在Biztalk Map中映射字段时避免父作用域中的重复项

<Root>
  <Records>
    <Record>
      <ID>1</ID>
      <Name>Alice</Name>
    </Record>
    <Record>
      <ID>2</ID>
      <Name>Bob</Name>
    </Record>
    <Record>
      <ID>1</ID>
      <Name>Alice</Name>
    </Record>
  </Records>
</Root>

<Root>
  <UniqueRecords>
    <!-- Mapped records will go here -->
  </UniqueRecords>
</Root>

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
  <xsl:output method="xml" indent="yes"/>

  <!-- Template to match the root element -->
  <xsl:template match="/">
    <Root>
      <UniqueRecords>
        <xsl:apply-templates select="//Record"/>
      </UniqueRecords>
    </Root>
  </xsl:template>

  <!-- Template to match each Record -->
  <xsl:template match="Record">
    <!-- Check if this record already exists in the output -->
    <xsl:if test="not(preceding-sibling::Record[ID=current()/ID and Name=current()/Name])">
      <Record>
        <ID><xsl:value-of select="ID"/></ID>
        <Name><xsl:value-of select="Name"/></Name>
      </Record>
    </xsl:if>
  </xsl:template>
</xsl:stylesheet>