15:39:27 RRSAgent has joined #rdb2rdf 15:39:27 logging to http://www.w3.org/2011/06/14-rdb2rdf-irc 15:39:29 RRSAgent, make logs world 15:39:29 Zakim has joined #rdb2rdf 15:39:31 Zakim, this will be 7322733 15:39:31 ok, trackbot; I see SW_RDB2RDF()12:00PM scheduled to start in 21 minutes 15:39:32 Meeting: RDB2RDF Working Group Teleconference 15:39:32 Date: 14 June 2011 15:40:02 Agenda: http://lists.w3.org/Archives/Public/public-rdb2rdf-wg/2011Jun/0051.html 15:40:07 Chair: Michael 15:40:16 RRSAgent, draft minutes 15:40:16 I have made the request to generate http://www.w3.org/2011/06/14-rdb2rdf-minutes.html mhausenblas 15:40:21 RRSAgent make logs public 15:53:35 boris has joined #rdb2rdf 15:54:40 ivan has joined #rdb2rdf 15:54:46 SW_RDB2RDF()12:00PM has now started 15:54:54 + +3539149aaaa 15:54:58 Zakim, who's here? 15:54:58 On the phone I see +3539149aaaa 15:55:00 On IRC I see ivan, boris, Zakim, RRSAgent, mhausenblas, MacTed, iv_an_ru_, betehess, cygri, trackbot 15:55:04 Zakim, aaaa is me 15:55:04 +mhausenblas; got it 15:55:13 present+ Michael 15:55:20 RRSAgent, draft minutes 15:55:20 I have made the request to generate http://www.w3.org/2011/06/14-rdb2rdf-minutes.html mhausenblas 15:55:46 Ashok has joined #rdb2rdf 15:57:03 zakim, dial ivan-voip 15:57:03 ok, ivan; the call is being made 15:57:04 +Ivan 15:57:18 Zakim, who's here? 15:57:18 On the phone I see mhausenblas, Ivan 15:57:20 On IRC I see Ashok, ivan, boris, Zakim, RRSAgent, mhausenblas, MacTed, iv_an_ru_, betehess, cygri, trackbot 15:57:20 LeeF has joined #rdb2rdf 15:58:03 cygri_ has joined #rdb2rdf 15:58:09 privera has joined #RDB2RDF 15:58:42 zakim, i'm with mhausenblas 15:58:42 +cygri_; got it 15:58:52 Zakim, who's here? 15:58:52 On the phone I see mhausenblas, Ivan 15:58:53 mhausenblas has cygri_ 15:58:55 On IRC I see privera, cygri_, LeeF, Ashok, ivan, boris, Zakim, RRSAgent, mhausenblas, MacTed, iv_an_ru_, betehess, cygri, trackbot 15:59:55 + +49.153.6.aabb 15:59:55 +??P10 16:00:10 Zakim, aabb is boris 16:00:10 +boris; got it 16:00:19 Zakim, mute me 16:00:19 sorry, privera, I do not know which phone connection belongs to you 16:00:23 Zakim, P10 is privera 16:00:23 sorry, mhausenblas, I do not recognize a party named 'P10' 16:00:28 Zakim, ??P10 is privera 16:00:28 +privera; got it 16:00:37 Zakim, mute me 16:00:37 privera should now be muted 16:00:40 scribenick: ivan 16:00:48 scribe: ivan 16:00:49 present+ Boris 16:00:50 + +1.781.273.aacc 16:00:58 present+ Percy 16:00:59 Zakim, aacc is OpenLink_Software 16:00:59 +OpenLink_Software; got it 16:01:04 Zakim, aacc is MacTed 16:01:04 sorry, mhausenblas, I do not recognize a party named 'aacc' 16:01:12 dmcneil has joined #RDB2RDF 16:01:24 zakim, OpenLink_Software is MacTed 16:01:24 +MacTed; got it 16:01:24 present+ Ted 16:01:31 Zakim, who's around? 16:01:31 I don't understand your question, mhausenblas. 16:01:35 Zakim, who's here? 16:01:35 On the phone I see mhausenblas, Ivan, boris, privera (muted), MacTed 16:01:36 mhausenblas has cygri_ 16:01:36 Zakim, MacTed is OpenLink_Software 16:01:36 Zakim, OpenLink_Software is temporarily me 16:01:37 +OpenLink_Software; got it 16:01:38 On IRC I see dmcneil, privera, cygri, LeeF, Ashok, ivan, boris, Zakim, RRSAgent, mhausenblas, MacTed, iv_an_ru_, betehess, trackbot 16:01:39 :-) 16:01:40 Zakim, who's working? 16:01:41 +MacTed; got it 16:01:43 I don't understand your question, mhausenblas. 