Re: [xsl] Performance problems with grouping

[David Carlisle <davidc@xxxxxxxxx>]

  - I combine two xml files to one (by means of the document() function)
  - this temporary xml file is transformed into a node-set by means of the 
  node-set() extension function


incidentally do yor need node-set here?
It depends on th ecomplexity of your combination, for example

select="document('a.xml')|document('b.xml')"

makes a node set of two documents without needing any extension
function.

David

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