PostGIS 2.0.0 Released 已经有段时间了，新版本 postgis 包括以下新特性，对 postgis 感兴趣的朋友可以下载测试下

The development process for 2.0 has been very long, but has resulted in a release with a number of exciting new features.

PostGIS 2.0.0 新特性

• Raster data and raster/vector analysis in the database
• Topological models to handle objects with shared boundaries
• PostgreSQL typmod integration, for an automagical geometry_columns table
• 3D and 4D indexing
• Index-based high performance nearest-neighbour searching
• Many more vector functions including
• ST_Split
• ST_Node
• ST_MakeValid
• ST_OffsetCurve
• ST_ConcaveHull
• ST_AsX3D
• ST_GeomFromGeoJSON
• ST_3DDistance
• Integration with the PostgreSQL 9.1 extension system
• Improved commandline shapefile loader/dumper
• Multi-file import support in the shapefile GUI
• Multi-table export support in the shapefile GUI
• A geo-coder optimized for free US Census TIGER (2010) data

Download postgis

http://postgis.refractions.net/download/