title: How to get distinct/unique attributes in xsl variable
body: <pre><code>&lt;xsl:variable name="Rows" select=" .. some stmt .." /&gt;
  &lt;xsl:for-each select="$Rows"&gt;
      &lt;xsl:value-of select="@ATTRNAME"/&gt;
  &lt;/xsl:for-each&gt;
  </code></pre>
  
  <p>Would like to know how to find 'Rows' with unique/distinct attribute 'ATTRNAME' [ in XSLT 1.0 ]. </p>