We are pleased to announce the release of version 3.0 of the PL/Haskell extension. This extension allows users to write PostgreSQL functions in the Haskell functional programming language. Instructions can be found here.
Version 3.0 adds the ability to execute untrusted code which allows for greater flexibility of functionality.
Users of Ubuntu and Fedora can install the extension directly from the rpm and apt repositories.
If you have problems with the extension or a feature request, please submit a Github issue.