| Aspects of Rewriting Queries on Semistructured Data (2007) | |||||||||||||||
Abstract | |||||||||||||||
| Rewriting queries using materialized views has been widely studied in recent years, although most of the work has been done based on relational models. We are interested in determining what aspects need to be considered when dealing with semistructured data. For concreteness and motivation, our underlying data model is LDAP, the well-known lightweight directory access protocol of the internet. In this extended abstract we introduce L 3 DAP, a logical language for expressing LDAP-like queries and study query rewriting with an emphasis on undefined attributes and constraints inherent to the LDAP semistructured data model. 1 | |||||||||||||||
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