I see - nice! Still trying to wrap my head around it to generalize, but
I see your point.
-Mike
On 03/28/2013 02:22 PM, daniela florescu wrote:
Not in the general case of such pattern -- because of cardinality.
(I told you XQuery is twisted :-)
Imagine that the function would have looked like this instead of the one I
wrote:
declare function foo($x)
{
if ($x/@a) then ($x, $x) else<b/>
};
then count(...) of the total result is different !
:-)
Dana
Yes, that is twisted for sure. But isn't it also equivalent to:
for $x in Blah1
for $y in Blah2
for $z in foo($y)[. is .]
return $x
?
not that that really makes any difference, in some sense, but given the problem
as stated, I don't think a where clause is required
--
Michael Sokolov
Senior Architect
Safari Books Online
_______________________________________________
[email protected]
http://x-query.com/mailman/listinfo/talk
--
Michael Sokolov
Senior Architect
Safari Books Online
_______________________________________________
[email protected]
http://x-query.com/mailman/listinfo/talk
