Hi, I reorganized my query as you say, using "one of filter" (FILTER IN) method. The query, that I send my local drugbank endpoint contains 4348 element in its filter block. I have tried several scenarios as configuring the element count in filter block. When element count in filter block is bigger than 510, I receive "HTTP 500: SPARQL request failed, Transaction timeout" error. I tried already increasing MaxQueryExecutionTime parameter into 600 seconds, I received the same error again. So I tried this query on "http://lod.openlinksw.com/sparql"; endpoint, which already contains drugbank dump. Because I think the problem may caused by that the computer power, that I use is not enough to respond this big filter block. When I send query greater than 4094 FILTER block to the " http://lod.openlinksw.com/sparql";, I receive "HTTP 400: Too many arguments of a standart built-in function operator". I shared the query consist of 4096 filter count at this link: https://docs.google.com/file/d/0B3zcaLjQc0_yV2c2UjBMV2lZUlE/edit So If you want to try and see the error, you can execute the query directly on "http://lod.openlinksw.com/sparql";. If you remove 2 elements from filter block you will get the results. Is there any way to increase element count, which will be enough to execute query with filter block consisting of 4348 elements. Does Virtuoso contains any parameter realted to this element count in filter.
Best, Burak Yönyül 2012/12/17 Patrick van Kleef <pkl...@openlinksw.com> > Hello Burak Yönyül, > > > > I cannot execute queries which are greater than a few kilobytes on > Virtuoso. I've loaded example drugbank dataset into Virtuoso Opensource 6.1 > and I'm trying to execute the query in the file I've attached here, on my > local drugbank dataset with the sparql endpoint " > http://155.223.24.47:8893/drugbank/sparql";. But when I execute this I get > "HTTPException: 400 Bad Request". How can I execute queries greater than 25 > KB? > > I promised i would also have a look at the query itself and see if it > could be simplified. > > Your query consists of a union of repeating patterns like this: > > { ?y_0 <http://www.w3.org/2002/07/owl#sameAs> < > http://dbpedia.org/resource/Tetrahydrocannabinol> . > ?Int_0 < > http://www4.wiwiss.fu-berlin.de/drugbank/resource/drugbank/interactionDrug1> > ?y_0 . > ?Int_0 < > http://www4.wiwiss.fu-berlin.de/drugbank/resource/drugbank/interactionDrug2> > ?IntDrug_0 . > ?Int_0 <http://www4.wiwiss.fu-berlin.de/drugbank/resource/drugbank/text> > ?IntEffect_0 > } > UNION > { ?y_1 <http://www.w3.org/2002/07/owl#sameAs> < > http://dbpedia.org/resource/Mescaline> . > ?Int_1 < > http://www4.wiwiss.fu-berlin.de/drugbank/resource/drugbank/interactionDrug1> > ?y_1 . > ?Int_1 < > http://www4.wiwiss.fu-berlin.de/drugbank/resource/drugbank/interactionDrug2> > ?IntDrug_1 . > ?Int_1 <http://www4.wiwiss.fu-berlin.de/drugbank/resource/drugbank/text> > ?IntEffect_1 > } > } > UNION > { ?y_2 <http://www.w3.org/2002/07/owl#sameAs> < > http://dbpedia.org/resource/Bacillus_Calmette-Gu%C3%A9rin> . > ?Int_2 < > http://www4.wiwiss.fu-berlin.de/drugbank/resource/drugbank/interactionDrug1> > ?y_2 . > ?Int_2 < > http://www4.wiwiss.fu-berlin.de/drugbank/resource/drugbank/interactionDrug2> > ?IntDrug_2 . > ?Int_2 <http://www4.wiwiss.fu-berlin.de/drugbank/resource/drugbank/text> > ?IntEffect_2 > } > } > UNION > { ?y_3 <http://www.w3.org/2002/07/owl#sameAs> < > http://dbpedia.org/resource/Sugammadex> . > ?Int_3 < > http://www4.wiwiss.fu-berlin.de/drugbank/resource/drugbank/interactionDrug1> > ?y_3 . > ?Int_3 < > http://www4.wiwiss.fu-berlin.de/drugbank/resource/drugbank/interactionDrug2> > ?IntDrug_3 . > ?Int_3 <http://www4.wiwiss.fu-berlin.de/drugbank/resource/drugbank/text> > ?IntEffect_3 > } > } > UNION > { ?y_4 <http://www.w3.org/2002/07/owl#sameAs> < > http://dbpedia.org/resource/Carnitine> . > ?Int_4 < > http://www4.wiwiss.fu-berlin.de/drugbank/resource/drugbank/interactionDrug1> > ?y_4 . > ?Int_4 < > http://www4.wiwiss.fu-berlin.de/drugbank/resource/drugbank/interactionDrug2> > ?IntDrug_4 . > ?Int_4 <http://www4.wiwiss.fu-berlin.de/drugbank/resource/drugbank/text> > ?IntEffect_4 > } > } > > etc. > > In this case you should be able to use the SPARQL 1.1 IN construction[1] > as in: > > SELECT * WHERE { > ?y_0 <http://www.w3.org/2002/07/owl#sameAs> ?d_1 . > FILTER (?d_1 in ( > <http://dbpedia.org/resource/Tetrahydrocannabinol> , > <http://dbpedia.org/resource/Mescaline>, > <http://dbpedia.org/resource/Bacillus_Calmette-Gu%C3%A9rin>, > <http://dbpedia.org/resource/Sugammadex>, > <http://dbpedia.org/resource/Carnitine> > )). > > ?Int_0 < > http://www4.wiwiss.fu-berlin.de/drugbank/resource/drugbank/interactionDrug1> > ?y_0 . > ?Int_0 < > http://www4.wiwiss.fu-berlin.de/drugbank/resource/drugbank/interactionDrug2> > ?IntDrug_0 . > ?Int_0 <http://www4.wiwiss.fu-berlin.de/drugbank/resource/drugbank/text> > ?IntEffect_0 > } > > which results in a much shorter query. > > See also: > [1] http://www.w3.org/TR/sparql11-query/#func-in > > > Best regards, > > Patrick
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