Re: [Virtuoso-users] SPARQL Linked Data: howto configure sponger behind IRI deref for variables

unless you can simply designate sponger to use a proxy, which would solve all use cases from what I can tell. Best, Nathan

Re: [Virtuoso-users] Examples of how to connect SQL from PHP (under apache)?

specific connectors we'd have vendor portability and wouldn't need those 'clever' abstraction layers like PDO. Best & Good luck, Nathan

Re: [Virtuoso-users] Max row length exceeded error

Just a quick follow up, any progress / new snapshot to test or similar? Best, Nathan Nathan wrote: Hi Ivan, That's stopped the exception, however the output is a little messed up now: here's a direct link: http://bit.ly/ccBdXy you can see the XML fragment in the 'encoded&#x

Re: [Virtuoso-users] Anyone Running Virtuoso Open Source Under Ubuntu Lucid Eucalyptus?

Peter DeVries wrote: Hi have a new server that I am thinking of setting up with Virtuoso Open Source under Ubuntu Lucid Server Eucalyptus. I have been able to get Virtuoso Open Source running under Ubuntu Lucid server via the apt package. Does anyone have any experience getting this to work und

Re: [Virtuoso-users] PUTting RDF

Kingsley Idehen wrote: Nathan wrote: Hi, What's the simplest way to get the contents of an RDF document in to a specified graph in the quad store? If you accept the Resource URL as its Named Graph IRI then just use the sponger. Basically, just enable the pragma: define get:soft &qu

Re: [Virtuoso-users] Max row length exceeded error

e a string of 4951 chars into a temp col" Best, Nathan Ivan Mikhailov wrote: Hello Mathan, I've found and tested a workaround for similar case on other dataset: sparql [prefix declarations skipped] select * from <http://lib.uchicago.edu/campub> where { ?item local:par

Re: [Virtuoso-users] PUTting RDF

d sponging it does nothing, only works with no default graph specified, but then it's in the wrong graph..) Best, Nathan Hugh Williams wrote: Hi Nathan, Would inserting via the Virtuoso SPARQL endpoint suffice, as detailed at: http://virtuoso.openlinksw.com/dataspac

[Virtuoso-users] PUTting RDF

serialized chunk of RDF to a location and have triples end up in the specified graph, any simple way? Best, Nathan

[Virtuoso-users] Max row length exceeded error

dstore contains 38,326,545 over all graphs though): select * where { ?item foaf:maker <http://webr3.org/nathan#me> ; dcterms:created ?created ; dcterms:title ?title ; rdfs:seeAlso ?link . OPTIONAL { ?item dcterms:abstract ?abstract } OPTIONAL { ?item content:encoded ?encoded } } o

Re: [Virtuoso-users] full-text search

. ?o bif:contains 'searchterm' option (score ?mscore) } I think that should do it, untested Best, Nathan

Re: [Virtuoso-users] full-text search

Kingsley Idehen wrote: Nathan wrote: Kingsley Idehen wrote: mats@gmail.com wrote: Not sure if that will help do what I want. I'd like something that can be used with a search box that can be used for free-text queries to find items of a specific class. For example to look for movi

Re: [Virtuoso-users] full-text search

oso for precisely this reason (initially) all though now I could give a hundred more (but please don't ask me to list a full 100 reasons). Best, Nathan

[Virtuoso-users] [Fwd: How to serve hash URIs from a (Virtuoso) SPARQL endpoint?]

forwarding to virtuoso user list where you may get a quicker / more relevant answer :) Original Message Subject: How to serve hash URIs from a (Virtuoso) SPARQL endpoint? Resent-Date: Wed, 19 May 2010 11:44:26 + Resent-From: public-...@w3.org List-Post: virtuoso-users@lists

Re: [Virtuoso-users] How to work around..

