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',
 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



On Aug 28, 2013, at 11:59 AM, Hugh Williams <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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> Universal Data Access, Integration, and Management Technology Providers
> 
> On 28 Aug 2013, at 15:19, Timothy Lebo <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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