Maxime Poitevineau-Millin created MARMOTTA-492:
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Summary: Issue With a SPARQL Query
Key: MARMOTTA-492
URL: https://issues.apache.org/jira/browse/MARMOTTA-492
Project: Marmotta
Issue Type: Bug
Components: Sesame Tools
Affects Versions: 3.2.0
Reporter: Maxime Poitevineau-Millin
We are currently implementing marmotta in our system but!
When trying this query :
SELECT * FROM <sesame:nil> {
?kw rdf:type Keyword .
?kw2 rdf:type Keyword .
?kw2 ?rel ?kw .
}
on a database containing 60 000 keywords, marmotta is creating 60 000 * 60 000
queries similar to this one :
SELECT
id,subject,predicate,object,context,deleted,inferred,creator,createdAt,deletedAt
FROM triples WHERE deleted = false AND subject = '458172920399523841' AND
object = '458172732532453376' AND context = '458172711103754240'
Which obviously takes a long time.
This query takes 2 sec on Virtuoso or Owlim, is there any configuration issue
or something we should change?
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