Nested Mappings: Schema Mapping Reloaded

  title={Nested Mappings: Schema Mapping Reloaded},
  author={Ariel Fuxman and Mauricio A. Hern{\'a}ndez and C. T. Howard Ho and Ren{\'e}e J. Miller and Paolo Papotti and Lucian Popa},
Many problems in information integration rely on specifications, called schema mappings, that model the relationships between schemas. Schema mappings for both relational and nested data are well-known. In this work, we present a new formalism for schema mapping that extends these existing formalisms in two significant ways. First, our nested mappings allow for nesting and correlation of mappings. This results in a natural programming paradigm that often yields more accurate specifications. In… CONTINUE READING
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