- From: Richard Cyganiak <richard@cyganiak.de>
- Date: Tue, 31 Aug 2010 12:23:52 +0200
- To: Michael Hausenblas <michael.hausenblas@deri.org>
- Cc: RDB2RDF WG <public-rdb2rdf-wg@w3.org>
Regrets from me as well, I'm travelling and won't be at the hotel in time to join the call Richard On 31 Aug 2010, at 00:34, ashok malhotra wrote: > Regrets for tomorrow's call. Last chance for a bit of vacation this > summer. > Hope you make progress on the syntax. > All the best, Ashok > > On 8/30/2010 8:02 AM, Michael Hausenblas wrote: >> All, >> >> Below the agenda for tomorrow's meeting. >> >> Cheers, >> Michael >> >> --------------------------------------------------------- >> AGENDA Teleconference >> W3C RDB2RDF Working Group telephone conference 2010-08-31 >> ---------------------------------------------------------- >> Tuesday, 31 August *16:00-17:00 UTC* Local time: >> http://www.timeanddate.com/worldclock/fixedtime.html?month=08&day=31&year=20 >> 10&hour=16&min=00&sec=0 >> Bridge US: +1-617-761-6200 (Zakim) Conference code : 7322733# (spells >> "RDB2RDF") >> Duration : 60 minutes >> ------------------------------------------------------------------- >> IRC channel : #RDB2RDF on irc.w3.org:6665 W3C IRC Web Client : >> http://www.w3.org/2001/01/cgi-irc >> Zakim information : http://www.w3.org/2002/01/UsingZakim >> Zakim bridge monitor : http://www.w3.org/1998/12/bridge/Zakim.html >> Zakim IRC bot : http://www.w3.org/2001/12/zakim-irc-bot.html >> ------------------------------------------------------------------- >> >> Chair: Michael >> Scribe: Boris >> >> >> 1. Admin PROPOSAL: Accept the minutes of last meeting, see >> http://www.w3.org/2010/08/24-rdb2rdf-minutes.html >> >> >> 2. Revised proposal from Souri >> http://www.w3.org/2001/sw/rdb2rdf/wiki/An_XML_Schema_for_SQL-based_RDB2RDF_M >> apping_%28Revision_1%29 >> >> Souri's comment: >> Regarding Comment 2.5 (Lookup Table): How can we translate a SPARQL >> query with FILTER involving transformed values? >> >> Example: Consider the following SPARQL query involving a property, >> :transfProp, whose values are transformed, via a lookup table, into >> (-1) >> times the original value >> (e.g., 10 in an INTEGER column, i.e., "10"^^xsd:integer in >> RDF, is >> transformed into "-10"^^xsd:integer): >> >> SELECT ?x ?y WHERE {?x :transfProp ?v1 . ?y :transfProp ? >> v2 . >> FILTER (?v1> ?v2)} >> >> How can SQL know, without having the lookup table somehow >> specified (in a CASE statement or something equivalent), how to >> evaluate >> the FILTER clause? >> >> >> 3. Test Cases >> Kick-off the discussion around test cases, see >> http://www.w3.org/2001/sw/rdb2rdf/test-cases/ >> >> Boris volunteered to be process owner re TC and will give some >> background on >> purpose and approach. >> >> >> 4. What are we going to do about the Default Mapping? Separate >> document? >> Who can start a document for discussion? Juan, Eric, Souri? >> >> >> 5. Discussion on next steps for SQL-based approach. >> Create FPWD? Who volunteers for editing this? >> >> >> 6. Syntax discussion >> See post from Richard and follow-ups on mailing list >> http://lists.w3.org/Archives/Public/public-rdb2rdf-wg/2010Aug/0038.html >> >> Options are: >> >> + custom syntax >> http://lists.w3.org/Archives/Public/public-rdb2rdf-wg/2010Aug/0055.html >> >> + RDF/Turtle >> http://www.w3.org/2001/sw/rdb2rdf/wiki/R2RML_in_Turtle >> >> + XML >> >> http://www.w3.org/2001/sw/rdb2rdf/wiki/Example_of_SQL-based_RDB2RDF_Mapping >> : >> _Revision_1 >> >> >> 7. AOB >> >
Received on Tuesday, 31 August 2010 10:24:29 UTC