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.
基金National Natural Science Foundation of China(61367004,11604058)Guangxi Key Laboratory for Relativistic Astrophysics-Guangxi Natural Science Creative Team funding(2013GXNSFFA019001)Guangxi Natural Science Foundation(2016GXNSFBA380244)
