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Re: XPath expression that yields the same resultasxsl

Subject: Re: XPath expression that yields the same resultasxsl:for-each-group?
From: "Costello, Roger L. costello@xxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>
Date: Thu, 30 May 2019 21:46:26 -0000
 Re: XPath expression that yields the same  resultasxsl
Hi Folks,

Some fun queries ...

Context Node: the Test element (root element).

Collect the set of row elements and store them in an XSLT variable:

<xsl:variable name="rows" select="row" as="element(row)*" />

Group the rows using the composite key ARPT__IDENT | TRM__IDENT and store the
groups in an XSLT variable:

<xsl:variable name="groups" as="array(element(row))*" select="
    let $keys :=
        distinct-values($rows/concat(ARPT__IDENT, '|', TRM__IDENT))
        for $i in $keys
            array {$rows[$i = concat(ARPT__IDENT, '|', TRM__IDENT)] }

How many groups are there?

Query: count($groups)
Result: 2

What is the content of the first group?

Query: $groups[1]

What is the content of the second group?

Query: $groups[2]

Wicked cool!

Thanks for all your help!


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