PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings.
The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/.
Follow the instructions in Installation from Source Code to learn how to compile PostgreSQL for your platform.
Changes to PostgreSQL source code are proposed as patches, attached to emails that are sent to the pgsql-hackers mailing list.
During CommitFest events, patches are reviewed and committed to PostgreSQL, for release in a future version.
Read more about making contributions on the So, you want to be a developer? wiki page.
Copyright and license information can be found in the file COPYRIGHT.