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Bug 1732 - [FS] is "derives from" really asymmetric?
Summary: [FS] is "derives from" really asymmetric?
Status: CLOSED FIXED
Alias: None
Product: XPath / XQuery / XSLT
Classification: Unclassified
Component: Formal Semantics 1.0 (show other bugs)
Version: Last Call drafts
Hardware: PC Windows 2000
: P2 normal
Target Milestone: ---
Assignee: Jerome Simeon
QA Contact: Mailing list for public feedback on specs from XSL and XML Query WGs
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Reported: 2005-07-18 22:09 UTC by Fred Zemke
Modified: 2005-09-06 13:10 UTC (History)
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Description Fred Zemke 2005-07-18 22:09:05 UTC 
8.1.1 Derives from
Under "Note", second sentence, it says "It is asymmetric because
no cycles are allowed in derivation by restriction or extension."
This constraint is not mentioned in section 2.4.4 "Top level
definitions" and is actually violated in 3.5.1 "Predefined 
schema types", where we are told that xs:anyType is a restriction
of xs:anyType.  I think the latter is a mistake, but it is
worth mentioning this constraint in 2.4.4.
Comment 1 Paul Cotton 2005-07-20 00:49:43 UTC 
The WGs agreed to delete the sentence: ""It is asymmetric because
no cycles are allowed in derivation by restriction or extension."

Please let us know if you are not satisfied with this response.

Paul Cotton
On behalf of the XML Query and XSL WGs