Cheers Ivan, That covers it :) Best, Nathan Ivan Mikhailov wrote: Hello Nathan, Why not try SELECT * WHERE { graph <http://default.graph/> { <http://some.uri> ?p ?o } . graph ?ont { ?p ?o2 ?s2 } . filter (some condition on ?ont) } (and make empty "default graph"

[Virtuoso-users] How to work around..

ta I get zero T boxes (and there in zero A boxes too because of the non optional query) and if I leave the http://default.graph/ out then I get double everything. I have a feeling you're going to suggest rdf_sink'ing the ontologies in to the same graph :p Best, Nathan

Re: [Virtuoso-users] Inferencing Question with InverseFunctionalProperty

Hijacking the thread a little.. Are there any documents defining how much of owl(2) is supported for inference and reasoning in virtuoso? For example could it handle the following: _:myfriends owl:equivalentClass [ a owl:Restriction ; owl:hasValue <http://webr3.org/nathan

Re: [Virtuoso-users] Querying on all the data in the rdf_sink

http://mysite.com/data virt:rdf_sponger to "on" then you can user http://mysite.com/data as the default graph in your sparql queries :) Best, Nathan Rameswara Sashi Kiran Challa wrote: Hello all, I had earlier asked a question to this mailing list on how to have a common GRAPH IRI

Re: [Virtuoso-users] Import DBpedia into Virtuoso

uration of bulk loading - normally ~70% of RAM. also killing any services you're not using at the time (especially things like mysql with large caches). Best, Nathan Hugh Williams wrote: Hi Benedikt, As Alexander indicated in his response you should look at the amount of system resour

Re: [Virtuoso-users] Geo queries efficiency

Nathan wrote: > Alexander Sidorov wrote: >> Hello! >> >> What is the most efficient way of filtering geomerty objects by >> latitude/longitude? I need to retrieve LinkedGeoData objects inside some >> rectangular boundaries. Here is how I filter objects now : >

Re: [Virtuoso-users] Geo queries efficiency

would have though st_within [1] would have been fastest, but you could just run the three versions and time each one to see which is fastest. http://docs.openlinksw.com/virtuoso/fn_st_within.html Best, Nathan

Re: [Virtuoso-users] lod.openlinksw.com/sparql LIMIT not working correctly

n you clarify if it's a virtuoso cluster specific issue; because everything seems fine on my 5.* and 6.* virtuoso open-source instances. Regards, Nathan

[Virtuoso-users] quickest way to migrate data from 5 to 6?

Hi, Simply looking for the easiest / quickest way to migrate data from vos 5 to 6.1; it's critical that i don't loose the data in webdav + the quadstore. any pointers? Regards, Nathan

Re: [Virtuoso-users] Wiki doc errors

:) great, dbpedia import and virtuoso 6.1.1 install went flawlessly again btw; most happy! Regards, Nathan Hugh Williams wrote: > Hi Nathan, > > Thanks for pointing out those errors in the docs which have now been fixed ... > > Best Regards > Hugh Williams > Professiona

[Virtuoso-users] Wiki doc errors

dataspace/dav/wiki/Main/VirtBulkRDFLoaderScript has two missing semi-colons; after the following procedure defs create procedure rdf_read_dir (in path varcha... create procedure ld_ttlp_flags (in fname varcha... All the best, Nathan

Re: [Virtuoso-users] Alias for a set of named graphs

e other triples all in the main (pre-specified) named graph. Very nice approach; and I found it works wonders :) Many Regards, Nathan

[Virtuoso-users] Response headers

e there are multiple representations, but a weak ETag could be used). Many Regards, Nathan

[Virtuoso-users] optional + filter problem in 6.1

of Feb 16 2010 w/ the last patch you sent me to speed up IN functionality. Many Regards, Nathan

Re: [Virtuoso-users] Error reports

Hi Peter! Peter Ansell wrote: > Hi Nathan, > - Original Message >> From: Nathan >> To: Virtuoso Users List >> Sent: Mon, 1 March, 2010 11:30:58 AM >> Subject: [Virtuoso-users] Error reports >> >> Hi All, >> >> Just a quick upda

[Virtuoso-users] Error reports

?L1 count(?x1) as ?votes where { u:49991734 t:following ?x1 . ?L1 t:following ?x1 } group by ?L1 order by desc( ?votes ) LIMIT 500 } FILTER( <http://bit.of/an/error> in( ?L1 ) ) } } the above will return back <http://bit.of/an/error> for all ?L1 Many Regards! Nathan

