On 8/28/13 2:28 PM, Timothy Lebo wrote:
Thanks, Hugh.

The error:
{{{
load function: DB.DBA.TTLP_MT(file_to_string_output('/SOME/PATH/TO/b.ttl'),'','http://www.SOME.com/graphs/test' <http://www.SOME.com/graphs/test%27>, 255, 2, 2);
}}

The input:
$ cat b.ttl
{{{
@prefix nfo: <http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#> .
[] nfo:fileName "some.ttl" .
@prefix nfo: <http://www.semanticdesktop.org/ontologies/nfo/#> .
[] nfo:fileName "another.ttl" .
}}}


The version:
$ virtuoso-t -?
Virtuoso Open Source Edition (Row Store) (multi threaded)
Version 6.1.8-dev.3127-pthreads as of Aug 13 2013
Compiled for Linux (x86_64-unknown-linux-gnu)
Copyright (C) 1998-2013 OpenLink Software

Best,
Tim


This is a bug i.e., regression in the Turtle parser.

Kingsley


On Aug 28, 2013, at 11:59 AM, Hugh Williams <hwilli...@openlinksw.com <mailto:hwilli...@openlinksw.com>> wrote:

Hi Tim,

Can you please confirm the version(s) for Virtuoso you are encountering this issue with (virtuoso-t -? to get full version and build date). Also, if you can provide a sample dataset we can attempt a recreation in-house ...

Best Regards
Hugh Williams
Professional Services
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On 28 Aug 2013, at 15:19, Timothy Lebo <le...@rpi.edu <mailto:le...@rpi.edu>> wrote:

Hello,

I'm receiving the following error while trying to load a turtle file into Virtuoso with isql:

*** Error 37000: [Virtuoso Driver][Virtuoso Server]SP029: TURTLE RDF loader, line 3226: Namespace prefix is re-used for a different namespace IRI

Is this a new requirement by Virtuoso? I've been loading Turtle files with redefined prefixes for years, and this is appearing on my newer installations.

To work around this, I'll either need to reduce human readability of my Turtle, or dumb down anything I give Virtuoso into N-TRIPLEs first. Both approaches seem like less desirable states, and require extra effort and levels of processing on my part.

Why can't Virtuoso accept redefined prefixes in Turtle?

Thanks,
Tim Lebo
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