[Bug 8724] [XQuery 1.1] Function items need to know if they are non-deterministic

http://www.w3.org/Bugs/Public/show_bug.cgi?id=8724





--- Comment #8 from Michael Dyck <jmdyck@ibiblio.org>  2010-02-06 03:26:23 ---
(In reply to comment #7)
> (In reply to comment #6)
> > 
> > Consider a function item (A) whose function's body is basically a dynamic
> > function invocation (DFI). Since the determinism of the function item (B)
> > invoked by the DFI can't necessarily be determined statically, neither can the
> > determinism of the original function item (A).
> 
> But the determinism of a dynamic function invocation can always be statically
> determined - just not always accurately.

Right. And that inaccuracy propagates up to function item A. I.e., the
determinism that one statically infers for A is not necessarily as precise as
the actual determinism of A. I.e., you cannot always statically ascertain the
determinism of a function item, which was my original point.


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Received on Saturday, 6 February 2010 03:26:26 UTC