Re: [xsl] finding out distinct node/values

Subject: Re: [xsl] finding out distinct node/values
From: Andrew Welch <andrew.j.welch@xxxxxxxxx>
Date: Wed, 10 Feb 2010 17:11:29 +0000

> <xsl:stylesheet version="1.0"
>  xmlns:xsl=""; >
>  <xsl:template match="/">.
>    <xsl:for-each select="/table/rows/row/name">
>      <xsl:if test="not(. = preceding::name)">
>        <xsl:copy-of select="."/>

While this is perfectly fine, it's worth being aware that its On^2....
in other words, as n (the number of elements that are selected)
increases by 1, it will have to check every other element in the
set.... which means it will perform badly for large values of n.

Andrew Welch

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