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XArch: The XML Archiver
XArch is an archive management system that allows to create, populate and query archives of multiple database versions.
XArch is based on a nested merge approach that efficiently stores multiple database versions in a compact archive. The system allows to create new archives, to merge new versions of data into existing archives and execute both snapshot and temporal queries using a declarative query language.
XArch is an output from DCC-funded research at Informatics at the University of Edinburgh. Any questions or comments regarding XArch, please contact Heiko Müller.