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Scripting Relational Database Engine Using Transducer [PDF]

open access: yesarXiv, 2018
We allow database user to script a parallel relational database engine with a procedural language. Procedural language code is executed as a user defined relational query operator called transducer. Transducer is tightly integrated with relation engine, including query optimizer, query executor and can be executed in parallel like other query operators.
arxiv  

A system for semantic query optimization [PDF]

open access: bronze, 1987
Sreekumar T. Shenoy   +1 more
openalex   +1 more source

ROSIE: Runtime Optimization of SPARQL Queries Using Incremental Evaluation [PDF]

open access: yesarXiv, 2016
Relational databases are wildly adopted in RDF (Resource Description Framework) data management. For efficient SPARQL query evaluation, the legacy query optimizer needs reconsiderations. One vital problem is how to tackle the suboptimal query plan caused by error-prone cardinality estimation.
arxiv  

Logic-based approach to semantic query optimization [PDF]

open access: bronze, 1990
Upen S. Chakravarthy   +2 more
openalex   +1 more source

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