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https://issues.apache.org/jira/browse/RYA-30?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15095267#comment-15095267
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Puja Valiyil commented on RYA-30:
----------------------------------
I'm not sure I follow the bug -- was the behavior different when you inserted
the triple by itself versus inserting it with multiple statements?
Object types are persisted along with the literal value, so I don't think the
issue has to do with overwriting (though I might be wrong). This may be an
issue with Sesame.
> Literal type information lost when inserting a matching literal with a
> different type
> -------------------------------------------------------------------------------------
>
> Key: RYA-30
> URL: https://issues.apache.org/jira/browse/RYA-30
> Project: Rya
> Issue Type: Bug
> Reporter: Darren Griffith
>
> I have 2 different SPARQL statements.
>
> The first inserts a triple where the object is the integer literal "2" and
> a triple where the object is the string literal "2". I believe these should
> be considered 2 different literals. However, when I query for the triple
> with the integer literal "2", it returns a triple with the string literal "2"
> (see EXAMPLE 1).
>
> The second inserts only a triple where the object is the integer literal
> "2", which is the same triple inserted by the first statement. When I query
> for this triple, it returns the triple with the integer literal "2" (see
> EXAMPLE 2).
>
> I believe that my queries should return the same result in both cases. It
> seems the Rya isn't including the type information in the symbol table and
> overwriting what should be different literals.
>
> — EXAMPLE 1 —
>
> INSERT DATA {
>
> <http://modusoperandi.com/Archivist/detection#jakarta_001.tif_jakarta_001_000.png>
>
> <http://modusoperandi.com/Archivist/detection#confidence>"2"^^<http://www.w3.org/2001/XMLSchema#integer>
> .
> <http://modusoperandi.com/Archivist/provenance#6327df6d-79b8-48cd-a855-c7b4b77e0942>
> <http://modusoperandi.com/Archivist/provenance#to> "2".
> }
>
>
> SELECT *
> WHERE {
> ?s <http://modusoperandi.com/Archivist/detection#confidence> ?o .
> }
>
>
> <sparql xmlns="http://www.w3.org/2005/sparql-results#";>
> <head>
> <variable name="s"/>
> <variable name="o"/>
> </head>
> <results>
> <result>
> <binding name="s">
> <uri>
> http://modusoperandi.com/Archivist/detection#jakarta_001.tif_jakarta_001_000.png
> </uri>
> </binding>
> <binding name="o">
> <literal>2</literal>
> </binding>
> </result>
> </results>
> </sparql>
>
>
>
> — EXAMPLE 2 —
>
> INSERT DATA {
>
> <http://modusoperandi.com/Archivist/detection#jakarta_001.tif_jakarta_001_000.png>
>
> <http://modusoperandi.com/Archivist/detection#confidence>"2"^^<http://www.w3.org/2001/XMLSchema#integer>
> .
> }
>
> SELECT *
> WHERE {
> ?s <http://modusoperandi.com/Archivist/detection#confidence> ?o .
> }
>
> <sparql xmlns="http://www.w3.org/2005/sparql-results#";>
> <head>
> <variable name="s"/>
> <variable name="o"/>
> </head>
> <results>
> <result>
> <binding name="s">
> <uri>
> http://modusoperandi.com/Archivist/detection#jakarta_001.tif_jakarta_001_000.png
> </uri>
> </binding>
> <binding name="o">
> <literal datatype="http://www.w3.org/2001/XMLSchema#integer";>2</literal>
> </binding>
> </result>
> </results>
> </sparql>
>
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