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The Constraint Database Framework: Lessons Learned from CQA/CDB
Bangalore, India March 05-March 08
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/ICDE.2003.126085219th International Conference on Data ...
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Dina Goldin, University of Connecticut, USA
Ayferi Kutlu, University of Connecticut, USA
Mingjun Song, University of Connecticut, USA
Fuzheng Yang, University of Connecticut, USA
This paper reflects our experience with CQA/CDB, a prototype rational linear constraint database. First, we show that the standard semantics of constraint databases lead to an anomaly when queried in the presence of missing attributes. In CQA/CDB, this anomaly is avoided by enriching the CDB relational schema, resulting in heterogenous databases. Then, we present spatial databases as a special case of heterogenous databases and extend constraint query algebras (CQAs) with two additional spatial operators, proving that the resulting language is safe for linear constraints.
Citation:
Dina Goldin, Ayferi Kutlu, Mingjun Song, Fuzheng Yang, "The Constraint Database Framework: Lessons Learned from CQA/CDB," icde, pp.735, 19th International Conference on Data Engineering (ICDE'03), 2003
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