From XML Schema to Relations: A Cost-Based Approach to XML Storage

01 January 2002

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LegoDB leverages existing XML and relational technologies: it represents the target application using XML standards and constructs the space of configurations using XML-specific operations, and it uses a traditional relational optimizer to obtain accurate cost estimates of the derived configurations. In this paper, we describe the LegoDB mapping engine and provide experimental results that demonstrate the effectiveness of this approach.