I wrote some perhaps useful functions for PostgreSQL. This project collect it and allows easy using of these functions.
The Pavel Stehule's collectionproject is a PostgreSQL Community project that is a part of the pgFoundry.
The pgFoundry page for the project is at http://pgfoundry.org/projects/pstcollection, where you can find downloads, documentation, bug reports, mailing lists, and a whole lot more.
