A method and system is provided for processing queries. Specifically, techniques are provided for handling a query that does not reference a particular materialized view, where the query requires access to values from a particular column not contained in the materialized view. A technique is also provided...http://www.google.fr/patents/US6496819?utm_source=gb-gplus-shareBrevet US6496819 - Rewriting a query in terms of a summary based on functional dependencies and join backs, and based on join derivability
Rewriting a query in terms of a summary based on functional dependencies and ...