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H.3. Procedural Languages
PostgreSQL includes several procedural languages with the base distribution:PL/pgSQL,PL/Tcl,PL/Perl, andPL/Python.
In addition, there are a number of procedural languages that are developed and maintained outside the corePostgreSQL distribution.Table H-2 lists some of these packages. Note that some of these projects might not be released under the same license asPostgreSQL. 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 | http://pljava.projects.postgresql.org/ |
| PL/PHP | PHP | http://www.commandprompt.com/community/plphp/ |
| PL/Py | Python | http://python.projects.postgresql.org/backend/ |
| PL/R | R | http://www.joeconway.com/plr/ |
| PL/Ruby | Ruby | http://raa.ruby-lang.org/project/pl-ruby/ |
| PL/Scheme | Scheme | http://plscheme.projects.postgresql.org/ |
| PL/sh | Unix shell | http://plsh.projects.postgresql.org/ |