Query plan optimization - PowerPoint PPT Presentation

Overview of Query Evaluation

Overview of Query Evaluation. Chapter 12. Outline. Query Optimization Overview Algorithm for Relational Operations. Overview of Query Evaluation. DBMS keeps descriptive data in system catalogs. SQL queries are translated into an extended form of relational algebra: Query Plan Reasoning :

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Efﬁcient Similarity Search : Arbitrary Similarity Measures, Arbitrary Composition

Efﬁcient Similarity Search : Arbitrary Similarity Measures, Arbitrary Composition. Date: 2011/10/31 Source: Dustin Lange et. al (CIKM’11) Speaker:Chiang,guang-ting Advisor: Dr. Koh . Jia -ling. I ndex. Introduction Problem Definition Evaluating Query Plans Query Plan Optimization

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