Re: [Virtuoso-users] Complex search based on Virtuoso Free Text Search

Nathan wrote: > > SELECT DISTINCT ?s (sum(?oscore)) as ?finalWeight WHERE { > { select ?s (xsd:integer( ?oscore * 1.4 )) as ?weight where { > ?s ?o . ?o bif:contains '"search text"' option(score ?oscore) > } } UNION { > { select ?s (xsd:integer( ?oscore

Re: [Virtuoso-users] Complex search based on Virtuoso Free Text Search

d probably want to limit the available predicates with a FILTER( ? in( list,of,predicates) ) though! Many Regards & hope that helps a bit, Nathan

Re: [Virtuoso-users] Undefined Procedure with GIS/Geospatial on Virtuoso 6.1 OSS edition...

Kingsley Idehen wrote: > Ceriel Jacobs wrote: >> Op 25 feb 2010, om 06:51 heeft Kingsley Idehen het volgende geschreven: >> >> >>> Ceriel Jacobs wrote: >>> On Wed, 24 Feb 2010 17:01:42 -0500 Kingsley Idehen wrote: > Anyway, lets discuss as I am very open to thoughts fro

Re: [Virtuoso-users] 6.1.0: README: getting started: command line isql example: inconsistent port 1112?

also worth noting that people should use the isql bundled with virtuoso and not the standard one which is often found on linux boxes - that's quite a gotcha! regards, nathan Hugh Williams wrote: > Hi Ceriel, > > Yes, this will be a typo from when the demo database we use to pro

Re: [Virtuoso-users] Storing uris

Alexander Sidorov wrote: > > I use SPARUL. > In that case it's just a simple <http://a.uri> which denotes the type of the uri :) virtuoso will do the rest > > 2010/2/26 Nathan >> Alexander Sidorov wrote: >>> Hello! >>> >>> What is t

Re: [Virtuoso-users] Storing uris

ays... > normally (always) as URIs - as for the method it depends on your context, how are you getting info in to virtuoso? Many Regards Nathan

Re: [Virtuoso-users] DBpedia strange SPARQL anomaly

ted the same queries out on my own local 6.1 version of virtuoso with dbpedia in it and the queries ran fine / as expected :) [so possibly only affecting cluster?] Many Regards, Nathan

Re: [Virtuoso-users] Undefined Procedure with GIS/Geospatial on Virtuoso 6.1 OSS edition...

Kingsley Idehen wrote: > Nathan wrote: >> >> AFAIK geospatial is only in the commercial edition. Which is a shame :( >> > Nathan, > > Shame? hopefully no crossed wires from my scots dialect :) not as in "shameful", rather meaning "it would be gre

Re: [Virtuoso-users] Undefined Procedure with GIS/Geospatial on Virtuoso 6.1 OSS edition...

rver]SR185: > Undefined procedure db.DBA.st_point. > at line 16 of Top-Level: > select st_point (0, 52) > SQL> > > Is there some installation step that I'm missing in order to enable support > for this? > > Thanks, > Jess AFAIK geospatial is only in the commercial edition. Which is a shame :( regards! nathan

Re: [Virtuoso-users] Full text index there... but not there

following fixed it for me: DB.DBA.RDF_OBJ_FT_RULE_ADD (null, null, 'All'); vt_inc_index_db_dba_rdf_obj (); Many Regards, Nathan

Re: [Virtuoso-users] How to increase Max Memory for transitivity?

Sebastian Hellmann wrote: > Hello, > I get the the following error for this OWL Concept: > Sentence and hasToken some VVPP and hasToken some (APPR and nextToken > some VVPP)) > nextToken is transitive. > > *** Error 42000: [Virtuoso Driver][Virtuoso Server]TN...: Exceeded > 100.000.000 bytes in

Re: [Virtuoso-users] SPARQL IN() performance issues w/ 6.1

?p ?o WHERE { ?s foaf:page ?page . FILTER( ?s in(<http://dbpedia.org/resource/BBC>,<http://dbpedia.org/resource/Quantum_tunnelling>) ) . ?s ?p ?o . FILTER( isURI(?o) ) FILTER( ?o in(<http://dbpedia.org/resource/United_Kingdom>,<http://dbpedia.org/resource/Category:Physics>