16:01:54 +Ashok_Malhotra 16:02:02 present+ Ashok 16:02:05 Zakim, who's here? 16:02:05 On the phone I see mhausenblas, Ivan, boris, privera (muted), MacTed, Ashok_Malhotra 16:02:08 mhausenblas has cygri_ 16:02:11 On IRC I see dmcneil, privera, cygri, LeeF, Ashok, ivan, boris, Zakim, RRSAgent, mhausenblas, MacTed, iv_an_ru_, betehess, trackbot 16:02:37 regrets+ Marcelo 16:03:05 + +1.314.394.aadd 16:03:16 Zakim, aadd is dmcneil 16:03:16 +dmcneil; got it 16:03:21 present+ David 16:03:28 Zakim, who's here? 16:03:28 On the phone I see mhausenblas, Ivan, boris, privera (muted), MacTed, Ashok_Malhotra, dmcneil 16:03:30 mhausenblas has cygri_ 16:03:31 On IRC I see dmcneil, privera, cygri, LeeF, Ashok, ivan, boris, Zakim, RRSAgent, mhausenblas, MacTed, iv_an_ru_, betehess, trackbot 16:03:39 Seema has joined #rdb2rdf 16:03:45 nunolopes has joined #RDB2RDF 16:03:55 Zakim, nunolopes is with mhausenblas 16:03:55 +nunolopes; got it 16:04:14 ericP has joined #rdb2rdf 16:04:19 topic: admin stuff 16:04:21 Zakim, please dial ericP-office 16:04:21 ok, ericP; the call is being made 16:04:22 +EricP 16:04:27 PROPOSAL: Accept the minutes of last meeting http://www.w3.org/2011/05/31-rdb2rdf-minutes.html 16:05:06 mhausenblas: any comment on the minutes? 16:05:07 .... 16:05:09 .... 16:05:11 .... 16:05:24 RESOLVED: Accept the minutes of last meeting http://www.w3.org/2011/05/31-rdb2rdf-minutes.html 16:05:30 topic: semtech debrief 16:05:39 mhausenblas: who wants to start 16:05:46 + +1.603.897.aaee 16:05:53 dmcneil: i made a talk on r2rml and spider 16:05:55 +Alexandre 16:05:57 ... fairly full room 16:05:59 + +1.603.897.aaff 16:06:00 Souri has joined #rdb2rdf 16:06:02 ... well received 16:06:13 Zakim, aaee is Seema 16:06:13 +Seema; got it 16:06:20 juansequeda has joined #rdb2rdf 16:06:25 present+ Seema 16:06:27 Zakim, aaff is Souri 16:06:27 +Souri; got it 16:06:33 present+ Souri 16:06:38 Zakim, who's here? 16:06:38 On the phone I see mhausenblas, Ivan, boris, privera (muted), MacTed, Ashok_Malhotra, dmcneil, EricP, Seema, Alexandre, Souri 16:06:40 mhausenblas has cygri_, nunolopes 16:06:41 On IRC I see juansequeda, Souri, ericP, nunolopes, Seema, dmcneil, privera, cygri, LeeF, Ashok, ivan, boris, Zakim, RRSAgent, mhausenblas, MacTed, iv_an_ru_, betehess, trackbot 16:06:43 dmcneil: there were several questions, people followed along with the ideas 16:06:57 ... the pressing question was the question i posted on the mailing list 16:07:03 + +575737aagg 16:07:03 ... how to code a uri as a resource 16:07:08 Zakim, aagg is me 16:07:08 +juansequeda; got it 16:07:15 ... i got questions on the representation of the mapping itself, 16:07:19 present+ Juan 16:07:24 ... some people pushed back on the verbosity of turtle 16:07:34 ... one gentleman proposed a specific syntax for the mapping 16:07:42 Michael: Enrico just send the following to the WG list: "Still stuck on the train with an horrible delay. I can't make it on time :-(" 16:07:42 Ashok: what sort of syntax? 16:07:52 dmcneil: data represntation, concise to r2rml 16:07:55 ... and translate that 16:07:55 funny enough, ericP just posted a abstract model this morning 16:08:20 s/represntation/representation/ 16:08:20 +LeeF 16:08:25 present+ Lee 16:08:29 Zakim, who's here? 16:08:29 On the phone I see mhausenblas, Ivan, boris, privera (muted), MacTed, Ashok_Malhotra, dmcneil, EricP, Seema, Alexandre, Souri, juansequeda, LeeF 16:08:30 juansequeda: was good to see the state of sw technologies 16:08:32 mhausenblas has cygri_, nunolopes 16:08:35 On IRC I see juansequeda, Souri, ericP, nunolopes, Seema, dmcneil, privera, cygri, LeeF, Ashok, ivan, boris, Zakim, RRSAgent, mhausenblas, MacTed, iv_an_ru_, betehess, trackbot 