Chapter 41. PL/Perl - Perl Procedural Language
PL/Perl is a loadable procedural language that enables you to write
PostgreSQL functions in the
Perl programming language.
The main advantage to using PL/Perl is that this allows use,
within stored functions, of the manyfold "string
munging" operators and functions available for Perl. Parsing
complex strings might be easier using Perl than it is with the
string functions and control structures provided in PL/pgSQL.
To install PL/Perl in a particular database, use
CREATE EXTENSION plperl, or from the shell command line use
createlang plperl dbname.
Tip: If a language is installed into template1, all subsequently
created databases will have the language installed automatically.
Note: Users of source packages must specially enable the build of
PL/Perl during the installation process. (Refer to Chapter 15 for more information.) Users of
binary packages might find PL/Perl in a separate subpackage.