On 02/05/11 11:01, Christoph Höger wrote:
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That indeed helped me to get over the 1000 triple margin without any
significant performance penalty.
Could you explain when exactly that 3-ways cross product problem occurs?
Here:
?a rdf:type modelica:Port .
?b rdf:type modelica:Port .
?c rdf:type modelica:Port .
will have X^3 possibilities where X is teh cardinality of
?? rdf:type modelica:Port .
Andy
Am 02.05.2011 11:22, schrieb Andy Seaborne:
Could you try removing the "rdf:type" or putting them last?
It might be calculating a 3-ways cross product of the database.
- --
Christoph Höger
Technische Universität Berlin
Fakultät IV - Elektrotechnik und Informatik
Übersetzerbau und Programmiersprachen
Sekr. TEL12-2, Ernst-Reuter-Platz 7, 10587 Berlin
Tel.: +49 (30) 314-24890
E-Mail: [email protected]
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