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From "Enrico Daga (JIRA)" <j...@apache.org>
Subject [jira] [Reopened] (CLEREZZA-908) Cannot save literals of datatype rdf:XMLLiteral with the virtuoso storage
Date Fri, 11 Apr 2014 17:30:17 GMT

     [ https://issues.apache.org/jira/browse/CLEREZZA-908?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Enrico Daga reopened CLEREZZA-908:
----------------------------------


But we want to leave this OPEN

> Cannot save literals of datatype rdf:XMLLiteral with the virtuoso storage
> -------------------------------------------------------------------------
>
>                 Key: CLEREZZA-908
>                 URL: https://issues.apache.org/jira/browse/CLEREZZA-908
>             Project: Clerezza
>          Issue Type: Bug
>            Reporter: Enrico Daga
>            Assignee: Enrico Daga
>
> This problem raised some time ago for the first time but it needs some time to be clarified.
Discussions has been done in the virtuoso mailing list [1].
> Specifically, inserting a triple with a value of type rdf:XMLLiteral caused a string
"0" to be inserted. At that time a partial solution was to serialize the whole triple as TTL
and use a stored procedure db.dba.ttl(...) to save the triple. This worked, but caused the
triple to loose the datatype (see [2]).
> This is also what is currently implemented.
> Anyway, this solution is bad for other reasons, especially:
> - performance is too bad (serializes any triple...)
> - you still don't have the correct datatype (there are two tests with "Ignore" annotation
in VirtuosoMGraphTest that witness this)
> [1] http://sourceforge.net/p/virtuoso/mailman/message/31987368/
> [2] http://sourceforge.net/p/virtuoso/mailman/message/31992357/



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