The language of plain SO-tgds: Composition, inversion and structural properties
J. Comput. Syst. Sci., pp. 763-784, 2013.
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The problems of composing and inverting schema mappings specified by source-to-target tuple-generating dependencies (st-tgds) have attracted a lot of attention, as they are of fundamental importance for the development of Bernstein@?s metadata management framework. In the case of the composition operator, a natural semantics has been prop...More
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