Re: [Virtuoso-users] SPARQL IN() performance issues w/ 6.1

elect distinct ?s ?p ?o WHERE { ?s foaf:page ?page . FILTER( ?s in (<http://dbpedia.org/resource/BBC>,<http://dbpedia.org/resource/Quantum_tunnelling>) ) . ?s ?p ?o . FILTER( isURI(?o) ) FILTER( ?o in( <http://dbpedia.org/resource/United_Kingdom>,<http://dbpedia.org/resource/Cat

Re: [Virtuoso-users] SPARQL IN() performance issues w/ 6.1

;debug=on&timeout= Many Regards, Nathan Ivan Mikhailov wrote: > Hello Nathan, > > I've checked the compilation of the query and it seems the same for old > and new versions, so I have no clue. I can't say anything about the > speed of dbpedia.org endpoint, but it runs Virt

Re: [Virtuoso-users] SPARQL IN() performance issues w/ 6.1

Nathan wrote: > Nathan wrote: >> Hi, >> >> I'm pretty sure that the performance of in() seems to have downgraded >> somewhat with the new 6.1.0.3126 release of virtuoso; I'm struggling to >> run even very simple queries such as the following without

Re: [Virtuoso-users] SPARQL IN() performance issues w/ 6.1

Nathan wrote: > Hi, > > I'm pretty sure that the performance of in() seems to have downgraded > somewhat with the new 6.1.0.3126 release of virtuoso; I'm struggling to > run even very simple queries such as the following without them timing > out, on both my own 6.

[Virtuoso-users] SPARQL IN() performance issues w/ 6.1

bio2rdf.org sparql endpoint and performance is nice and fast as expected. Regardless even if the above versioning detail is incorrect, the in() performance definitely appears to be an issue on 6.1.1.0.3126 Many Regards, Nathan

Re: [Virtuoso-users] Bug in SPARQL XML results

fyi just done some quick checks and: Alexander De Leon wrote: > Hi, > This is possible a bug in Version: 06.00.3123 > > My endpoint is http://bio2rdf.semanticscience.org:8002/sparql > > If you run the following query: > > select distinct * where { ?p ?o } >

[Virtuoso-users] IRI_RANK

Quick FYI / gotcha, In order to use the IRI_RANK feature of virtuoso eg: ORDER BY desc((?s)) you need to have the Facet (fct) vad package installed as the procedure is part of this vad. regards!

Re: [Virtuoso-users] faster way to do count(*)

use the stored procedure as the V6 codegen > will now generate exact same execution path as the stored procedure did. > noted; my mistake I was running the bulk loader over dbpedia & a checkpoint was being created at the same time; kind of skewed the normal timing - do disregard! Many Regards, Nathan

Re: [Virtuoso-users] [Dbpedia-discussion] DBpedia on local Virtuoso server

th no problems! Most pleased :) Nathan Hugh Williams wrote: > Hi Piero, > > Good to hear of your success using the Virtuoso RDF bulk loader scripts for > loading the DBpedia datasets. > > Their is a know issue with the Conductor RDF -> Graphs tab failing to > displa

[Virtuoso-users] faster way to do count(*)

Hi All, is there a faster way to do: SELECT count(*) where { ?s ?p ?o } (ie count all triples in a graph) - quite sure there was a procedure for this but I've totally forgotten it! Regards, Nathan

Re: [Virtuoso-users] Virtuoso 6.1

Alexander, Here's a direct link that works for me: http://downloads.sourceforge.net/project/virtuoso/virtuoso/6.1.0/virtuoso-opensource-6.1.0.tar.gz?use_mirror=ignum also I've mirrored that 6.1 on my own domain if you still have no luck: http://webr3.org/virtuoso/virtuoso-opensource-6.1.0.tar.g

Re: [Virtuoso-users] Get all paths between two URIs with transitivity.

