ISSUE-67: need string predicates string-less-than, etc. (waiting on PS)


need string predicates string-less-than, etc. (waiting on PS)

Raised by:
Gary Hallmark
Opened on:
in DTB, to compare 2 numbers N1 and N2:
numeric-less-than(N1 N2)
but 2 compare 2 strings S1 and S2:
numeric-less-than(compare(S1 S2) 0)

This is inconsistent. We should use one or the other or both styles for all comparable datatypes: numeric, datetime, string
Related Actions Items:
No related actions
Related emails:
  1. [Admin] draft minutes of 7 April 2009 telecon (from on 2009-04-20)
  2. ACTION-726 completed and new issues arising from that. (from on 2009-04-08)
  3. [Admin] Agenda for RIF telecon 7 April (from on 2009-04-06)
  4. [Admin] Regrets for today's telconf. (from on 2009-03-31)
  5. [Admin] Agenda for RIF telecon 31 March (*ATTENTION:* back to usual time in Europe) (from on 2009-03-27)
  6. Re: Presentation task force telecon (from on 2009-02-20)
  7. [Admin] Agenda for RIF telecon 23 December (from on 2008-12-22)
  8. [Admin] Agenda for RIF telecon December 16 (from on 2008-12-15)
  9. [Admin] Agenda RIF telecon 9 December (from on 2008-12-08)
  10. [Admin] Agenda for RIF telecon December 2 (from on 2008-12-01)
  11. Draft minutes RIF Nov25 (from on 2008-11-30)
  12. [Admin] Agenda for the RIF telecon November 25 (from on 2008-11-24)
  13. [Admin] Agenda for RIF telecon 18 November (from on 2008-11-17)
  14. Re: [DTB] Remaining editor's notes... (from on 2008-11-13)
  15. planning for next telecon (from on 2008-11-12)
  16. [Admin] Agenda for RIF telecon 11 November (from on 2008-11-10)
  17. Draft meeting minutes: 24 June 2008 (from on 2008-06-24)
  18. ISSUE-67 (string-less-than): need string predicates string-less-than, etc. [DTB] (from on 2008-06-24)

Related notes:

At the 12/23 telecon we agreed that this issue is just about simplifying the presentation syntax, so that e.g. a "=" could be used in the PS for equality, and would then correspond to a single predicate.

So we will postpone discussion of the issue until the PS is fixed.

Christopher Welty, 6 Jan 2009, 17:04:31

At the 7-April-2009 telecon, the WG resolved to close this issue by *not having* these special string predicates, and to drop them from the draft DTB going to LC.


Christopher Welty, 15 Apr 2009, 13:41:18

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