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PostGIS has applied for Incubation and has been accepted. Find more Details on the PostGIS Incubation Status page.

Fact Sheet


PostGIS adds support for geographic objects to the PostgreSQL object-relational database. In effect, PostGIS "spatially enables" the PostgreSQL server, allowing it to be used as a backend spatial database for geographic information systems (GIS), much like ESRI's SDE or Oracle's Spatial extension. PostGIS follows the OpenGIS "Simple Features Specification for SQL" and has been certified as compliant with the "Types and Functions" profile.

PostGIS has been developed by Refractions Research as a project in open source spatial database technology. PostGIS is released under the GNU General Public License. We continue to develop PostGIS, and have added user interface tools, basic topology support, data validation, coordinate transformation, programming APIs and much more. Our list of future projects includes full topology support, raster support, networks and routing, three dimensional surfaces, curves and splines and other features. Ask us about consulting services and implementing new features.

  • Paul Ramsey : Spatial Index, 3D index, Geography (PSC Chair)
  • Sandro Santilli : Developer, GEOS Integration, Topology (PSC)
  • Regina Obe : Developer, Tiger Geocoder, Windows Build, Documentation Lead (PSC)
  • Mark Cave-Ayland : Developer, PostgreSQL integration, shp2pgsql dumper/loader and GUI (PSC)
  • Bborie Park: Developer, Raster
  • Pierre Racine: Developer, Raster
  • Olivier Courtin: Developer, 3D TIN,Polyhedral Surface, GML/KML
  • Nicklas Aven: Developer, Distance and proximity relationship function improvements, 3D proximity functions
  • Jeff Lounsbury : Data Loading / Dumping