plpython3u

PL/Python3u is a procedural language handler for the PostgreSQL database system that allows users to write stored procedures, functions, and triggers in Python 3. The 'u' in PL/Python3u signifies that it is an untrusted language, meaning it runs in the same process as the PostgreSQL server and can potentially affect the server's stability if not written carefully. This untrusted nature, however, allows for greater performance and access to PostgreSQL internals compared to its trusted counterpart, PL/Python.

Using PL/Python3u enables developers to leverage the extensive libraries and features of the Python programming language directly within their database. This can be beneficial for complex data manipulation, string processing, interacting with external services, or implementing sophisticated algorithms that might be cumbersome or less efficient in SQL alone.

To use PL/Python3u, it must first be enabled in a PostgreSQL database using the CREATE EXTENSION command. Once enabled, functions can be defined using the PL/Python3u language. While powerful, developers must exercise caution due to the untrusted nature of the handler, ensuring code is robust and avoids potential security vulnerabilities or performance issues that could impact the database server.