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PostGIS 0.8.0 Released
Refractions Research is pleased to announce the 0.8.0 release of PostGIS, the open source spatial extension to PostgreSQL. Version 0.8.0 contains support for all the functions in the OpenGIS "Simple Features for SQL" specification, making PostGIS the first open source spatial database to supply support the standard.
"We have been working towards this goal for the past two years", said Paul Ramsey, President of Refractions Research, "Complete spatial functions are a key feature set for building spatial infrastructures, and we are pleased to make this functionality available to the open source community."
"Open source spatial infrastructures are going to bring together communities of interest all over, because open source infrastructures do not have replication costs", says Ramsey. Mapserver and GeoServer, with a PostGIS backend, are a complete high performance OpenGIS data publishing and sharing infrastructure, that any organization can deploy.
Among the (many) new OpenGIS functions added are:
- Contains(), Within(), Touches(), Disjoint(),
- Overlaps(), Intersects(), Crosses(), Relate()
- Intersection(), GeomUnion(), Buffer(), Difference()
- ConvexHull(), SymmetricDifference()
Also some non SFSQL functions, inspired by the spec:
- Aggregates: GeomUnion() in-memory geometry aggregate
- Aggregates: MemGeomUnion() memory-safe slower aggregate
Version 0.8.0 also includes support for the recently released PostgreSQL version 7.4.