IRC log of rdb2rdf on 2010-10-12
Timestamps are in UTC.
- 15:57:42 [RRSAgent]
- RRSAgent has joined #rdb2rdf
- 15:57:42 [RRSAgent]
- logging to http://www.w3.org/2010/10/12-rdb2rdf-irc
- 15:57:44 [trackbot]
- RRSAgent, make logs world
- 15:57:44 [Zakim]
- Zakim has joined #rdb2rdf
- 15:57:46 [trackbot]
- Zakim, this will be 7322733
- 15:57:46 [Zakim]
- ok, trackbot; I see SW_RDB2RDF()12:00PM scheduled to start in 3 minutes
- 15:57:47 [trackbot]
- Meeting: RDB2RDF Working Group Teleconference
- 15:57:47 [trackbot]
- Date: 12 October 2010
- 15:57:55 [mhausenblas]
- Agenda: http://lists.w3.org/Archives/Public/public-rdb2rdf-wg/2010Oct/0017.html
- 15:57:58 [mhausenblas]
- Chair: Michael
- 15:58:32 [ericP]
- juansequeda, i think the use cases in http://www.w3.org/2010/10/12-Direct-Tests cover http://www.w3.org/2001/sw/rdb2rdf/wiki/All_Cases_for_Default_Mapping , but i'd like a second pair of eyes
- 15:58:57 [juansequeda]
- ericP, I was looking into this.
- 15:59:12 [juansequeda]
- Quick eyeball check says yes. But need to look at it carefully
- 15:59:15 [juansequeda]
- nicely done.
- 15:59:17 [boris]
- boris has joined #rdb2rdf
- 16:00:48 [Zakim]
- SW_RDB2RDF()12:00PM has now started
- 16:00:49 [Zakim]
- + +35385271aaaa
- 16:01:05 [nunolopes]
- Zakim, aaaa is me
- 16:01:05 [Zakim]
- +nunolopes; got it
- 16:01:13 [hhalpin]
- hhalpin has joined #rdb2rdf
- 16:01:13 [Ashok]
- Ashok has joined #rdb2rdf
- 16:01:15 [Zakim]
- +mhausenblas
- 16:01:16 [Zakim]
- -mhausenblas
- 16:01:16 [Zakim]
- +mhausenblas
- 16:01:28 [mhausenblas]
- Zakim, who's here?
- 16:01:28 [Zakim]
- On the phone I see nunolopes, mhausenblas
- 16:01:29 [Zakim]
- On IRC I see Ashok, hhalpin, boris, Zakim, RRSAgent, nunolopes, juansequeda, betehess, MacTed, LeeF, mhausenblas, iv_an_ru, trackbot, ericP
- 16:01:31 [Zakim]
- + +1.512.471.aabb
- 16:01:37 [juansequeda]
- Zakim, aabb is me
- 16:01:37 [Zakim]
- +juansequeda; got it
- 16:01:39 [cygri]
- cygri has joined #rdb2rdf
- 16:01:47 [mhausenblas]
- Zakim, cygri is with mhausenblas
- 16:01:47 [Zakim]
- +PatH
- 16:01:52 [Zakim]
- +cygri; got it
- 16:01:57 [mhausenblas]
- Zakim, who's here?
- 16:02:00 [Zakim]
- On the phone I see nunolopes, mhausenblas, juansequeda, PatH
- 16:02:04 [Zakim]
- mhausenblas has mhausenblas, cygri
- 16:02:08 [Zakim]
- On IRC I see cygri, Ashok, hhalpin, boris, Zakim, RRSAgent, nunolopes, juansequeda, betehess, MacTed, LeeF, mhausenblas, iv_an_ru, trackbot, ericP
- 16:02:23 [Seema]
- Seema has joined #rdb2rdf
- 16:02:25 [boris]
- Hi, I have problems with the passcode
- 16:02:28 [Zakim]
- +Ashok_Malhotra
- 16:02:33 [Zakim]
- +pchampin
- 16:02:52 [Zakim]
- +OpenLink_Software
- 16:02:59 [MacTed]
- Zakim, OpenLink_Software is temporarily me
- 16:02:59 [Zakim]
- +MacTed; got it
- 16:03:01 [MacTed]
- Zakim, mute me
- 16:03:01 [Zakim]
- MacTed should now be muted
- 16:03:28 [angela]
- angela has joined #RDB2RDF
- 16:03:28 [nunolopes]
- Zakim, mute me
- 16:03:28 [Zakim]
- nunolopes should now be muted
- 16:03:36 [PatHayes]
- PatHayes has joined #rdb2rdf
- 16:03:36 [mhausenblas]
- Zakim, who's here?
