6697 2009-03-13 15:02:20 +0000 QT objections to precision Decimal 2009-04-18 02:05:05 +0000 1 1 1 Unclassified XML Schema Datatypes: XSD Part 2 1.1 only PC Windows XP RESOLVED LATER http://lists.w3.org/Archives/Member/w3c-xml-schema-wg/2009Feb/0006.html P2 normal --- 1 David_E3 David_E3 cmsmcq wayne.carr www-xml-schema-comments oldest_to_newest 24232 0 David_E3 2009-03-13 15:02:20 +0000 On 25 February, 2009, Jonathan Robie reiterated the problems that QT will have if XML Schema 1.1 includes precision decimal. That email is here: http://lists.w3.org/Archives/Member/w3c-xml-schema-wg/2009Feb/0006.html 24233 1 David_E3 2009-03-13 15:03:25 +0000 David Ezell sent the following reply: http://lists.w3.org/Archives/Member/w3c-xml-schema-wg/2009Feb/0007.html 24350 2 wayne.carr 2009-03-20 16:07:47 +0000 (In reply to comment #0) > On 25 February, 2009, Jonathan Robie reiterated the problems that QT will have > if XML Schema 1.1 includes precision decimal. That email is here: > http://lists.w3.org/Archives/Member/w3c-xml-schema-wg/2009Feb/0006.html > I want to comment on the possibility of the XML Schema WG removing precisionDecimal from the XML Schema Datatypes v 1.1 draft. IEEE 754-2008 decimal floating point [1] is a useful data type, especially in areas like financial applications. There is a community of users who benefit from it. Customers of ours have contacted us with concern about the possible lack of future XML support.. I won't talk specifically about other's products, but we believe there is good and growing support for IEEE 754-2008. Intel produced decimal floating point math library that has also been contributed to open source gcc 4.3 for decimal floating-point calculations on Intel Architecture platforms.[2] Our support libraries are also used in other places, and we aren't the only ones with support. The previous lack of a standard led to a variety of proprietary approaches that will have to be supported for some time, but IEEE-754 should change that in the future. Part of that process is adoption in specs like XML Schema Datatypes. Bottom line is it's a useful data type for a set of important applications and there is good and growing support across a variety of platforms. This isn't a life or death type decision (well, at least not for us), but keeping it in seems the right thing to do for the community that needs it. We hope you don't drop it. [1] "IEEE Standard for Floating-Point Arithmetic," IEEE Std 754-2008 , vol., no., pp.1-58, Aug. 29 2008 URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=4610935&isnumber=4610934 [2] http://software.intel.com/en-us/blogs/2008/03/06/intel-decimal-floating-point-math-library/ wayne ********************************** Wayne Carr W3C Advisory Committee rep Intel Corporation wayne.carr@intel.com ********************************** 24813 3 cmsmcq 2009-04-18 01:27:09 +0000 The XML Schema WG discussed this issue during this morning's telcon. We thank the XSL and XML Query WGs for reiterating the importance of this question and ensuring that it is not lost track of. The XML Schema WG remains committed to the plan we agreed on with the QT working groups in June 2007 and recorded in comment 2 of bug 3120 (http://www.w3.org/Bugs/Public/show_bug.cgi?id=3120#c2): we plan to mark precisionDecimal as a feature at risk in our Candidate Recommendation, and the exit criteria for CR will include not only implementations in the context of XSD 1.1, but also the general state of industry uptake, and the state of the IEEE documents. (The IEEE documents, as it happens, have now been published as final documents, so that might be regarded as having been overtaken by events.) Since we expect to take up the issue raised in this bug report when we progress XSD 1.1 from CR to PR, we are accordingly closing this issue as LATER. Please let us know if you agree with this resolution of your issue, by adding a comment to the issue record and changing the Status of the issue to Closed. Or, if you do not agree with this resolution, please add a comment explaining why. If you wish to appeal the WG's decision to the Director, then also change the Status of the record to Reopened. If you wish to record your dissent, but do not wish to appeal the decision to the Director, then change the Status of the record to Closed. If we do not hear from you in the next ten days or so, we will assume you agree with the WG decision. 24814 4 cmsmcq 2009-04-18 02:05:05 +0000 The XML Schema WG's disposition of this issue has been conveyed to Jonathan Robie and through him to the XML Query and XSL Working Groups. Archived copies may be retrieved from http://www.w3.org/mid/2CD35EEB-3D45-4900-97DD-A78CADF8D5E3@blackmesatech.com (member-only link).