Re: [Virtuoso-users] Virtuoso as pass-thru HTTP Proxy

Aldo, On 17 Sep 2009, at 08:16, Aldo Bucchi wrote: Hugh, On Wed, Sep 16, 2009 at 5:37 PM, Hugh Williams hwilli...@openlinksw.com wrote: Hi Aldo, You should be able to create a URL rewrite rule to peform this pass- thru as detailed at:

Re: [Virtuoso-users] urls formed in description.vsp

Hi Ruben, What changes are you making that are not taking effect ? You should be able to drop and create changes made to any procedures changed, or worse case rebuild the server should these functions be build into the Virtuoso binary ... Best Regards Hugh Williams Professional Services

Re: [Virtuoso-users] urls formed in description.vsp

The code you suggested, the rdfdesc_http_url function of description.sql. When we change to something like this: create procedure rdfdesc_http_url (in url varchar) { .. -- host := http_request_header(http_request_header(), 'Host', null, null); host := 'data.fundacionctic.org';

[Virtuoso-users] jdbc error

Hi, I have a program to run the construct queries from API ( snippet below). For complex queries, while executed it complains with the following: Convert results are FAILED.:virtuoso.jdbc3.VirtuosoException: Bad column number : 2 not in 1n1 It is occuring at line no 4 of the following.. 1.

Re: [Virtuoso-users] Virtuoso export

On 9/17/09 18:28 , Sebastian Hellmann wrote: Yes, thank you, if this was a forum you could make the mail sticky :) I will forward it to everybody, who asked me the export question in the past. Sebastian We do have a HowTo section in the VOS wiki. Probably could add this info there... could

Re: [Virtuoso-users] make inference rule set

Hi Mirko, You can remove a graph rule from the rule set using the option remove parameter of the rdfs_rule_set function as detailed at: http://docs.openlinksw.com/virtuoso/rdfsparqlrule.html#rdfsparqlrulemake So, something like: rdfs_rule_set (name, graph, remove (1)) Best

Re: [Virtuoso-users] urls formed in description.vsp

Hi Ruben, Ok, so it a BIF (built in function) in the server binary for speed, which means the change needs to be recompiled into the binary which is possible for open source users as you have done ... Best Regards Hugh Williams Professional Services OpenLink Software Web:

[Virtuoso-users] Literal with xml:lang through jdbc problem

I tried getting RDF results of a query through JAVA. I used the jdbc example occurring in the Virtuoso documentation, but Literals with xml:lang specification return as java String. The drivers I tested: * recent virtjdbc3.jar (ftp'd just now) OpenLink Virtuoso(TM) Driver for JDBC(TM) Version

Re: [Virtuoso-users] jdbc error

Hi Dhaval, You indicate the error occurs when running complex queries can you provide an example of such queries in comparison with those that work. If you could provide a sample program we could compile in house to recreate the issue that would be even better. It might also be useful to

Re: [Virtuoso-users] DBpedia install script

Hi Alex, The duration of the load can be long depending on the speed (cpu/ memory etc) and configuration of your server ( machine and virtuoso) and number of datasets being loaded. General tips on tuning for loading RDF data is available at:

Re: [Virtuoso-users] DBpedia install script

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi Hugh, Thanks for the link to the tips on loading RDF data. Anyway, it's slightly reassuring to know that it's not taking a *ridiculously* long time, at least in comparison to others' experiences (though the computer is Intel Dual Core, with fast