Sebastian Schaffert created MARMOTTA-80:
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Summary: Improve KiWi SPARQL evaluation for certain queries
Key: MARMOTTA-80
URL: https://issues.apache.org/jira/browse/MARMOTTA-80
Project: Marmotta
Issue Type: Task
Components: Triple Store
Reporter: Sebastian Schaffert
Assignee: Sebastian Schaffert
Fix For: 3.1-incubating
We are currently relying completely on the in-memory evaluation of SPARQL
queries, which is inefficient in certain cases, e.g. complex joins or simple
queries. We should therefore implement an evaluation strategy that allows more
efficiently evaluating certain parts of a SPARQL query, e.g.:
- joins between triple patterns
- certain kinds of filter joins
- simple aggregation queries
The rest should be based on the normal evaluation strategy offered by Sesame.
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