HI --
In the process of trying to find the differences between two collections of schemas (the XML differences, as opposed to the not-semantically-meaningful differences in the order of the definitions), I find myself wanting to stick UIDs on everything. (So I can go "oh, this element node is different, but it has descendant elements UIDs also in the list of differences, I don't want this one, the descendants are more precise" (because if I don't do something like this, I'm getting xsd:schema every time...))
I haven't done anything with updating expressions before.
By itself, in the GUI,
for $x in /descendant-or-self::* return insert node(attribute UID {generate-id($x)}) into $x
works. Since I would like everything in one query, with a little flailing I've got as far as
let $new as document-node()+ := for $each in db:open($newName) return copy $temp := $each modify ( for $x in $temp/descendant-or-self::* return insert node(attribute UID {generate-id($x)}) into $x ) return $temp
return $new
And there are all the elements with UID attributes associated with them.
Is there a better way to do this?
Thanks! Graydon