Chapter Six
Query Processing
Abstract
The different components of a query processing are presented in this chapter. Just like in a traditional dabatase management system, a query is first parsed before being translated to an internal format. An optimization step is performed before execution. We also present some recent results on the processing of SPARQL update queries.
Keywords
Query processing
Parsing
Translation
Logical and physical plans
Optimization
Heuristics
Statistics
Access path
Joins
Execution
6.1. Introduction
In the previous chapter, we presented the main physical organization and indexing approaches available in open-source and commercial RDF stores. This enables us to present the query processing aspects of the systems. ...
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