- 16:03:36 [Zakim]
- On the phone I see nunolopes (muted), mhausenblas, juansequeda, PatH, Ashok_Malhotra, pchampin, MacTed (muted)
- 16:03:39 [Zakim]
- mhausenblas has mhausenblas, cygri
- 16:03:40 [Zakim]
- On IRC I see PatHayes, angela, Seema, cygri, Ashok, hhalpin, boris, Zakim, RRSAgent, nunolopes, juansequeda, betehess, MacTed, LeeF, mhausenblas, iv_an_ru, trackbot, ericP
- 16:03:43 [Zakim]
- +Souri
- 16:03:43 [Zakim]
- +boris
- 16:04:02 [Souri]
- Souri has joined #rdb2rdf
- 16:04:19 [Souri]
- zakim, who is on the phone?
- 16:04:19 [Zakim]
- On the phone I see nunolopes (muted), mhausenblas, juansequeda, PatH, Ashok_Malhotra, pchampin, MacTed (muted), Souri, boris
- 16:04:21 [Zakim]
- mhausenblas has mhausenblas, cygri
- 16:04:36 [mhausenblas]
- RRSAgent, draft minutes
- 16:04:36 [RRSAgent]
- I have made the request to generate http://www.w3.org/2010/10/12-rdb2rdf-minutes.html mhausenblas
- 16:04:42 [PatHayes]
- I will have to leave the telecon about 15 mins early today, apologies.
- 16:04:44 [mhausenblas]
- RRSAgent, make logs public
- 16:04:44 [Zakim]
- +Seema
- 16:05:49 [mhausenblas]
- scribenick: Ashok
- 16:06:17 [juansequeda]
- Marcelo will be a bit late but he will start attending again today
- 16:06:39 [mhausenblas]
- thanks juansequeda
- 16:07:03 [Ashok]
- PROPOSAL: Accept the minutes of last meeting, see http://www.w3.org/2010/10/05-rdb2rdf-minutes.html
- 16:07:19 [Ashok]
- RESOLUTION: Minutes approved
- 16:08:05 [Ashok]
- FPWD "Relational Database to RDF Mapping Language" http://www.w3.org/2001/sw/rdb2rdf/r2rml/
- 16:08:14 [Ashok]
- TOPIC: FPWD "Relational Database to RDF Mapping Language" http://www.w3.org/2001/sw/rdb2rdf/r2rml/
- 16:09:39 [ericP]
- Zakim, please dial ericP-office
- 16:09:39 [Zakim]
- ok, ericP; the call is being made
- 16:09:41 [Zakim]
- +EricP
- 16:09:44 [Ashok]
- Richard: Continuing work on the draft ... latest version checked in a few minutes ago
- 16:10:28 [Ashok]
- ... worked on Action 1 to address some of the issues raised last week
- 16:10:39 [Ashok]
- ... audience etc.
- 16:11:26 [Ashok]
- ... some issues not addressed
- 16:12:31 [Ashok]
- ... like version on SQL supported
- 16:12:52 [mhausenblas]
- http://lists.w3.org/Archives/Public/public-rdb2rdf-wg/2010Oct/0007.html
- 16:12:55 [Marcelo]
- Marcelo has joined #rdb2rdf
- 16:12:56 [Ashok]
- Ashok: I recommend Core of latest version of SQL ... sent mail earlier
- 16:13:03 [Zakim]
- + +1.562.249.aacc
- 16:13:20 [mhausenblas]
- Zakim, aacc is Marcelo
- 16:13:20 [Zakim]
- +Marcelo; got it
- 16:13:27 [Ashok]
- ... core not very different from SQL 99 or even SQL 92
- 16:13:28 [mhausenblas]
- Zakim, who's making noise?
- 16:13:39 [Zakim]
- mhausenblas, listening for 10 seconds I heard sound from the following: mhausenblas (49%), Marcelo (24%)
- 16:13:58 [mhausenblas]
- Zakim, mute Marcelo
- 16:13:58 [Zakim]
- Marcelo should now be muted
- 16:14:24 [Ashok]
- Richard: Need to work on scope of the document
- 16:14:45 [Ashok]
- ... e.g. how it interacts with formal semantics
- 16:15:05 [Ashok]
- ... added some words on target audience
- 16:15:50 [Ashok]
- Michael: Can you talk about prerequisite knowledge ... SQL?
- 16:16:51 [Ashok]
- Michael: Add sentence about required background
- 16:17:40 [Ashok]
- Richard: Not yet addes inline examples
- 16:17:59 [Ashok]
- Souri: We added a few inline examples
- 16:18:49 [Ashok]
- Michael: Can you add the ouput also?
