Review on Efficient Query Processing for Set Predicates of Dynamically Formed Group

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Provided by: Creative Commons
Topic: Data Management
Format: PDF
In data warehousing and OLAP applications, scalar-level predicates in SQL become highly inadequate which needs to support set-level comparison semantics, i.e., comparing a group of tuples with several values. The authors present here a comprehensive review of the state-of-the-art processing a group of tuples with multiple values and to optimize the queries. Currently, complex SQL queries composed by scalar-level operations are difficult to write as well as challenging for database engine to optimize, which results in costly evaluation.
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