RE: An XQuery data model question...

> 
> The second example under Constructing Sequences in the 1.0 draft
> (http://www.w3.org/TR/xquery/#construct_seq) shows a nested 
> list that's almost identical to your own:
> 
>    (10, (1, 2), (), (3, 4))
> 
> It does indeed evaluate to:
> 
>    10, 1, 2, 3, 4
> 

And of course the practical application of this is that ($a, $b)
concatenates two sequences or appends an item to a sequence.

Michael Kay