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14:57:46 <RRSAgent> logging to http://www.w3.org/2008/05/23-rdb2rdf-irc
14:58:01 <Ashok> zakim, this is rdb2rdf
14:58:01 <Zakim> ok, Ashok; that matches INC_RDB2RDF()11:00AM
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14:58:22 <Ashok> meeting: RDB2RDF May 23, 2008
14:58:35 <Ashok> Chair: Ashok
14:58:36 <Zakim> + +1.937.775.aaaa
14:59:06 <Ashok> Andrew, can I impose upon you to scribe today?
14:59:30 <AndrewE> Sure
14:59:40 <Ashok> Thanks!
14:59:42 <Zakim> + +1.509.771.aabb
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14:59:50 <Ashok> scribenick: AndrewE
15:01:06 <Zakim> +??P4
15:02:06 <Zakim> + +1.781.904.aacc
15:02:07 <Zakim> +Ashok_Malhotra
15:02:35 <Zakim> +??P8
15:02:49 <AndrewE> zakim, list participants
15:02:49 <Zakim> As of this point the attendees have been Andrew_Eisenberg, +1.937.775.aaaa, +1.509.771.aabb, +1.781.904.aacc, Ashok_Malhotra
15:02:54 <Zakim> + +1.408.285.aadd
15:03:24 <AxelPolleres> AxelPolleres has joined #RDB2RDF
15:03:35 <Zakim> +??P10
15:04:07 <AxelPolleres> I just joined together with Richard.
15:04:25 <Zakim> +[IBM_Watson]
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15:05:09 <joebetz> +1.509.771.aabb is Joe Betz
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15:06:36 <cygri> slides: http://richard.cyganiak.de/2008/05/rdb2rdf-slides.pdf
15:06:54 <AxelPolleres> ivan is on skype
15:07:03 <Zakim> +[IPcaller]
15:07:27 <danbri> zakim, [IPcaller] is danbri
15:07:27 <Zakim> +danbri; got it
15:08:28 <AxelPolleres> who is scribing?
15:08:38 <AndrewE> New members Dan Brickley and Davide Palmisano
15:09:08 <AndrewE> Last week's minutes: http://lists.w3.org/Archives/Public/public-xg-rdb2rdf/2008May/0014.html
15:09:11 <AndrewE> approved
15:09:41 <AndrewE> 4. XG Logistics
15:10:01 <AxelPolleres> q+
15:10:05 <AndrewE> Cancel June 6 Telcon?
15:10:22 <AndrewE> Askok and Andrew will not be able to attend
15:10:53 <danbri> Re who attends http://www.eswc2008.org/
15:11:02 <danbri> I'll be there, also Axel, Jenny, ...
15:11:08 <AndrewE> June 6 call is cancelled
15:12:06 <AndrewE> Can Li Ma present June 13?
15:12:31 <AndrewE> Li Ma says that he can
15:13:11 <AndrewE> 5. Action Items:
15:13:17 <AndrewE> a. Whole group to start thinking about what the group wants to include
15:13:17 <AndrewE> in the final output from the group.
15:13:50 <AndrewE> b. Whole group to start thinking about what the group wants to include
15:13:50 <AndrewE> in the final output from the group in terms of standards.
15:13:57 <AndrewE> c. Whole group to provide comments on the state of the art that has now
15:13:57 <AndrewE> been put up on the wiki page.
15:14:09 <AndrewE> a,b,c are ongoing
15:14:15 <AndrewE> d. Soeren to send mail re. standardizing an update interface
15:14:22 <AndrewE> this has been done
15:15:10 <AndrewE> Ashok: There is no SPARQL update specification
15:15:26 <AndrewE> Ashok will reply to Soeren's email
15:15:30 <AxelPolleres> SPARQL update is one of the likely firsdt targets of a continuation of DAWGs, if one may believe rumors...
15:15:32 <AxelPolleres> ;-)
15:15:55 <AxelPolleres> s/DAWGs/DAWG/
15:17:04 <Ashok> Soeren's mail: http://lists.w3.org/Archives/Public/public-xg-rdb2rdf/2008May/0018.html
15:17:04 <soeren> http://lists.w3.org/Archives/Public/public-xg-rdb2rdf/2008May/0018.html
15:19:14 <AndrewE> 6. Satya Sahoo and Wolfgang Halb – Update on Literature Survey
15:20:03 <AndrewE> Satya: Link to Learning Highly Structured ... is missing
15:21:50 <ssahoo2> RDB2Onto: Cerbah, F
15:22:06 <ssahoo2> publication details: "Learning Highly Structured Semantic Repositories from Relational Databases - demo paper", Proceedings of the 5th European Semantic Web Conference (ESWC 2008), Tenerife, Spain, Accepted - to be published in June, 2008.
