I guess I need to clarify a little bit here. > > > / > > | > > +--/USA > > +--*Statistics > > | | > > | +--<California> > > | | > > | +--<BayArea> > > | | > > | +--<Temperature> > > | > > +--/California > > | > > +--*BayArea (B) > > | > > +--<Temperature> > >
The 'BayArea' in my original example is a XML node. It is not at the file level. So, the tree is more like following when I say both query are equal to each other. The '*Statistics' is just a meta information. > > > / > > | > > +--/USA > > +--<California> > > | | > > | +--<BayArea> > > | | > > | +--<Temperature> > > | > > +--/California > > | > > +--<BayArea> > > | > > +--<Temperature> > > Lixin