RE { ?x rdf:type <http://bio2rdf.org/ns/obo#term> . ?x ?predicate ?y . filter( isURI(?y) ) . ?y rdf:type <http://bio2rdf.org/ns/obo#term> } group by ?x order by desc(?c) limit 100 good for testing t_in start points :) do hope that helps, regards, Nathan Peter Ansell wrote: > H

Re: [Virtuoso-users] Get all paths between two URIs with transitivity.

http://www.openlinksw.com/weblog/oerling/?id=1433 some tutorials demoing transitivity: http://virtuoso.openlinksw.com/presentations/SPARQL_Tutorials/SPARQL_Tutorials_Part_3/SPARQL_Tutorials_Part_3.html# regards! Nathan wrote: > give this one a go :) > > SELECT ?x ?predicate ?y ?via ?di

Re: [Virtuoso-users] Get all paths between two URIs with transitivity.

Nathan wrote: > Hi, > > Please see: http://bit.ly/9Gli76 > > it always seems to show the T_SHORTEST_ONLY (shortest path) between two > nodes; any way to see all paths? > > SELECT ?x ?y ?via ?dist WHERE > { > { SELECT * WHERE { ?x skos:broader ?y } } > OPTION

[Virtuoso-users] Get all paths between two URIs with transitivity.

paths will do the trick and I can UNION up some results and filter to get what I want. Many Regards, Nathan

Re: [Virtuoso-users] dif:contains relevance

ORDER BY ?relevanceScore regards, Nathan

[Virtuoso-users] SPARQL option(score ?score) fault with > 1 OPTIONAL {}'s

or more OPTIONAL { } sections to the query, works fine with one. Many Regards, Nathan

Re: [Virtuoso-users] SPARQL option(score ?score) fault with > 1 OPTIONAL {}'s

Nathan wrote: > Hi Guys, > > Quick bug report: > 37000 Error SP031: SPARQL compiler: Internal error: > sparp_find_triple_of_var_or_retval(): triple not found for strong match > > SPARQL query: > define sql:signal-void-variables 1 define input:default-graph-uri >

Re: [Virtuoso-users] Scoring of free text matches in SPARQL

Nathan wrote: > Hi, > > Just looking for a way to score free text matches in SPARQL queries? > tried hunting down the documentation but can't find it (Even though I > can see mention of it in the Openlink Proposed SPARQL Extensions > document on W3C. > > Any pointers

[Virtuoso-users] Scoring of free text matches in SPARQL

Hi, Just looking for a way to score free text matches in SPARQL queries? tried hunting down the documentation but can't find it (Even though I can see mention of it in the Openlink Proposed SPARQL Extensions document on W3C. Any pointers? Many Regards, Nathan

Re: [Virtuoso-users] content:encoded

Thanks Ivan :) Any chance of an updated 6 as currently I'm getting the following: http://bit.ly/dueNeF my current build is Version 6.0.1-pre1.3124-pthreads regards & cheers, Nathan Ivan Mikhailov wrote: > Hello Nathan, > > That's the current status of version 5 tree:

Re: [Virtuoso-users] content:encoded

Just a quick chase up from myself as well with regards the following, particularly finding that the lack of serialization support in sparql results is limiting things a bit (can't expose a public sparql endpoint): any word / update / eta? Regards! Nathan wrote: > Hi Ivan, >

Re: [Virtuoso-users] Feature Request: new SPARQL pragma. define lang "en-US, en, de, fr, none, *"

ort the IN syntax which allows you to do the following filter: FILTER ( lang(?label) IN( "en","de" ) ) thus solving that one already. ps: somebody would obviously have to check that my understanding of rfc4647 is correct! [1] http://www.w3.org/TR/rdf-sparql-query/#func-langMatches [2] http://www.ietf.org/rfc/rfc4647.txt [section 2.3] [3] http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.4 Regards, Nathan

Re: [Virtuoso-users] Randomness in a SPARQL results

Marc-Alexandre Nolin wrote: > Hello, > > When I do the following query: > > select distinct > ?s > where > { > ?s rdf:type . > } > limit 100 > > Lets say I have 2 objects of type protein in the triplestore. I > will receive a results containing 100 rows of 100 di

[Virtuoso-users] Virtuoso & OWL 2

tes that a property must have a value of xsd:integer with a DatatypeRestriction xsd:minInclusive 18 - then what options are available via virtuoso to validate a triple on the way in to ensure the restrictions are met? many regards, nathan