- 16:19:32 [Ashok]
- c/ouput/output/
- 16:20:32 [Ashok]
- s/ouput/output/
- 16:21:04 [Zakim]
- +Alexandre
- 16:21:21 [Ashok]
- Michael: Make clear what is normative
- 16:21:48 [betehess]
- Zakim, mute Alexandre
- 16:21:48 [Zakim]
- Alexandre should now be muted
- 16:23:29 [Ashok]
- Discussion about how to indicate what is normative
- 16:25:08 [ericP]
- [[
- 16:25:08 [ericP]
- Unless otherwise noted in the section heading, all sections and appendices in this document are normative.
- 16:25:11 [ericP]
- ]] — http://www.w3.org/TR/rdf-sparql-query/#docOutline
- 16:26:04 [mhausenblas]
- RRSAgent, draft minutes
- 16:26:04 [RRSAgent]
- I have made the request to generate http://www.w3.org/2010/10/12-rdb2rdf-minutes.html mhausenblas
- 16:27:34 [mhausenblas]
- http://www.w3.org/TR/2010/WD-rdb2rdf-ucr-20100608/
- 16:28:04 [Ashok]
- Michael: Did you check the Usecases & Requirements document
- 16:28:51 [Ashok]
- Souri: We can check
- 16:31:46 [Ashok]
- PatHayes: Where is the mapping
- 16:32:00 [Ashok]
- Souri: See examples at end
- 16:37:16 [betehess]
- +1 to Pat: I don't see what the input and what is the output, especially in the default case
- 16:37:34 [juansequeda]
- We have a datalog specification of the mapping here: http://www.w3.org/2001/sw/rdb2rdf/wiki/Default_Mapping
- 16:37:56 [juansequeda]
- EricP has defined another version of the mapping based on sets http://www.w3.org/2001/sw/rdb2rdf/directGraph/
- 16:38:53 [Ashok]
- Juan: Is the datalog mapping useful
- 16:39:08 [Ashok]
- PatHayes: Yes, that's helpful
- 16:40:09 [Ashok]
- Michael: Pat could you help write what the mapping is?
- 16:40:19 [Ashok]
- s/Pat/Pat,/
- 16:42:06 [Ashok]
- Souri: Perhaps write a description of mapping at the front
- 16:42:32 [Ashok]
- Michael: Can you write the sentence in IRC?
- 16:42:52 [Ashok]
- Souri: I will work on it
- 16:43:02 [Zakim]
- -PatH
- 16:43:53 [Ashok]
- Michael: Can we publish next week?
- 16:44:40 [Ashok]
- Richard: Need to do some work
- 16:45:13 [Ashok]
- ... at what point is document good enough?
- 16:45:30 [Ashok]
- Michael: We need toexplain the mapping
- 16:46:31 [mhausenblas]
- Michael: Once the mapping semantics are defined (highlevel, in natural language) the document is good to go, IMO
- 16:47:18 [ericP]
- +1 to cygri
- 16:47:30 [Seema]
- +1 to cygri
- 16:47:38 [betehess]
- +1 to cygri
- 16:48:36 [betehess]
- q+
- 16:49:10 [betehess]
- Zakim, unmute Alexandre
- 16:49:10 [Zakim]
- Alexandre should no longer be muted
- 16:49:16 [mhausenblas]
- ack betehess
- 16:49:18 [Souri]
- A row in a relational table has <a row identifier> and a number of <column-name, value> pairs. Such a row may be translated to RDF as follows: subject := MAP(<row identifier>) and <predicate, object> := <MAP(column-name), MAP(value)>, for each <column-name, value> pair. An RDF triple is generated by combining the above as follows: <subject, predicate, object>
- 16:52:53 [juansequeda]
- q+
- 16:53:31 [mhausenblas]
- Michael: rename 2. Overview into 2. Mapping (or the like) and incl. Souri's semantics paragraph from above
- 16:53:33 [mhausenblas]
- q?
- 16:53:39 [mhausenblas]
- ack juansequeda
- 16:54:45 [Ashok]
- DanM: We have data, names of columns and names of tables ... actually quite simple
- 16:54:47 [betehess]
- Souri's introduction is not enough to explain what's going on: what about Primary Key, Foreign Key, Compound Key, etc. ?
- 16:55:31 [betehess]
- q+
- 16:56:01 [Seema]
- foerign keys are handled in the current document
- 16:56:04 [mhausenblas]
- ack betehess
- 16:56:10 [Ashok]
- Souri, Ashok agree with Dan
- 16:56:26 [mhausenblas]
- Michael: +1 to Dan
- 16:57:13 [Ashok]
- Alexandre explains his position for more explanation
- 16:57:44 [juansequeda]
- betehess, does this solve your questions: http://www.w3.org/2001/sw/rdb2rdf/wiki/Default_Mapping and http://www.w3.org/2001/sw/rdb2rdf/directGraph/
- 16:58:32 [mhausenblas]
- q?
