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RE: Testing position of parent

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> You said:      test="parent::lg[not(preceding-sibling::*)]"
> David C. said: test="not(parent::lg[preceding-sibling::*])"
> 
> Will there be any performance or other tradeoffs to these two
> expressions?  Are there any general guidelines for understanding the
> performance differences between two expressions like these?

The only way to find out is to try it. It's likely to depend on which
processor you're using (and which version). And it's not likely to make a
big difference.

Mike Kay


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