Re: [Virtuoso-users] Newbie questions

Eddy Vanderlinden wrote: > Hello, > > Sorry for my 2 stupid questions which will have a sound and simple reply > but I no-where found any answer in the documentation. > > 1. A simple SPARQL select query: > I've been running similar to the next query, in hundreds of variants > (with parameters) bu

Re: [Virtuoso-users] How to replace a resource URI

Sebastian Trueg wrote: > Tim Haynes wrote: >> Sebastian Trueg wrote: >> >>> Is there a query that would replace one URI with another one in all >>> graphs? In other words: I need to "rename" one resource and make sure >>> that all statements in all graphs are updated accordingly. >>> Currently I

Re: [Virtuoso-users] SPARQL Result Problem - Virtuoso 06.00.3123

Bernhard Haslhofer wrote: > Hi, > > for research purposes I have imported DBpedia dumps into a local Virtuoso > 06.00.3123 instance using the following command: > > ttlp_mt (file_to_string_output ('$f'), '', '$g', 255); > > I am using the 255 flag cause I need all triples in the store, also th

[Virtuoso-users] Sparql INSERT / DELETE errors {SOS}

; any quick ways to get this working without rebuilding; I've onyl got a few hours left before live and need to get some triples saving and deleting via sparql. maybe i can drop and recreate the procedures if you have the code for them?? regards, nathan

[Virtuoso-users] random in sparql

hi all, Is there any way to achieve 'ORDER BY RANDOM() LIMIT 1' in a sparql query using virtuoso? regards, nathan

Re: [Virtuoso-users] content:encoded

22-rdf-syntax-ns#XMLLiteral"; note: all xml stripped but XMLLiteral correct DESCRIBE w/ application/rdf+xml note: perfect! As always I'm using the 6.0.1 snapshot; to replicate any of this and test for yourself the RDF in option 3 is probably ideal to replicate. And to repl

[Virtuoso-users] content:encoded

] perfectly, yet returns http://bit.ly/5zp6aQ (without cdata); so following the above assumptions isn't it invalid considering the element has a type of content:encoded(?) Apologies in advance, it's nothing urgent and I can easily work around it on the client-side. Many Regards, Nathan

Re: [Virtuoso-users] virtuoso / isql / ubuntu [mini howto]

Tim Haynes wrote: > Nathan wrote: >> ahh well deduced, and as you say all works (virtuoso isql is much better)! >> >> # /usr/local/virtuoso-opensource/bin/isql localhost: dba dba >> Connected to OpenLink Virtuoso >> Driver: 06.00.3124 OpenLink Virtuoso ODBC D

Re: [Virtuoso-users] virtuoso / isql / ubuntu [mini howto]

ahh well deduced, and as you say all works (virtuoso isql is much better)! # /usr/local/virtuoso-opensource/bin/isql localhost: dba dba Connected to OpenLink Virtuoso Driver: 06.00.3124 OpenLink Virtuoso ODBC Driver consider it symlink'd; thanks hugh :) Hugh Williams wrote: > H

Re: [Virtuoso-users] virtuoso / isql / ubuntu [mini howto]

Olivier Berger wrote: > Le samedi 28 novembre 2009 à 15:50 +0000, Nathan a écrit : >> For anybody who can't connect to virtuoso via isql on ubuntu (ie getting >> the following error) >> >> # isql localhost: dba pass >> [ISQL]ERROR: Could not SQLConnect

Re: [Virtuoso-users] virtuoso / isql / ubuntu [mini howto]

on ubuntu; thus you need to set up a DSN in order to connect / progress through tutorials / documentation etc :) Many Regards Nathan Hugh Williams wrote: > Hi Nathan, > > Hmmm, that is confusing to me as isql should not have an iODBC dependancy, as > is the case on my

Re: [Virtuoso-users] virtuoso / isql / ubuntu [mini howto]

s an apt-get regards :) Hugh Williams wrote: > Hi Nathan, > > Hmmm, that is confusing to me as isql should not have an iODBC dependancy, as > is the case on my Mac OS X and Debian Linux boxes: > > $ ldd isql > linux-gate.so.1 => (0xb7eef000) > libssl.s

