How to get duplicate record as single record in xslt - xslt

Question

I am struggling to get desired output result in xslt:
I want something Like I have 2 records in each records i have multiple child node I have to check if the child element values are duplicated in one record or not if yes i should only create 1 record with respect to duplicate record and remaining records for unique ones,
My input file looks like:
<Records count="2">
<Record id="parentRecord">
<Record id="childRecord1">
<Record id="childRecord2">
<Field id="childRecord2Field">Technology Asset Management</Field>
</Record>
</Record>
<Record id="childRecord1">
<Record id="childRecord2">
<Field id="childRecord2Field1">Inadequate Information Security Practices</Field>
</Record>
</Record>
<Record id="childRecord1">
<Record id="childRecord2">
<Field id="childRecord2Field1">Inadequate Information Security Practices</Field>
</Record>
</Record>
</Record>
<Record id="parentRecord">
<Record id="childRecord1">
<Record id="childRecord2">
<Field id="childRecord2Field">Technology Asset Management</Field>
</Record>
</Record>
<Record id="childRecord1">
<Record id="childRecord2">
<Field id="childRecord2Field1">Inadequate Information Security Practices</Field>
</Record>
</Record>
<Record id="childRecord1">
<Record id="childRecord2">
<Field id="childRecord2Field">Technology Asset Management</Field>
</Record>
</Record>
</Record>
</Records>
I am Expecting :
<Records>
<Record id="parentRecord">
<Record id="childRecord1">
<Record id="childRecord2">
<Field id="childRecord2Field">Technology Asset Management</Field>
</Record>
</Record>
<Record id="childRecord1">
<Record id="childRecord2">
<Field id="childRecord2Field1">Inadequate Information Security Practices</Field>
</Record>
</Record>
</Record>
<Record id="parentRecord">
<Record id="childRecord1">
<Record id="childRecord2">
<Field id="childRecord2Field">Technology Asset Management</Field>
</Record>
</Record>
<Record id="childRecord1">
<Record id="childRecord2">
<Field id="childRecord2Field1">Inadequate Information Security Practices</Field>
</Record>
</Record>
</Records>
Here is my xslt:
<xsl:template match="Records">
<Records>
<xsl:for-each select="Record[id='parentRecord']">
<xsl:variable name="MatchedChildRecord2Value" select="Record/Record/Field[id='childRecord2Field']"> //I am trying to store all the field values in paraent node
<xsl:for-each select="Record/Record/Field[id=childRecord2']/">
<xsl:choose>
<xsl:when test=".=$MatchedChildRecord2Value">
//Nothing I am doing
</xsl:when>
<xsl:otherwise>
<Record>
<Record id="childRecord1">
<Record id="childRecord2">
<Field>FieldRecordvalue</Field>
</Record>
</Record>
</xsl:otherwise>
</xsl:choose>
</xsl:for-each>
</xsl:for-each>
</Records>
</xsl:template>
Could you please help me out

Answer 1

I've tried it this way with XSLT3. I don't get the same result as what you indicated that you wanted, but I don't understand your result as there are duplicates within your result.
I've added an additional attribute count in order to show how many duplicates were folded into the result.
I get this result:
<Records>
<Record id="parentRecord" count="2">
<Record id="childRecord1" count="6">
<Record id="childRecord2" count="6">
<Field id="childRecord2Field" count="3">Technology Asset Management</Field>
<Field id="childRecord2Field1" count="3">Inadequate Information Security Practices</Field>
</Record>
</Record>
</Record>
</Records>
using this xslt3 stylesheet:
<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
version="3.0"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
exclude-result-prefixes="#all"
expand-text="yes">
<xsl:mode on-no-match="shallow-copy"/>
<xsl:output indent="yes" />
<xsl:template match="/Records">
<xsl:copy >
<xsl:call-template name="groupRecords" >
<xsl:with-param name="currentGroup" select="Record" />
</xsl:call-template >
</xsl:copy>
</xsl:template>
<xsl:template name="groupRecords" >
<xsl:param name="currentGroup" as="element()*" />
<xsl:for-each-group select="$currentGroup/self::Record" group-by="#id" >
<Record id="{current-grouping-key()}" count="{count(current-group())}" >
<xsl:call-template name="groupRecords" >
<xsl:with-param name="currentGroup" select="current-group()/*" />
</xsl:call-template>
</Record>
</xsl:for-each-group>
<xsl:for-each-group select="$currentGroup/self::Field" group-by="concat(#id, '##', text())" >
<Field id="{current-group()[1]/#id}" count="{count(current-group())}">{(current-group()/text())[1]}</Field>
</xsl:for-each-group>
</xsl:template>
</xsl:stylesheet>