- From: Tomasz Pluskiewicz <tomasz.pluskiewicz@gmail.com>
- Date: Fri, 8 Jun 2012 22:19:46 +0200
- To: Juan Sequeda <juanfederico@gmail.com>
- Cc: David McNeil <dmcneil@revelytix.com>, public-rdb2rdf-comments@w3.org
Thank you for answering. Also, let me answer here again. I forgot to mention I intended the mapping as default mapping for table without primary key. In my oppinion by default direct mapping should generate a blank node for each row. And I do have mixed feelings about the behavior not preserving duplicate rows. Regards, Tomasz On Fri, Jun 8, 2012 at 6:26 PM, Juan Sequeda <juanfederico@gmail.com> wrote: > I asked on the forum, but let me ask here. > > are you expecting the R2RML engine to generate a blank node for each tuple, > or do you have a column value that you would like to use in order to > generate the blank node? > > Juan Sequeda > +1-575-SEQ-UEDA > www.juansequeda.com > > > > On Fri, Jun 8, 2012 at 9:22 AM, David McNeil <dmcneil@revelytix.com> wrote: >> >> >From the latest R2RML draft: >> >> * a subject map is a term map, >> http://www.w3.org/2001/sw/rdb2rdf/r2rml/#dfn-term-map >> >> * the termType property can be used on term maps, >> http://www.w3.org/2001/sw/rdb2rdf/r2rml/#termtype >> >> So "yes", you can use termType on subject maps and this is how you would >> produce subjects as blank nodes. >> >> -David > >
Received on Friday, 8 June 2012 20:20:55 UTC