PostgreSQL is a complex software project, and managing the project is difficult. We have found that many enhancements to PostgreSQL can be more efficiently developed separately from the core project. To help our community with the development of their external projects, we have created the PgFoundry. PgFoundry is built using the GForge software project and is similar to SourceForge in its feature set. If you have a PostgreSQL related Open Source project that you would like to develop and need project management resources such as mailing lists, forums, bug tracking, and CVS, please feel free to create a new project. Secondly, many PostgreSQL-related projects are still hosted at GBorg. GBorg is the original external community developer site, and while it is currently closed to new projects in favor of PgFoundry, it still contains many active and relevant projects. There are other popular PostgreSQL related projects that are hosted independently as well at other community sites such as SourceForge. You should search the web if you don't find the project you are looking for. interfaces PostgreSQL includes very few interfaces with the base distribution. libpq is packaged because it is the primary C interface and many other interfaces are build on top of it. ecpg is also packaged because it is tied to the server-side grammar so is very dependent on the database version. All the other interfaces, such as ODBC, Java, Perl, Python, and others, are external projects and must be installed separately. Some of the more popular interfaces are: psqlODBC This is the most common interface for Windows applications. Website. ODBCng Another ODBC driver for PostgreSQL. Website. PostgreSQL JDBC Driver A JDBC interface. Website. Npgsql .Net data provider for C# applications. Website. libpqxx A C++ interface. Website. DBD::Pg A Perl DBI driver for PostgreSQL. Website. pgtclng A Tcl interface. Website. pyscopg A Python interface library that is DB API 2.0 compliant. Website. extensions PostgreSQL was designed from the start to be extensible. For this reason, extensions loaded into the database can function just like features that are packaged with the database. The contrib/ directory shipped with the source code contains a large number of extensions. The README file in that directory contains a summary. They include conversion tools, full-text indexing, XML tools, and additional data types and indexing methods. Other extensions are developed independently, like PostGIS. Even PostgreSQL replication solutions are developed externally. For example, Slony-I is a popular master/slave replication solution that is developed independently from the core project. There are several administration tools available for PostgreSQL. The most popular is pgAdmin III, and there are several commercially available ones as well.