I would like to merge 2 node-sets together using XQuery via the saxon:compile-query/saxon:query. Ideally I would like to use the 2nd argument (context-item) as my 1st node-set and then I would like to set another node-set to the XQuery too. This doesn't appear to be possible using the 3rd argument as this seems to only cater for atomic values. One idea I had was to put both node-set sources into a new root/parent and then pass it as the 2nd the argument (context-item). This does work but wondering if there is a better approach here? Using Saxon EE 9.9
I have now tried what I suggested in a comment, i.e. to pass in an array of two nodes as the context item, it seems to work fine:
<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
version="3.0"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:saxon="http://saxon.sf.net/"
exclude-result-prefixes="#all"
expand-text="yes">
<xsl:param name="xquery1" as="xs:string" expand-text="no"><![CDATA[<root>{
for $node in (?1/*, ?2/*)
group by $name := node-name($node)
return
element { $name} { $node/node() }
}</root>]]></xsl:param>
<xsl:output method="xml" indent="yes"/>
<xsl:template match="/" name="xsl:initial-template">
<xsl:variable name="node1"><foo>foo 1</foo><bar>bar 1</bar></xsl:variable>
<xsl:variable name="node2"><foo>foo 2</foo><bar>bar 2</bar></xsl:variable>
<xsl:variable name="compiled-xquery" select="saxon:compile-query($xquery1)"/>
<xsl:sequence select="saxon:query($compiled-xquery, [$node1, $node2])"/>
</xsl:template>
</xsl:stylesheet>
Whether you need XQuery from XSLT 3 to merge nodes is a different question, I don't know what your requirements are exactly, there is xsl:merge.