Subject: RE: [xsl] XSLT sort From: "Michael Kay" <mhk@xxxxxxxxx> Date: Thu, 20 May 2004 22:37:10 +0100 |
> Im trying to sort a large XML document. I used this XSLT > before but it > takes a very long time to sort a big document, with big I > mean around 16 000 lines. 16K lines doesn't sound very big to me. It shouldn't be a problem. But what do you mean by "a very long time": 10 seconds? 10 hours? What is the performance requirement? > > <xsl:stylesheet version="1.0" > xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> > <xsl:output method="xml" indent="yes"/> > <xsl:strip-space elements="*"/> > > <xsl:template match="Katalog"> > <xsl:copy> > <xsl:apply-templates select="Person"> > <xsl:sort select="@enamn"/> > </xsl:apply-templates> > </xsl:copy> > </xsl:template> > > <xsl:template match="Person"> > <xsl:copy-of select="."/> > </xsl:template> > </xsl:stylesheet> > > I heard that it possible to get better performance if I put > the nodes in a key and sorted on the key. Keys improve the performance of finding a node within a large document based on the value of some attribute (or other property). You aren't doing that here, so they won't help. Michael Kay
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