1452 2005-05-16 15:33:24 +0000 [XQuery]: "deterministic" indicator for external functions 2005-09-29 11:19:17 +0000 1 1 1 Unclassified XPath / XQuery / XSLT XQuery 1.0 Last Call drafts PC Linux CLOSED WONTFIX http://lists.w3.org/Archives/Public/public-qt-comments/2005May/0217.html futureConsideration P2 normal --- 1 cmsmcq chamberl dengovatov public-qt-comments oldest_to_newest 3262 0 cmsmcq 2005-05-16 15:33:24 +0000 [Copied into Bugzilla from the comments list by CMSMcQ. See also thread beginning at http://lists.w3.org/Archives/Public/public-qt-comments/2005May/0217.html] We propose to add an optional clause to the external function declaration to indicate whether the external function always returns the same results for given argument values ("deterministic"). An example use case would be to allow users to indicate that two external functions embedded into xquery: f:random() and f:verySlowDeterministicExternalWebService() should be treated differently by the query processor. That can be implemented by changing FunctionDecl to [26] FunctionDecl ::= "declare" "function" QName "(" ParamList? (")" | (")" "as" SequenceType)) (EnclosedExpr | ("external" (<"not" "deterministic"> | "deterministic")?)) Daniel. 2732 1 chamberl 2005-06-10 17:34:50 +0000 On May 16, the Query Working Group decided that we do not yet have enough with external functions to justify adding a "deterministic" clause to the syntax of a function declaration. Your request for this functionality will be reconsidered in a future version of XQuery. Please let us know whether you are satisfied with this resolution of your comment.