RE: [xsl] for-each-group

Subject: RE: [xsl] for-each-group
From: cknell@xxxxxxxxxx
Date: Tue, 27 Mar 2007 15:35:16 -0400
<?xml version="1.0"?>
<xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
  <xsl:strip-space elements="*" />
  <xsl:output method="xml" indent="yes" encoding="UTF-8" />

    <xsl:template match="/">
        <xsl:apply-templates />
    </xsl:template>

	<xsl:template match="products">
		<products>
		<xsl:for-each-group select="product" group-by=".">
		  <product><xsl:value-of select="." /></product>
		</xsl:for-each-group>
		</products>
	</xsl:template>

</xsl:stylesheet>
-- 
Charles Knell
cknell@xxxxxxxxxx - email



-----Original Message-----
From:     Robert C Corsaro <rcorsaro@xxxxxxxxxxx>
Sent:     Tue, 27 Mar 2007 14:24:48 -0500
To:       xsl-list@xxxxxxxxxxxxxxxxxxxxxx
Subject:  [xsl] for-each-group

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I'm trying to transform the following XML:

<products>
  <product>1</product>
  <product>1</product>
  <product>1</product>
  <product>1</product>
  <product>1</product>
  <product>1</product>
  <product>1</product>
  <product>2</product>
  <product>2</product>
  <product>2</product>
  <product>2</product>
  <product>2</product>
  <product>2</product>
  <product>2</product>
  <product>2</product>
  <product>2</product>
</products>

to:

<products>
  <product>1</product>
  <product>2</product>
</products>

using:

<products>
<xsl:for-each-group select="/products" group-by="product">
  <product><xsl:value-of select="product" /></product>
</xsl:for-each-group>
</products>

What am I doing wrong?  Basically I want something similar to 'GROUP BY'
 in SQL.
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