Invention Grant
US07877405B2 Pruning of spatial queries using index root MBRS on partitioned indexes 有权
使用索引根MBRS对分区索引修剪空间查询

Pruning of spatial queries using index root MBRS on partitioned indexes
Abstract:
A method, system, and computer program product provides improved performance for queries on local partitioned indexes. A method of performing a database query comprises receiving a query of spatial data in a database, the database comprising at least one partitioned spatial index, obtaining metadata relating to all partitions of the spatial index using array-fetching techniques, determining, for each partition, whether the partition is relevant to the query by comparing with “footprint” (root_mbr) information stored in the metadata for the partition, and processing the query on each relevant partition.
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