16:08:44 ... i realized that people see that they need rdb to rdf 16:08:51 ... eg people from golden sachs 16:09:02 ... people from big it companies are waiting for us 16:09:12 mhausenblas: anyone else to report 16:10:00 Ivan: Cray has a big offering re iron 16:10:11 dmcneil, here's a concrete syntax based on the example at the top of the r2rml spec: http://www.w3.org/2005/01/yacker/uploads/R2RML?lang=perl&markup=html#prod-R2RML-R2RML_Mapping 16:10:24 (that'd different from the abstract syntax) 16:10:59 mhausenblas: any other reports regarding semtech 16:13:47 mhausenblas: we should, in general, report when a wg member is at an event, conference, etc 16:13:54 ... use that to collect feedback 16:14:02 ... getting to last call needs that 16:14:14 topic: action items 16:14:26 -juansequeda 16:14:29 mhausenblas: should we go through the action items or jump on the issues 16:14:52 ... i know the enrico is delayed, but he may join us later 16:15:02 ... i would propose to start with issue 22 16:15:10 +juansequeda 16:15:22 q+ 16:15:33 topic: issue 22 16:15:37 issue-22? 16:15:37 ISSUE-22 -- Support for database vendor specific SQL statements. -- open 16:15:37 http://www.w3.org/2001/sw/rdb2rdf/track/issues/22 16:15:47 ack Souri 16:15:52 q? 16:16:07 Souri: i was going to make a comment on issue 18, I have started to update the document on the resolution of that one, should be done for next week 16:16:38 mhausenblas: so, issue 22, who can help? 16:16:51 ... dmcneil, you brought this up? 16:17:03 Proposal: http://lists.w3.org/Archives/Public/public-rdb2rdf-wg/2011May/0179.html 16:17:03 action-133? 16:17:03 ACTION-133 -- Eric Prud'hommeaux to write proposal for issue-22 -- due 2011-06-07 -- OPEN 16:17:03 http://www.w3.org/2001/sw/rdb2rdf/track/actions/133 16:17:29 ericP: the prudent way of handling mine is to see a resolution on whether we flag an extended sql with anything 16:17:40 ... we have some use to flag an extension with an identifier 16:17:56 ... the debate is whether we want to flag extensions in the first place 16:18:10 mhausenblas: what is the issue you are referring to> 16:18:16 dmcneil: i think that is issue 22 16:18:45 ericP: the metaissue is that if we have a syntax to distinquish between sql 2009 or an sql with vendor specific 16:19:06 ... if we have a flag for that, I have a syntax to do that 16:19:40 Ashok: a question 16:19:52 ... eric, you were speaking of a flag like a binary one 16:20:00 s/distinquish/distinguish/ 16:20:04 .. or are you speaking of an attribute with values 16:20:08 q+ 16:20:17 ignore cygri 16:20:19 ahm 16:20:20 ericP: the original proposal was a flag, i proposed an attribute 16:20:30 .. the dispute comes from cygri who feels it is not necessary 16:20:35 +q 16:20:47 ... the use cases that are enabled with an attribute are not compelling to richard 16:20:57 ... so i would like to see a decision on the basic question 16:21:33 Ashok: if we have an attribute, that could be a string, what you end up choosing for, how you actually act based on that, we do not specify 16:21:39 ... ie, there is no harm for this 16:21:52 ack cygri 16:21:53 ericP: per richard it makes the spec more difficult to read 16:22:35 cygri: there are a number of issues with this; one is that it puts additional burden on the authors, 'cause they have to say which sql dialect they are using, and I think most of the authors have no idea 16:22:47 agree with Richard about SQL writers not being aware of compatibility 16:22:52 ... most would have no interest or the knowledge of what to use 16:23:34 ... it is quite a complicated thing with different version of sql 16:23:45 q? 16:23:58 ... the other issue is that i would expect most of the implementation will be specific to a specific database system 16:24:09 ... they know what sql dialect they are connected to 16:24:10 EFranconi has joined #RDB2RDF 16:24:53 ... at that point the assumption is that if the author binds to an oracle specific database, then it is a reasonable assumption that the author will expect that the sql dialect is oracle's 16:25:05 ... the information is redundant, adds no value 16:25:11 ack dmcneil 16:25:13 q? 16:25:25 dmcneil: i suggest that there is a support to add a binary indicator 16:25:35 ... and then the specific dialect may be decided later 16:25:51 cygri: it is the same problem, the author may not know that either 16:26:10 Ashok: eric, can you live with what richard recommended 16:26:12 i'm trying 16:26:22 ericP: his recommendation is not to have a flag or an attribute 16:26:29 if we include it, we could make it optional, more like a comment, just informative "works on: Oracle DB 11.2.*" 16:26:36 ... if we had a flag, i was interested for an attribute 16:26:41 +q 16:26:44 ... if we do not have flag, I can live with that 16:26:56 ack dmcneil 16:27:13 dmcneil: we say in the spec that we will use sql 2008 16:27:29 ... but richard says, effectively, that the user can put anything there 16:27:42 cygri: we define r2rml/sql2008 16:27:45 was this flag to be mandatory? it seems a strong value-add if known/included, so having it and making it optional seems a win... 16:27:49 +??P0 16:28:09 ... if someone wants to use r2rml with sql lite 16:28:14 Zakim, ??P0 is EFranconi 16:28:14 +EFranconi; got it 16:28:20 present+ Enrico 16:28:25 RRSAgent, draft minutes 16:28:25 I have made the request to generate http://www.w3.org/2011/06/14-rdb2rdf-minutes.html mhausenblas 16:28:31 ... then they would be using r2rml/sql lite 16:28:39 ... it is fairly clear what the behaviour would be 16:28:46 ... but we do not necessarily say that 16:29:03 ... and we can add something like 'you know what you would be doing...' 16:29:15 q? 16:29:25 dmcneil: in our implementation we rely on that flag 16:29:32 ... i can definitely say it is useful for us 16:29:33 q+ 16:29:34 q+ 16:29:43 ack MacTed 16:30:05 MacTed: it seems problematic to make mandatory, but if the information there it may be useful 16:30:16 q+ 16:30:25 q? 16:30:28 ack ivan 16:30:32 ... so if it is optional, that is fine 16:30:33 Zakim, mute me 16:30:33 MacTed should now be muted 16:30:34 ack cygri 16:30:36 q? 16:30:41 RRSAgent, draft minutes 16:30:41 I have made the request to generate http://www.w3.org/2011/06/14-rdb2rdf-minutes.html mhausenblas 16:30:47 cygri: i like to have this thing as an optional 16:30:58 ... i am not particularly opposed to it 16:31:12 ... what is the process to get the concrete identifiers for the dialects 16:31:18 ... would we define those 16:31:20 q+ to say we define 1 16:31:39 mhausenblas: i would interpret eric's action to draft this with the optional attribute 16:31:45 ... eric, is that fine? 16:32:01 ericP: I can do that, i want to do one for sql2008 16:32:08 ... and the community can define to 16:32:15 mhausenblas: we can then resolve it next week 16:32:25 cygri: i am o.k. with that way of making progress 16:32:42 ... what is the chance that there will be some sort of a standardization of these values 16:32:48 ... to make things interoperable 16:32:59 Zakim, unmute me 16:32:59 MacTed should no longer be muted 16:33:04 ... eric just said that he would propose one value 16:33:07 I'd say cardinality should be 0-n (works for this, works for that, works for that too , ...) 