- From: David McNeil <dmcneil@revelytix.com>
- Date: Mon, 11 Jul 2011 10:33:30 -0500
- To: Richard Cyganiak <richard@cyganiak.de>
- Cc: RDB2RDF WG <public-rdb2rdf-wg@w3.org>
Received on Monday, 11 July 2011 15:34:04 UTC
> [] rr:logicalTable [ rr:sqlQuery "SELECT *, 'asdf/' || id AS uri FROM > table" ]; > rr:subjectMap [ rr:column "uri" ]. > > [] rr:logicalTable [ rr:tableName "table" ]; > rr:subjectMap [ rr:template "asdf/{id}" ]. > > In the absence of NULLs (and ignoring the question of percent-encoding), > both are equivalent. And the former silently suppresses NULLs because > concatenating a string with NULL is NULL. So I'd expect the second to do the > same. (Any expression involving NULL is NULL, except magic ones like IS NULL > or COALESCE.) > I see, yes that makes sense. Thanks. -David
Received on Monday, 11 July 2011 15:34:04 UTC