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View all- Ghosh DGupta PMehrotra SYus RAltowim Y(2022)JENNERProceedings of the VLDB Endowment10.14778/3551793.355182215:11(2666-2678)Online publication date: 1-Jul-2022
The problems of query containment, equivalence, and minimization are fundamental problems in the context of query processing and optimization. In their classic work [2] published in 1977, Chandra and Merlin solved the three problems for the language of ...
In this paper, we define a new class of queries, the top-k multiple-type integrated query (simply, top-k MULTI query). It deals with multiple data types and finds the information in the order of relevance between the query and the object. Various ...
Conjunctive queries (CQs) are at the core of query languages encountered in many logic-based research fields such as AI, or database systems. The majority of existing work assumes set semantics but often in real applications the manipulation of ...
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