xml-dev - Re: Query Languages for XML

[Paul Prescod <papresco@technologist.com>]

W. Eliot Kimber wrote:
> Or said another way, you don't need a standard for the control language
> (although it's useful to have one) if you have a standard for the data
> model to be controlled.

I would think that there are major optimization benefits to having a
standard query language. Each database vendor can take a complete query
describing  a node and choose the quickest way to find the node, vs.
passively waiting for each query component (e.g. get this
node-list....now reverse it...now find the first node of type
element....now check its GI etc. etc.).

 Paul Prescod

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