[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message]

Re: How to efficiently obtain the first 10 records of

Subject: Re: How to efficiently obtain the first 10 records of a file with over 2 million records?
From: "Martin Honnen martin.honnen@xxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>
Date: Wed, 19 Jul 2023 15:37:53 -0000
Re:  How to efficiently obtain the first 10 records of
On 19.07.2023 17:16, Roger L Costello costello@xxxxxxxxx wrote:

I have an XML file containing over 2 million <record> elements. I want to
obtain the first 10 <record> elements.

Here's how I did it:

<xsl:for-each select="/Document/record[position() le 10]">
     <xsl:sequence select="."/>

I ran it and it took a long time to complete. I am guessing that the XSLT
processor is iterating over all 2 million <record> elements. Yes?  How to
write the XSLT code so that the XSLT processor stops iterating upon processing
the first 10 <record> elements?

Using XSLT 3.0 and Saxon EE with streaming you could use e.g.

<xsl:mode streamable="yes"/>

<xsl:template match="/">

B <xsl:copy-of select="Document/record[position() le 10]"/>


I am not sure whether you need an explicit

<xsl:mode streamable="yes"/>

<xsl:template match="/">

B <xsl:iterate select="Document/record">

B B B <xsl:copy-of select="."/>

B B <xsl:if test="position() eq 10">

B B B B <xsl:break/>

B B </xsl:if>

B </xsl:iterate>


to ensure that Saxon stops processing after the 10 records, run from the command line with -t and look for an early exit message to confirm.

Current Thread


Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced!

Buy Stylus Studio Now

Download The World's Best XML IDE!

Accelerate XML development with our award-winning XML IDE - Download a free trial today!

Don't miss another message! Subscribe to this list today.
First Name
Last Name
Subscribe in XML format
RSS 2.0
Atom 0.3
Site Map | Privacy Policy | Terms of Use | Trademarks
Free Stylus Studio XML Training:
W3C Member
Stylus Studio® and DataDirect XQuery ™are products from DataDirect Technologies, is a registered trademark of Progress Software Corporation, in the U.S. and other countries. © 2004-2013 All Rights Reserved.