Titlebook: Research Issues in Structured and Semistructured Database Programming; 7th International Wo Richard Connor,Alberto Mendelzon Conference pro

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Optimization of Nested SQL Queries by Tableau Equivalencecation and tableau minimization. It unifies and generalizes previously proposed (seemingly unrelated) algorithms, and can incorporate general database dependencies given in the database schema..We apply our method to query blocks with ., . aggregation op- erators. We obtain an algorithm which does n

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