Algebraic rewritings for optimizing regu
โ
Gรถsta Grahne; Alex Thomo
๐
Article
๐
2003
๐
Elsevier Science
๐
English
โ 189 KB
Rewriting queries using views is a powerful technique that has applications in query optimization, data integration, data warehousing, etc. Query rewriting in relational databases is by now rather well investigated. However, in the framework of semistructured data the problem of rewriting has receiv