15:22:07 <AndrewE> Invite Cherba to meeting on June 20
15:22:27 <AndrewE> 7. Presentation by Richard Cyganiak on D2RQ
15:22:47 <cygri> http://richard.cyganiak.de/2008/05/rdb2rdf-slides.pdf
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15:23:01 <Ashok> http://richard.cyganiak.de/2008/05/rdb2rdf-slides.pdf
15:27:43 <danbri> (i'd love to see it released under w3c license...)
15:28:46 <AndrewE> download rate accelerated when SPARQL support was added
15:36:02 <AndrewE> Users request ability to add subqueries in from and where clause
15:36:36 <AndrewE> also ability to use type codes translations
15:37:39 <danbri> q+ to ask about putting the logic in SQL views vs mapping files
15:42:51 <AxelPolleres> q-
15:45:19 <AndrewE> d2rq:condition provides a SQL fragment, but subqueries may be problematic
15:50:00 <danbri> slide15: map:mbox_sha1 a d2rq:PropertyBridge;  d2rq:sqlExpression   “SHA1(CONCAT(‘mailto:’, User.email))”;   d2rq:property foaf:mbox_sha1sum .
15:50:03 <danbri> cute :)
15:55:41 <danbri> richard "if we redesigned the language from scratch, we'd get schema data from jdbc and not require it in the mapping file"
15:58:10 <AndrewE> Ashok: Can we have a pointer to D2RQ documentation?
15:58:23 <danbri> q?
15:58:43 <AndrewE> Richard: We have not given much thought to update
15:58:50 <danbri> (imho, steer clear of update... )
15:59:10 <danbri> q: do you support named graphs?
15:59:14 <AndrewE> ?: Do you support named graphs?
15:59:16 <danbri> a: no, it all goes into default graph surrently
15:59:18 <AndrewE> Richard: No
16:00:22 <AndrewE> Jenny: How much effort is being spent on improvements?
16:00:44 <AndrewE> Richard: Maintaining it in my spare time, no new features
16:01:50 <AndrewE> q: Does D2RQ create indices in order to improve performance?
16:02:34 <AndrewE> Richard: No, but generated SQL will use existing indices
16:04:36 <AndrewE> q: Can additional metadata from database be used?
16:04:52 <AndrewE> Richard: Data types can now be extracted
16:05:22 <AndrewE> Richard: use of primary key or uniqueness could allow us to generate better performing SQL
16:06:41 <AndrewE> Richard: It would be possible to define a mapping by providing a delta to auto-generated mapping
16:08:01 <AndrewE> q: To what extent can mapping be pushed into view definitions?
16:08:48 <AndrewE> Richard: We assumed that D2RQ would not modify the database
16:09:16 <AndrewE> MySQL did not provide temporary views
16:10:05 <cygri> D2RQ manual: http://www4.wiwiss.fu-berlin.de/bizer/D2RQ/spec/
16:10:25 <AndrewE> 8. Future presentations
16:10:34 <cygri> D2RQ homepage: http://www4.wiwiss.fu-berlin.de/bizer/d2rq/
16:10:35 <AndrewE> - - Huajun Chen on DartGrid May 30
16:10:44 <AndrewE> 9. AOB
16:10:46 <AxelPolleres> Thanks! bye!
16:10:49 <Zakim> - +1.408.285.aadd
16:10:56 <Zakim> -danbri
16:10:57 <Zakim> - +1.781.904.aacc
16:10:58 <Zakim> -??P8
16:10:59 <cygri> thanks all!
16:10:59 <Zakim> -Ashok_Malhotra
16:10:59 <Zakim> - +1.509.771.aabb
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16:11:00 <Zakim> -??P4
16:11:01 <Zakim> -Andrew_Eisenberg
16:11:03 <Zakim> -[IBM_Watson]
16:11:07 <Zakim> -AxelPolleres
16:11:10 <Zakim> - +1.937.775.aaaa
16:11:11 <danbri> cygri, got a minute?
16:11:12 <Zakim> INC_RDB2RDF()11:00AM has ended
16:11:13 <Zakim> Attendees were Andrew_Eisenberg, +1.937.775.aaaa, +1.509.771.aabb, +1.781.904.aacc, Ashok_Malhotra, +1.408.285.aadd, AxelPolleres, [IBM_Watson], danbri
16:11:36 <Ashok> rrsagent, make logs public
16:12:46 <Ashok> rrsagent, create minutes
16:12:46 <RRSAgent> I have made the request to generate http://www.w3.org/2008/05/23-rdb2rdf-minutes.html Ashok
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