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PostGIS

Introduction

postgis 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 for GIS.

PostGIS/PostgreSQL includes the following functionality:

Simple Features as defined by the OpenGIS Consortium (OGC)

Support for Well-Known Text and Well-Known Binary representations

of GIS objects

Fast spatial indexing using GiST

Geospatial analysis functions

PostgreSQL JDBC extension objects corresponding to the geometries

Support for OGC access functions as defined by the Simple Features

Specification

Related information

Here is the homepage: http://postgis.refractions.net/

The languages used are C++ and Perl.