반도체의 가격이 점점 저렴해지고 메모리의 용량이 커짐에 따라 서버 컴퓨터 시스템의 메모리가 대용량화 되고 있다. 이에 따라 많은 양의 공간 데이터를 메모리에 상주 시킬 수 있게 되었다. 또한 LBS 와 같은 고성능을 요구하는 지리 정보를 이용하는 응용들이 나타나고 있다. 본 논문에서는 이와 같은 요구를 만족시키기 위해서 메인 메모리에 상주하는 GIS 데이터베이스 시스템을 다루고자 한다. 메인 메모리 상주 GIS 데이터베이스 시스템은 지리 정보 응용들에서 충분한 기능과 높은 성능을 제공할 것이다.
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