16:33:23 MacTed: once one is define, the rest of use can throw in for others 16:33:29 Zakim, mute me 16:33:29 MacTed should now be muted 16:33:43 mhausenblas: let eric start the process and let the others propose theirs 16:33:53 Zakim, unmute me 16:33:53 MacTed should no longer be muted 16:33:59 cygri: i am not sure how to address every dialect 16:34:14 ... anyway, we can talk about that when we have something on the table 16:34:19 q+ 16:34:27 q? 16:34:31 ack me 16:34:31 ericP, you wanted to say we define 1 16:34:39 _:sMapping r:language ; r:SQLQuery "Contacts : {company} | Contacts.name='Sue'" . 16:34:45 ack ivan 16:35:33 PROPOSAL: re ISSUE-22 the WG decides to have an OPTIONAL flag. this does not yet resolve ISSUE-22 16:35:47 +1 16:35:50 q+ 16:35:57 ack Souri 16:36:13 Souri: is that mean that it is compatible to XXX, yes, or no? 16:36:14 q? 16:36:32 +q 16:36:34 Ashok: the idea is that you have an attribute and you can use that as you wish 16:36:42 ... the spec does not spell out the details 16:36:43 ack dmcneil 16:37:06 dmcneil: the issue I see we say sql queries for sql2008 16:37:23 ... if you go to an r2rml process you expect that to run 16:37:38 q+ 16:37:52 ... we would then water down 16:38:04 q? 16:38:12 q+ 16:38:19 ... it is implicit in there that there is vendor specific sql and do not use that 16:38:24 ack ivan 16:38:30 q? 16:38:58 ack cygri 16:39:01 ivan: i read this as "if i use something other than 2008, then i might make it explicit with this flag" 16:39:29 cygri: I think it will be common to have implementations that will use a single or a small number of sql engines 16:39:31 PROPOSAL: re ISSUE-22 the WG decides to have an OPTIONAL flag. this does not yet resolve ISSUE-22, if the flag is not used then all SQL is expected to be SQL-2008 compliant 16:39:41 ... these implementations will accept queries in a particular dialect 16:39:51 ... i may have sql lite 16:40:03 ... that would make use of the flag 16:40:13 ... i am opposed to have a flag that does not add any value 16:40:34 ... flags the individual queries is comletely wrong that do not address a specific scenario 16:40:44 -privera 16:40:45 +1 to Richard: we should make the common case less verbose (if SQL2008 => say it, if silent => it is NOT) 16:41:16 q? 16:41:38 q+ 16:41:43 mhausenblas: one side, like dmcneil , who says that it is useful, another implementor says it does not really make sense 16:41:56 cygri: i am not disputing that it can be useful 16:42:09 q? 16:42:35 cygri: i expect that it will be common to write the queries that are not sql 2008 16:42:41 ... and they do not want to flag 16:42:42 if SQL2008 compatible: say it (if unspecified: may not be SQL2008 compatible) 16:42:59 ... what I said is that we do not define that in our spec 16:43:11 ... we would say that the flag is of a small scope 16:43:26 ... what the proposal say that we define portability 16:43:38 q? 16:43:44 ... i am not o.k. having to flag for non sql all the time 16:43:46 I have no idea when I'm writing compliant SQL or not :) 16:43:56 q+ 16:44:17 ... it would be stupid to ask for this flag 16:44:32 ack Souri 16:44:46 +??P3 16:44:54 flag is optional -- if it's present, it gives information about the SQL conformance/dialect. if it's not present, the information is unknown. 