- Date: Fri, 13 Nov 2009 15:05:28 -0500
- To: Kjetil Kjernsmo <kjetil@kjernsmo.net>
- CC: public-rdf-dawg@w3.org
Kjetil Kjernsmo wrote: > On Friday 13. November 2009 14:01:31 Andy Seaborne wrote: >> I don't find the name COALESCE very helpful. > > I've been following the Semantics of SUM thread, since it looks like a > problem I've had, but I feel I haven't really grokked what COALESCE is > supposed to mean... So, I'll pose the stupid question: What is this suppose > to do? COALESCE (or whatever it's called) takes 1 or more arguments and returns the first of its arguments that is bound to a value (i.e. first argument that is not unbound and not a type error). Lee
Received on Friday, 13 November 2009 20:06:13 UTC