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Bug #2435

closed

Equality fails due to type comparison

Added by Nick Evans over 8 years ago. Updated over 8 years ago.

Status:
Closed
Priority:
Normal
Assignee:
O'Neil Delpratt
Category:
Schema-Aware processing
Sprint/Milestone:
9.6.0.7
Start date:
2015-08-04
Due date:
% Done:

100%

Estimated time:
Legacy ID:
Applies to branch:
9.6
Fix Committed on Branch:
9.6
Fixed in Maintenance Release:
9.6.0.7
Platforms:

Description

Consider the following XSD:

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" 
           targetNamespace="http://www.xpathtest.com/test"
           xmlns:test="http://www.xpathtest.com/test"
           elementFormDefault="qualified">
  <xs:element name="comparables">
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="test:comparable" maxOccurs="unbounded"/>
      </xs:sequence>
    </xs:complexType>
  </xs:element>
  <xs:element name="comparable">
    <xs:complexType>
      <xs:sequence>
        <xs:element name="string" type="xs:string"/>
        <xs:element name="int" type="xs:integer"/>
      </xs:sequence>
    </xs:complexType>
  </xs:element>
</xs:schema>

and the following instance:

<comparables xmlns="http://www.xpathtest.com/test">
  <comparable>
    <string>hello</string>
    <int>1</int>
  </comparable>
  <comparable>
    <string>hello</string>
    <int>1</int>
  </comparable>
</comparables>

If I run the following XPath expression using Saxon 9.6.0-4:

//test:comparable[1]/test:int eq //test:comparable[2]/test:int

it fails with the message "Cannot compare xs:integer to xs:integer". If I replace this expression with the following:

//test:comparable[1]/test:int*1 eq //test:comparable[2]/test:int*1

it returns "true" as expected. It seems that something is amiss in the way Saxon is handling the types of the expressions being compared.

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