[Virtuoso-users] Writing Custom SPARQL Extension Functions?

Does Virtuoso provide some supported way to write one's own custom SPARQL extension functions (http://www.w3.org/TR/rdf-sparql-query/#extensionFunctions)? Thanks, Jamey

Re: [Virtuoso-users] Configuration parameters and out of memory error

The problem disappeared after I upgraded to the latest version. Thanks for the help. On Thu, Jan 6, 2011 at 10:44 AM, Abhi wrote: > Virtuoso log snippet: > > 23:28:12 PL LOG: Loader started > 23:33:08 Memory low! Using memory reserve to terminate current activities > properly > 23:33:08 Current

[Virtuoso-users] transaction support in isql for multiple sparql opeations?

Is it possible to use isql with virtuoso open source edition to run multiple sparql commands in a transaction such that there is isolation from other clients? I'd like to drop a graph and load new data into it without other clients seeing an inconsistent state, but my attempts at doing this with

Re: [Virtuoso-users] Configuration parameters and out of memory error

Virtuoso log snippet: 23:28:12 PL LOG: Loader started 23:33:08 Memory low! Using memory reserve to terminate current activities properly 23:33:08 Current location of the program break 146526208 23:33:08 Current location of the program break 146526208 23:33:08 GPF: Dkernel.c:5286 Out of memory The