This project add to PostgreSQL JSON support. It's based on Bauman JSON support for MySQL. This project needs patched PostgreSQL (variadic functions and named params).
The JSON Supportproject is a PostgreSQL Community project that is a part of the pgFoundry.
The pgFoundry page for the project is at http://pgfoundry.org/projects/json, where you can find downloads, documentation, bug reports, mailing lists, and a whole lot more.