Inverting schema mappings: bridging the gap between theory and practice
PVLDB, pp. 1018-1029, 2009.
inverse operatorinverse mappingmappings languagemapping languagealgorithms workMore(7+)
The inversion of schema mappings has been identified as one of the fundamental operators for the development of a general framework for metadata management. In fact, during the last years three alternative notions of inversion for schema mappings have been proposed (Fagin-inverse , quasi-inverse  and maximum recovery ). However...More
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