16:44:54 attribute likewise -- if it's present, it gives more detailed information than a flag. 16:44:58 Souri: my comment is that I agree with richard, when I write a sql I am not really sure what version it is 16:45:04 Zakim, ??P3 is privera 16:45:04 +privera; got it 16:45:05 Zakim, who's noisy 16:45:05 ... i would like to get the common case 16:45:06 I don't understand 'who's noisy', MacTed 16:45:08 Zakim, who's noisy? 16:45:09 zakim, mute me 16:45:09 privera should now be muted 16:45:18 MacTed, listening for 10 seconds I heard sound from the following: MacTed (49%), privera (15%) 16:45:24 ... if I do not know what it is compatible is, 16:45:34 ... but if I know, then we have the option 16:45:42 q? 16:45:50 Zakim, mute me 16:45:50 MacTed should now be muted 16:45:51 .. if i do not say anything, then it may or it may not be compatible 16:46:06 souri, a la { _:sMapping r:language _:dunno } ? 16:46:11 ... if I want to say then I can choose to use the attribute 16:46:14 ack ivan 16:48:18 PROPOSAL: if attribute is present, we assume it's a specific dialect. if attribute is absent, we do not know what dialect it is. we only specify the behaviour of R2RML where the attribute says it's SQL-2008. 16:49:05 +1 16:49:32 PROPOSAL: Re ISSUE-22 the WG decides to introduce an OPTIONAL attribute. if attribute is present, we assume it's a specific dialect. if attribute is absent, we do not know what dialect it is. we only specify the behaviour of R2RML where the attribute says it's SQL-2008. 16:49:47 +0.75 16:49:58 +1 16:49:59 it rounds up 16:50:07 +0.75 16:50:08 +1 16:50:10 +1 16:50:14 RESOLVED: Re ISSUE-22 the WG decides to introduce an OPTIONAL attribute. if attribute is present, we assume it's a specific dialect. if attribute is absent, we do not know what dialect it is. we only specify the behaviour of R2RML where the attribute says it's SQL-2008. 16:50:26 RRSAgent, draft minutes 16:50:26 I have made the request to generate http://www.w3.org/2011/06/14-rdb2rdf-minutes.html mhausenblas 16:50:43 Topic: issue 42 16:50:47 issue-42? 16:50:47 ISSUE-42 -- How is the direct mapping suppose to handle NULL values wrt Information Preserving -- open 16:50:47 http://www.w3.org/2001/sw/rdb2rdf/track/issues/42 16:51:28 mhausenblas: as you all know we have a deadline in september 16:51:44 ... given that the group has spent about a month on issues 41 and 42 16:51:57 ... i am inclined to resolve that asap 16:52:13 ... i doubt that another month or even another year will solve this 16:52:28 ... my position that it is not solved yet, we cannot crack it 16:52:39 ... i would say we have two proposals on the table 16:53:11 ... enrico's proposal is that the dm does not apply if there is a null value in the database 16:53:15 q+ to make a no change proposal 16:53:23 ack ericP 16:53:23 ericP, you wanted to make a no change proposal 16:53:39 ... my proposal is to reflect the shema in the proposal and omit triples with null 16:53:49 s/shema/schema/ 16:53:56 in the latter case to omit triples with nulls, we shoudl add the note: add a note saying that in this case it is not known how to relate this interpretation to the semantics of the NULL of the rdb it comes from 16:54:02 ericP, there *would* be a change: adding the table information, which isn't there yet 16:54:17 q+ 16:54:22 mhausenblas: if people agree with the september deadline, we resolve it today 16:54:26 ack juansequeda 16:54:58 juansequeda: the current spec does not generate triples and the only thing to be added is the table information 