Chase (algorithm): Difference between revisions

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The chase process is confluent.
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The Chase has its origins in two seminal papers, one by [[David Maier]], [[Alberto O. Mendelzon]], and [[Yehoshua Sagiv]]<ref>
[[David Maier]], [[Alberto O. Mendelzon]], and [[Yehoshua Sagiv]]: "Testing Implications of Data Dependencies". ACM Trans. Datab. Syst. 4(4):455-469, 1979.</ref> and the other by
[[Alfred V. Aho]], [[Catriel Beeri]], and [[Jeffrey D. Ullman]].<ref>[[Alfred V. Aho]], [[Catriel Beeri]], and [[Jeffrey D. Ullman]]: "The Theory of Joins in Relational Databases", ACM Trans. Datab. Syst. 4(3):297-314, 1979.</ref>.
 
'''Chase test''' is for testing whether the [[projection (relational algebra)|projection]] of a relation onto any decomposition can be recovered by rejoining.