Research of the landuse vector data storage and spatial index based on the main memory database(基于内存数据库的矢量数据存储与空间索引研究)
基于传统磁盘数据库的管理系统已能较好地管理土地利用矢量数据,但较大的内外存数据交换开销对系统实时性有一定影响.没有I/O开销的内存数据库将是解决该现状的良好方法.基于内存数据库Redis设计土地利用矢量数据库存储组织,提出点、线、面不同的空间要素空间特征数据的存储结构.采用缓存敏感优化并基于磁盘数据库中的空间索引R+树,提出了一种适合Redis的空间索引.对比实验发现,在数据查询和统计分析速度等方面较基于Oracle 10 g的管理系统有较大提升....
Main Authors: | QIJianghui(戚将辉), ZHANGFeng(张丰), DUZhenhong(杜震洪), LIURenyi(刘仁义) |
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Format: | Article |
Language: | zho |
Published: |
Zhejiang University Press
2015-05-01
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Series: | Zhejiang Daxue xuebao. Lixue ban |
Subjects: | |
Online Access: | https://doi.org/10.3785/j.issn.1008-9497.2015.03.022 |
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