Re: Grouping-by appropriate values from external docu
> Either "use a key", or "use a product whose optimizer does automatic > indexing" - like Saxon-SA (shameless plug). I did think while writing that, that I was opening a large door for you to jump through:-) It actually makes it hard to give general advice: On the whole I assume (when writing answers, if not in my own code) that there is no optimisation going on. It doesn't (normally) do any harm if people write an "efficient" version rather than an "inefficient" version even if in some cases a smart optimiser actually takes the inefficient idiom and rewrites it to something that turns out to be more efficient than the native "efficient" version. (I think that you do this for some // idioms). David ________________________________________________________________________ This e-mail has been scanned for all viruses by Star. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________
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