Subject: RE: [xsl] flatened hiearchies for xslt2 From: "Michael Kay" <mike@xxxxxxxxxxxx> Date: Thu, 8 Mar 2007 17:02:20 -0000 |
> I tend to think of for-each group as a sane syntax > added at xslt2 for the muenchian grouping idiom that Dimitre > showed, which works well, but only looks normal as its posted > once a week for over half a decade to this list:-). No idea > if the internal implementations are similar though but that's > processor specific detail... for-each-group is much more generalized than the Muenchian method because the population of nodes to be grouped can be anything, it's not necessarily all the nodes in one document that match some pattern. That makes it difficult to use fixed document-level indexes except in special cases. I wouldnt expect to see much difference in performance (speed or memory) but I'd me interested in any measurements. Michael Kay http://www.saxonica.com/
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