16:55:06 ... and add some explanation to the text 16:55:55 ericP: the depth you can model schema is arbitrary, one can add owl statements 16:56:01 .. i can go deep into that 16:56:20 ... or shallowest i can do, is to assume that the person issuing the query knows the schema 16:56:31 PROPOSAL: Add to the Direct Mapping spec the generating of the schema triples and also add a note stating that "it is not known how to relate this interpretation to the semantics of the NULL of the rdb it comes from" 16:56:42 ... the range is no change at all to deep curation of the data model in the relation model 16:56:58 Schema generation (based on table and constraint definitions), non-generation of triples corr to NULL cells in table, and a note sounds good to me! 16:56:59 q+ 16:57:36 ack EFranconi 16:57:39 Ashok: there is one other possible action, that EFranconi proposed with all of its details 16:58:02 EFranconi: i do not disagree with the proposal, but it is a message of failure of this group 16:58:24 ... what you say that the mapping does not say anything about the semantics 16:58:42 +q 16:58:45 ... a serious implementer would not take this seriously, it is a bad message 16:59:01 ack dmcneil 16:59:21 q+ 16:59:26 q+ 16:59:30 dmcneil: i agree with the conclusion of enrico, can we try to soften the message with 'unknown' 17:00:08 mhausenblas: i would suggest that we ask EFranconi to write a non rec track note that explains the problem space, and we could point to this non rec track note 17:00:10 ack juansequeda 17:00:10 +1 to asking enrico to writing a note about the semantics of NULL 17:00:12 q? 17:00:32 juansequeda: i have the suspicion that we can get the issue solved offline with EFranconi 17:00:37 I agree that the note is too strong. 17:00:45 ... let us have this proposal as now 17:01:00 ... i am sure that the next week with enrico we can solve this problem 17:01:04 ack EFranconi 17:01:33 PROPOSAL: Re ISSUE-42, the WG decides add to the Direct Mapping spec the generating of the schema triples and also add a note stating that "it is not known how to relate this interpretation to the semantics of the NULL of the rdb it comes from" 17:01:37 EFranconi: i do not think we can find the solution within a week, but i believe we can have a note that formulates the problem 17:02:08 q+ to ask enrico for a concrete screw case with real-world example data 17:02:35 mhausenblas: i hope that EFranconi would lead the effort to write this note 17:02:42 +1 to the proposal (with a non-Rec track note) 17:02:44 ack ericP 17:02:44 ericP, you wanted to ask enrico for a concrete screw case with real-world example data 17:02:47 ... it must be a note to not screw up planning 17:03:32 ericP: reading the issue of EFranconi and I would like to see a real world example data where our assumption of using non assertions breaks some intuitive queries people would have 17:03:35 q? 17:03:40 ... ultimately we will need this 17:04:02 Ashok: that is a reasonable thing to have in a note 17:04:21 +1 17:04:37 cygri: I try to capture this discussion better 17:04:41 PROPOSAL: Re ISSUE-42, the WG decides add to the Direct Mapping spec the generating of rdfs:range (and possibly other) schema triples and also add a note to the Direct Mapping spec saying: "The DM does not generate triples for NULL values. For a detailed discussion of this issue, see the following document" which points to a separate working group note 17:04:48 ... 17:04:50 ... 