Materialized views can be used to improve the performance of queries. When there are large amounts ofviews, it will take much time to sequentially search views that possibly answer queries. A level index is presented ...Materialized views can be used to improve the performance of queries. When there are large amounts ofviews, it will take much time to sequentially search views that possibly answer queries. A level index is presented topartition views into much smaller subsets and can be used to separate those candidate views fast.展开更多
文摘Materialized views can be used to improve the performance of queries. When there are large amounts ofviews, it will take much time to sequentially search views that possibly answer queries. A level index is presented topartition views into much smaller subsets and can be used to separate those candidate views fast.
