1408 2005-05-13 20:09:44 +0000 Derived types from xs:duration 2005-09-29 11:03:24 +0000 1 1 1 Unclassified XPath / XQuery / XSLT Functions and Operators 1.0 Last Call drafts PC Windows XP CLOSED WONTFIX http://lists.w3.org/Archives/Member/w3c-xml-schema-ig/2005Apr/0054.html P2 normal --- 1 ashok.malhotra ashok.malhotra public-qt-comments oldest_to_newest 3335 0 ashok.malhotra 2005-05-13 20:09:44 +0000 In 10.3.1: >[Definition] xdt:yearMonthDuration is derived >from xs:duration by restricting its lexical >representation to contain only the year and >month components. The value space of >xdt:yearMonthDuration is the set of xs:integer >month values. The two sentences are contradictory. If xdt:yearMonthDuration is derived from xs:duration then its value space is necessarily a set of pairs, since that is what the value space of xs:duration is. The correct description of the value space is the set of pairs where the first coordinate is the set of integer month values and the second coordinate is zero. In addition, while the month property values of xs:duration are integers, they are not specified to be of type xs:integer. Schema has (??) adopted a simpler pattern for the derivation, which produces the same derived datatype. Dave Peterson for the XML Schema WG 3339 1 ashok.malhotra 2005-05-13 20:17:46 +0000 Similar comment applies to xdt:dayTimeDuration Dave Peterson for the XML Schema WG 3103 2 ashok.malhotra 2005-05-19 14:25:17 +0000 This was discussed by the joint QT WGs on 5/18/2005. They agreed that the model is different from the Schema model but as this did not affect the results of component extraction and the values returned by functions, no change was needed. Ashok Malhotra