17:05:08 +1 17:05:13 +1 17:05:14 +1 17:05:14 +1 to Richard's wording 17:05:16 +1 17:05:16 +1 17:05:17 +1 17:05:17 abstain :-) 17:05:18 +1 17:05:20 +1 17:05:26 +1 17:05:37 +1 17:06:09 RESOLVED: Re ISSUE-42, the WG decides add to the Direct Mapping spec the generating of rdfs:range (and possibly other) schema triples and also add a note to the Direct Mapping spec saying: "The DM does not generate triples for NULL values. For a detailed discussion of this issue, see the following document" which points to a separate working group note 17:06:15 for the record, i heard a +1 from ashok 17:06:20 (verbal) 17:06:24 +1 17:06:38 RRSAgent, draft minutes 17:06:38 I have made the request to generate http://www.w3.org/2011/06/14-rdb2rdf-minutes.html mhausenblas 17:06:41 mhausenblas: who would accept to take a lead this 17:06:49 EFranconi: for family reasons I cannot take a leading role 17:06:57 ... i am happy to contribute 17:07:23 juansequeda: i am talking on behalf of marcello, we can take the lead on that 17:07:55 action on juansequeda ask marcello whether he is happy be co-editor of the NULL Note 17:07:55 Sorry, couldn't find user - on 17:08:04 jsequeda 17:08:11 action member:juansequeda ask marcello whether he is happy be co-editor of the NULL Note 17:08:11 Sorry, bad ACTION syntax 17:08:38 action juansqueda ask marcello whether he is happy be co-editor of the NULL Note 17:08:38 Sorry, couldn't find user - juansqueda 17:08:53 ACTION: ivan to learn Zakimish 17:08:53 Sorry, amibiguous username (more than one match) - ivan 17:08:53 Try using a different identifier, such as family name or username (eg. ivan, imikhail) 17:08:57 action: juan to ask marcello whether he is happy to be co-editor of the NULL Note 17:08:58 Created ACTION-134 - Ask marcello whether he is happy to be co-editor of the NULL Note [on Juan Sequeda - due 2011-06-21]. 17:09:01 actioncolon... 17:09:22 -dmcneil 17:09:23 -Alexandre 17:09:26 -privera 17:09:28 -Ashok_Malhotra 17:09:35 -EFranconi 17:09:39 -Ivan 17:09:39 privera has left #RDB2RDF 17:09:43 -juansequeda 17:09:50 -MacTed 17:10:00 -EricP 17:10:01 -mhausenblas 17:10:04 -Seema 17:10:31 -boris 17:14:40 privera has joined #RDB2RDF 17:15:27 -Souri 17:15:47 privera has left #RDB2RDF 17:16:30 -LeeF 17:16:31 SW_RDB2RDF()12:00PM has ended 17:16:33 Attendees were +3539149aaaa, mhausenblas, Ivan, cygri_, +49.153.6.aabb, boris, privera, +1.781.273.aacc, MacTed, Ashok_Malhotra, +1.314.394.aadd, dmcneil, nunolopes, EricP, 17:16:35 ... +1.603.897.aaee, Alexandre, +1.603.897.aaff, Seema, Souri, +575737aagg, juansequeda, LeeF, EFranconi 17:21:39 [adjourned] 17:21:46 RRSAgent, draft minutes 17:21:46 I have made the request to generate http://www.w3.org/2011/06/14-rdb2rdf-minutes.html mhausenblas 17:24:03 trackbot, end telecon 17:24:03 Zakim, list attendees 17:24:03 sorry, trackbot, I don't know what conference this is 17:24:04 RRSAgent, please draft minutes 17:24:04 I have made the request to generate http://www.w3.org/2011/06/14-rdb2rdf-minutes.html trackbot 17:24:05 RRSAgent, bye 17:24:05 I see 3 open action items saved in http://www.w3.org/2011/06/14-rdb2rdf-actions.rdf : 17:24:05 ACTION: member to juansequeda ask marcello whether he is happy be co-editor of the NULL Note [1] 17:24:05 recorded in http://www.w3.org/2011/06/14-rdb2rdf-irc#T17-08-11 17:24:05 ACTION: ivan to learn Zakimish [2] 17:24:05 recorded in http://www.w3.org/2011/06/14-rdb2rdf-irc#T17-08-53 17:24:05 ACTION: juan to ask marcello whether he is happy to be co-editor of the NULL Note [3] 17:24:05 recorded in http://www.w3.org/2011/06/14-rdb2rdf-irc#T17-08-57