17599 2012-06-26 11:51:17 +0000 [XQ31ReqUC] Dynamic sort order and collation for order by 2014-05-20 16:58:55 +0000 1 1 1 Unclassified XPath / XQuery / XSLT Requirements for Future Versions Working drafts PC Linux NEW P2 normal --- 1 john.snelson jim.melton jim.melton mike public-qt-comments oldest_to_newest 69399 0 john.snelson 2012-06-26 11:51:17 +0000 It's often necessary to choose between sort order and collation used at runtime, especially when implementing a GUI - which typically has toggles for options like these. This is particularly hard to do right now, as the "order by" syntax has these as statically determined properties of the expression. One possible way tp do this currently is: order by if($asc) then $i/title else () ascending, if($asc) then () else $i/title descending It would be beneficial to allow an alternate form of "order by" that allows these properties to be specified at runtime. 69402 1 mike 2012-06-26 12:09:20 +0000 Another way of achieving this, which would also have the benefit of adding a sort capability to XPath, would be a higher order sort() function, parameterized by either (a) a function that computes the sort key, or (b) a function that compares two items in the sequence to be sorted 106481 2 jonathan.robie 2014-05-20 16:58:55 +0000 Assigning to future requirements per Working Group decision (https://lists.w3.org/Archives/Member/w3c-xsl-query/2012Oct/0087.html).