The Relational XQuery Puzzle: A Look-Back on the Pieces Found So Far

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Provided by: ETH Zurich
Topic: Big Data
Format: PDF
Given the tremendous versatility of relational database implementations toward a wide range of data-base problems, it seems only natural to consider them as back-ends for XML data processing. Yet, the assumptions behind the language XQuery are considerably different to those in traditional RDBMSs. The underlying data model is a tree, data and results carry an intrinsic order, queries are described using explicit iteration and, after all, problems are everything else but regular. Solving the relational XQuery puzzle, therefore, has challenged a number of research groups over the past years.
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