## H.3. Procedural Languages

Postgres Pro Enterprise includes several procedural languages with the base distribution: PL/pgSQL, PL/Tcl, PL/Perl, and PL/Python.

In addition, there are a number of procedural languages that are developed and maintained outside the core Postgres Pro Enterprise distribution. Table H.2 lists some of these packages. Note that some of these projects might not be released under the same license as Postgres Pro Enterprise. For more information on each procedural language, including licensing information, refer to its website and documentation.

Table H.2. Externally Maintained Procedural Languages

Name | Language | Website
--- | --- | ---
PL/Java | Java | https://tada.github.io/pljava/
PL/Lua | Lua | https://github.com/pllua/pllua
PL/R | R | http://www.joeconway.com/plr.html
PL/sh | Unix shell | https://github.com/petere/plsh
PL/v8 | JavaScript | https://github.com/plv8/plv8