Replace the integrated SPARQL engine
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Key: CLEREZZA-194
URL: https://issues.apache.org/jira/browse/CLEREZZA-194
Project: Clerezza
Issue Type: Improvement
Reporter: Oliver Strässer
Priority: Critical
The Scalability of the integrated SPARQL engine isn't very good. Some test
with big graphs demonstrate this problem.
A Query over a big Graph (120 MB) needs more than 45 seconds with SPARQL. The
same "query" build with graph.filter(triple) calls, needs only 1-2 msec - quite
faster.
research with Manuel Innerhofer shows, that the problem is the hasnext() method
of the SPARQL resultset.
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