基于多层索引的空间数据版本管理系统

Spatial Data Version Management System Based on Multi-Layer Index

为提升空间数据存储和查询效率,支持增量式版本管理,设计了使用多级索引和缓冲,支持表和记录两级版本的管理系统。对不同的渲染和查询要求提供对应级别的索引,并建立内存缓冲策略;对空间数据编辑操作进行合并及冲突处理,提供记录级版本增量式备份和恢复;实现了空间数据表和记录级版本的前进、回溯和融合。结合实例,验证了索引缓冲和版本管理策略的效果,为空间数据高效管理提供了解决途径。

To improve the efficiency of spatial data storage and query and support incremental version management, a management system using multi-level index and buffer and supporting two-level versions of table and record is designed. Provide corresponding level indexes for different rendering and query requirements, establish memory buffer strategy;Merging and conflict handling of spatial data editing operations, and providing incremental backup and recovery of record level versions;It realizes the advance, backtracking and integration of spatial data table level and record level versions. Combined with an example, the effect of index buffer and version management strategy is verified, which provides a solution for the efficient management of spatial data.