[Virtuoso-users] virtuoso / isql / ubuntu [mini howto]

For anybody who can't connect to virtuoso via isql on ubuntu (ie getting the following error) # isql localhost: dba pass [ISQL]ERROR: Could not SQLConnect here's how to sort it.. install iodbc: # apt-get install iodbc create a dsn connection: # nano /etc/odbc.ini enter the following (wh

Re: [Virtuoso-users] sparql bug?

it gives the correct results :-) thanks still left wondering why the following works: select ?s ?p ?o WHERE { ?s ?p ?o . FILTER( ?o = "dba" ) } but you unblocked me - so a big thanks to you, cheers peter. many regards, nathan Peter Ansell wrote: > What does it say for this query

[Virtuoso-users] sparql bug?

same query works fine when you swap the literal for a uri select ?g ?s ?p ?o WHERE { GRAPH ?g { ?s ?p ?o . FILTER( ?o = <http://webr3.org:8890/dataspace/person/dba#this> ) } } a bug? regards! Nathan

[Virtuoso-users] Deleting Quads

Hi Again (getting like a second home here).. Simply wondering if the use of the sioc.DBA.delete_quad_* methods is recommended for fast programmatic deletion of triples from graphs in the quad store? Regards! Nathan

[Virtuoso-users] Web Service response encoding

coded in a different manner, plain xml, json or such like. (ideally without changing the procedures themselves) Many regards! Nathan

Re: [Virtuoso-users] [pedantic-web] Dbpedia's NTriples SPARQL output is broken

org/resource/Mount_Kilimanjaro> ?p ?o } UNION {<http://dbpedia.org/resource/Social_vulnerability ?p ?o } } } GROUP BY ?p ?o ORDER BY DESC( ?c ) regards, Nathan

[Virtuoso-users] Bugs, Omissions etc.

or input on ODS.ODS_API.user.update( user_info any ) checked the procedure but my virtuoso/pl isn't up to par yet and don't know what's avail + noticed a --FIX ME in there #5 blocker can't view / use / see blog for new users: see: http://webr3.org:8890/weblog/nathan/ tried

[Virtuoso-users] /sparql param documentation

I take it that named-graph-uri will override what's in the query regardless (unless set to null) as the docs indicate? regards, nathan

Re: [Virtuoso-users] ods api password_hash

Cheers Aldo, That's the one password_hash = sha1( username + pass ); Many Thanks, Nathan Aldo Bucchi wrote: > Nathan, > > try > sha1( username + pass ) > > Regards, > A > > On Sat, Nov 21, 2009 at 7:46 PM, Nathan wrote: >> Hi all, >> >

[Virtuoso-users] ods api password_hash

Hi all, just moving from using OAuth to session based authentication for some of the rest api's & wondering what encryption is used for password_hash? I've tried everything from md5 to tiger192 http://localhost:8890/ods/api/user.authenticate?user_name=someuser&password_hash=??? regards, nathan

Re: [Virtuoso-users] List graphs in V5 and V6

Sebastian Hellmann wrote: > Hello, > > DB.DBA.SPARQL_SELECT_KNOWN_GRAPHS() > needs almost 100 seconds the first time and 20 seconds for consecutive > queries. > > select GRAPH_IRI from DB.DBA.SPARQL_SELECT_KNOWN_GRAPHS_T ; > needs 20-50 seconds also strange.. wonder if it's another issue, runs

Re: [Virtuoso-users] List graphs in V5 and V6

Sebastian Hellmann wrote: > Hello, > what is the fastest way to query for a list of graphs in the store > for the V5 and V6 series. I do not succeed to write a query that is > faster than 10 seconds. > > I'm testing it on http://db0.aksw.org:8890/sparql , the latest VOS 6 , > which has DBpedia l

[Virtuoso-users] ODS vad daily builds

); regards! nathan

[Virtuoso-users] ODS Briefcase sharing via API?

WebDAV without having to make the whole table readable to the application" but can't find it? regards in advance, nathan

Re: [Virtuoso-users] Segmentation faults when rdf operations are involved + large transformations

two should this issue be resolved. (times limited on current project) Many Regards, Nathan