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 spatial database for geographic information systems (GIS). 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 as a project in open source spatial database technology and is released under the GNU General Public License. It continues to be developed, with recent features including basic topology support, data validation, coordinate transformation, curved geometries, programming APIs and much more.

LISAsoft has worked with PostGIS extensively. Our projects have involved deploying and configuring PostGIS backends for high performance applications, as well as extending the core functionality.