From SPARQL Working Group
Call in details
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- Date of Call: Tuesday November 17, 2009
- Time of Call: 15:00 UK, 10:00 (East US)
- Dial-In #: +1.617.761.6200 (Cambridge, MA)
- Dial-In #: +18.104.22.168.79.03 (France)
- Dial-In #: +44.203.318.0479 (UK)
- Participant Access Code: 77277# (SPARQ)
- IRC Channel: irc.w3.org port 6665 channel #sparql ([irc:irc.w3.org:6665/sparql])
- Web-based IRC (member-only): http://www.w3.org/2001/01/cgi-irc (Firefox IRC addon: chatzilla)
- Duration: 60 minutes
- Chair: Lee Feigenbaum
- Scribe: Paul Gearon (Scribe List)
- Link to Agenda: http://www.w3.org/2009/sparql/wiki/Agenda-2009-11-17
- Liaisons - Anything to report?
- HCLS (Eric)
- XQuery (Eric)
- RIF WG (Axel)
- RDB2RDF WG (Orri)
- eGov (SteveH)
- Anything to report from the Entailment TF telecon?
- Let's resolve the following issues from http://www.w3.org/2009/sparql/wiki/F2F2_Issue_Discussions without further discussion
- PROPOSED: Resolve ISSUE-11 by noting that it's invalid to project variables/functions on variables that are not included in the GROUP BY clause and also nothing that what this means in practice depends on ISSUE-41
- PROPOSED: Asterisk is a valid argument to COUNT, but not to other aggregate functions, and not to custom aggregates
- Hold off on this pending current discussion. PROPOSED: A projected solution that contains a type error results in that solution being discarded from the solution set
- PROPOSED: SPARQL 1.1 does not inlude any subqueries other than sub-selects in graph patterns, noting that the question of an EXISTS FILTER form is still pending
- Straw polls to decide issues without strong feelings - minimal discussion allowed
- Choice of name for COALESCE (COALESCE, FIRST_BOUND, LEFTMOST, TRY, and others...)
- Do projected expressions require an alias?
- HAVING vs. FILTER
- Commas in select list?
- Note that SteveH has withdrawn support for this
- Choices are "commas required for expressions", "brackets required for expressions", "both allowed"
- Aggregates and mixed datatypes
- MIN/MAX over mixed datatypes and errors
- SUM/AVG over mixed datatypes and errors
- See http://lists.w3.org/Archives/Public/public-rdf-dawg/2009OctDec/0380.html
- Also see http://lists.w3.org/Archives/Public/public-rdf-dawg/2009OctDec/0408.html
- Scope of alias variables
- Do aggregate functions need to be set off syntactically?
- Touches on ISSUE-15 and also whether or not all aggregate functions can accept a DISTINCT modifier
- Next time - update issues? service description? http update? protocol?