Chapter 10. Extended PostgreSQL—Software for PostgreSQL
Some programmers have developed tools, modules, and examples that have not been included in the core distribution of PostgreSQL, but can be found in the contributed section, which is included in the tar-ball containing the source code of PostgreSQL.
These tools are not maintained by the PostgreSQL core development team, because some of them are addressed to only a small audience or are not high-quality software, like the core of PostgreSQL.
Although contributed software is not a core part of PostgreSQL, it is worth having a closer look at some of the tools. This section presents an overview of the most useful tools included in the contributed section of the PostgreSQL distribution. ...