发明授权
US06356890B1 Merging materialized view pairs for database workload materialized view selection
有权
为数据库工作负载物化视图选择合并物化视图对
- 专利标题: Merging materialized view pairs for database workload materialized view selection
- 专利标题(中): 为数据库工作负载物化视图选择合并物化视图对
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申请号: US09629353申请日: 2000-08-01
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公开(公告)号: US06356890B1公开(公告)日: 2002-03-12
- 发明人: Sanjay Agrawal , Surajit Chaudhuri , Vivek R. Narasayya
- 申请人: Sanjay Agrawal , Surajit Chaudhuri , Vivek R. Narasayya
- 主分类号: G06F1730
- IPC分类号: G06F1730
摘要:
An index and materialized view selection wizard produces a fast and reasonable recommendation for a configuration of indexes, materialized views, and indexes on materialized views which are beneficial given a specified workload for a given database and database server. Candidate materialized views and indexes are obtained, and a joint enumeration of the combined materialized views and indexes is performed to obtain a recommended configuration. The configuration includes indexes, materialized views and indexes on materialized views. Candidate materialized views are obtained by first determining subsets of tables are referenced in queries in the workload and then finding interesting table subsets. Next, interesting subsets are considered on a per query basis to determine which are syntactically relevant for a query. Materialized views which are likely to be used for the workload are then generated along with a set of merged materialized views. Clustered indexes and non-clustered indexes on materialized views are then generated. The indexes, materialized views and indexes on materialized views are then enumerated together to form the recommended configuration.
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