All, I see some odd behaviour when not specifying any graph names with DESCRIBE queries. In this situation, the documented behaviour is that all graphs should be queried. Thus, I would expect the results returned from a query of all graphs to always be a superset of a resultset when a default graph is specified.
However, it doesn't seem that this is happening. Take for example this query: DESCRIBE <http://www.wizardis.com.au/2005/12/MAVIS#TitleWorkkey41415> it can be run at http://msoneutv.computas.no:8890/sparql In the above case only the rdf:types of the query is returned, but there is much more in the database, as is made clear with the following query: DESCRIBE <http://www.wizardis.com.au/2005/12/MAVIS#TitleWorkkey41415> FROM <http://msone.computas.no/graphs/instance/nfi> The explain result for the former query is: SQL> explain('sparql DESCRIBE <http://www.wizardis.com.au/2005/12/MAVIS#TitleWorkkey41415>'); REPORT VARCHAR _______________________________________________________________________________ { Fork { Precode: 0: $26 "callret" := Call vector () 5: $27 "callret" := Call DB.DBA.RDF_MAKE_IID_OF_QNAME (<constant (http://www.wizardis.com.au/2005/12/MAVIS#TitleWorkkey41415)>) 12: $28 "callret" := Call vector ($27 "callret") 17: BReturn 0 Subquery { from DB.DBA.RDF_QUAD by RDF_QUAD_OGPS 4.3e+04 rows Key RDF_QUAD_OGPS ASC () Current of: <$33 "<DB.DBA.RDF_QUAD >" spec 5> Subquery Select(TOP <constant (1)>) ( <none> , <$33 "<DB.DBA.RDF_QUAD >" spec 5>) } After code: 0: if ($43 "user_aggr_notfirst" 1(=) <constant (1)>) then 15 else 4 unkn 4 4: $43 "user_aggr_notfirst" := := artm <constant (1)> 8: $45 "user_aggr_ret" := Call DB.DBA.SPARQL_DESC_AGG_INIT ($44 "user_aggr_env") 15: $45 "user_aggr_ret" := Call DB.DBA.SPARQL_DESC_AGG_ACC ($44 "user_aggr_env", $26 "callret") 22: BReturn 0 } After code: 0: $46 "callret" := Call DB.DBA.SPARQL_DESC_AGG_FIN ($44 "user_aggr_env") 7: $47 "callret" := Call DB.DBA.SPARQL_DESC_DICT ($46 "callret", $28 "callret", <constant (0)>, <constant DB_NULL>, <constant (0)>, $26 "callret") 14: $48 "callret-0" := Call DB.DBA.RDF_FORMAT_TRIPLE_DICT_AS_TTL ($47 "callret") 21: BReturn 0 Select (TOP <constant (1)>) ($48 "callret-0") } 35 Rows. -- 2 msec. Kind regards Kjetil Kjernsmo -- Senior Knowledge Engineer Mobile: +47 986 48 234 Email: kjetil.kjern...@computas.com Web: http://www.computas.com/ | SHARE YOUR KNOWLEDGE | Computas AS PO Box 482, N-1327 Lysaker | Phone:+47 6783 1000 | Fax:+47 6783 1001
