PYI: Theory and implementation of database systems.

PYI：数据库系统的理论与实现。

• 批准号: 9157357
• 负责人: Jeffrey Naughton
• 金额: $ 31.25万
• 依托单位: University of Wisconsin-Madison
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-08-01 至 1998-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9157357&HistoricalAwards=false
• 关键词: PYI; Theory; implementation; database; systems.

The long-term goal of this project is to increase the performance and functionality of database systems, with a special emphasis on parallel database systems. Three specific topics currently being addressed are clustering/declustering of data on secondary storage, probabilistic methods in query cost estimation and query evaluation, and transparent checkpointing techniques in parallel persistent programming environments. The research consists of theoretical studies to gain an understanding of the key problems involved, followed by analytic studies to compare and contrast alternative solutions to these key problems, followed by prototype implementations of the most promising solutions.

该项目的长期目标是提高数据库系统的性能和功能，特别强调并行数据库系统。目前正在讨论的三个具体主题是辅助存储上数据的集群/去集群、查询成本估计和查询评估中的概率方法以及并行持久编程环境中的透明检查点技术。这项研究包括理论研究，以了解所涉及的关键问题，然后是分析研究，以比较和比较这些关键问题的替代解决方案，最后是最有希望的解决方案的原型实施。