- 16:58:51 [MacTed]
- Zakim, unmute me
- 16:58:51 [Zakim]
- MacTed should no longer be muted
- 16:59:37 [betehess]
- if the simple mapping is so easy, show it to us
- 16:59:55 [juansequeda]
- betehess, did you see this: http://www.w3.org/2001/sw/rdb2rdf/wiki/Default_Mapping and http://www.w3.org/2001/sw/rdb2rdf/directGraph/
- 17:00:20 [betehess]
- juansequeda, yes, but it has not been discussed today
- 17:01:03 [juansequeda]
- betehess, we have kept that a separate discussion
- 17:01:15 [Zakim]
- -Ashok_Malhotra
- 17:01:17 [juansequeda]
- but as I suggest, maybe we need to put these two things together
- 17:01:17 [MacTed]
- Zakim, mute me
- 17:01:17 [Zakim]
- MacTed should now be muted
- 17:01:24 [mhausenblas]
- [adjourned]
- 17:01:25 [Zakim]
- -pchampin
- 17:01:31 [Zakim]
- -EricP
- 17:01:33 [Zakim]
- -nunolopes
- 17:01:36 [Zakim]
- -Alexandre
- 17:01:46 [mhausenblas]
- Zakim, who's here?
- 17:01:46 [Zakim]
- On the phone I see mhausenblas, juansequeda, MacTed (muted), Souri, boris, Seema, Marcelo (muted)
- 17:01:48 [Zakim]
- mhausenblas has mhausenblas, cygri
- 17:01:49 [Zakim]
- On IRC I see Marcelo, Souri, Seema, cygri, Ashok, boris, Zakim, RRSAgent, nunolopes, juansequeda, betehess, MacTed, LeeF, mhausenblas, iv_an_ru, trackbot, ericP
- 17:01:52 [Zakim]
- -Marcelo
- 17:01:55 [mhausenblas]
- RRSAgent, draft minutes
- 17:01:55 [RRSAgent]
- I have made the request to generate http://www.w3.org/2010/10/12-rdb2rdf-minutes.html mhausenblas
- 17:02:02 [Zakim]
- -boris
- 17:02:15 [mhausenblas]
- RRSAgent, draft minutes
- 17:02:15 [RRSAgent]
- I have made the request to generate http://www.w3.org/2010/10/12-rdb2rdf-minutes.html mhausenblas
- 17:02:32 [mhausenblas]
- Zakim, list attendees
- 17:02:32 [Zakim]
- As of this point the attendees have been +35385271aaaa, nunolopes, mhausenblas, +1.512.471.aabb, juansequeda, PatH, cygri, Ashok_Malhotra, pchampin, MacTed, Souri, boris, Seema,
- 17:02:35 [Zakim]
- ... EricP, +1.562.249.aacc, Marcelo, Alexandre
- 17:02:37 [mhausenblas]
- RRSAgent, draft minutes
- 17:02:37 [RRSAgent]
- I have made the request to generate http://www.w3.org/2010/10/12-rdb2rdf-minutes.html mhausenblas
- 17:03:40 [Zakim]
- -juansequeda
- 17:04:08 [Zakim]
- -MacTed
- 17:04:51 [Zakim]
- -Seema
- 17:04:53 [Zakim]
- -Souri
- 17:04:55 [Zakim]
- -mhausenblas
- 17:04:57 [Zakim]
- SW_RDB2RDF()12:00PM has ended
- 17:04:59 [Zakim]
- Attendees were +35385271aaaa, nunolopes, mhausenblas, +1.512.471.aabb, juansequeda, PatH, cygri, Ashok_Malhotra, pchampin, MacTed, Souri, boris, Seema, EricP, +1.562.249.aacc,
- 17:05:04 [Zakim]
- ... Marcelo, Alexandre
- 17:05:08 [mhausenblas]
- RRSAgent, draft minutes
- 17:05:08 [RRSAgent]
- I have made the request to generate http://www.w3.org/2010/10/12-rdb2rdf-minutes.html mhausenblas
- 17:51:02 [mhausenblas]
- trackbot, end telecon
- 17:51:02 [trackbot]
- Zakim, list attendees
- 17:51:02 [Zakim]
- sorry, trackbot, I don't know what conference this is
- 17:51:03 [trackbot]
- RRSAgent, please draft minutes
- 17:51:03 [RRSAgent]
- I have made the request to generate http://www.w3.org/2010/10/12-rdb2rdf-minutes.html trackbot
- 17:51:04 [trackbot]
- RRSAgent, bye
- 17:51:04 [RRSAgent]
- I see no action items