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SYSTEM AND METHOD FOR RELATIONAL DATABASE QUERY ANSWERING AND OPTIMIZATION BASED ON NATURAL ALGEBRA OF K-RELATIONS
SYSTEM AND METHOD FOR RELATIONAL DATABASE QUERY ANSWERING AND OPTIMIZATION BASED ON NATURAL ALGEBRA OF K-RELATIONS
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机译：基于K形关系自然代数的关系数据库查询应答和优化系统和方法
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摘要
This disclosure presents a system and method for representing, transforming, and answering, database queries based on formalisms for k-relations and operations on them, wherein all the operations are derived from the two basic ones: natural join and natural union, so their algebraic properties are also derived. The disclosure suggests implementations of these formalisms in the embodiments of the invention. In particular, the examples presented in this disclosure encompass the translation of the full spectrum of features and functionality of the relational database queries (SQL examples) as well as the essential functionality of the object-relational and graph database queries (Starcounter QL examples). The algebraic expressions resulting from the said translation can be further rewritten using the transformation rules, and eventually mapped to an executable form for any given embodiment.
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