Bug in DM test D024?

• From: Richard Cyganiak <richard@cyganiak.de>
• Date: Thu, 7 Jun 2012 17:32:38 +0200
• To: Boris Villazón-Terrazas <bvillazon@fi.upm.es>, Eric Prud'hommeaux <eric@w3.org>
• Cc: "public-rdb2rdf-wg@w3.org WG" <public-rdb2rdf-wg@w3.org>
• Message-Id: <2ADE4357-4D74-41A2-BF51-FB67A1C8AB1A@cyganiak.de>

Hi Boris, Eric,

The DM spec says that the row graph contains:

[[
a reference triple for each <column name list> in a table's foreign keys where none of the column values is NULL.
]]

In create.sql for D024 we have:

[[
INSERT INTO "Source" ("ID", "attrA", "attrB")
             VALUES (1101, 'K2A22', NULL   );
]]

And then we have a triple in directGraph.ttl:

[[
<Source/ID=1101> <Source#ref-attrA;attrB> <Target/PK=1011> .
]]

I believe this triple shouldn't be there, because one of the involved column values is NULL.

Or am I misunderstanding something?

Best,
Richard

Received on Thursday, 7 June 2012 15:33:10 UTC