DROP 
LANGUAGE(7) SQL Commands DROP LANGUAGE(7) NAME
DROP LANGUAGE - remove a user-defined procedural language SYNOPSIS
DROP [ PROCEDURAL ] LANGUAGE name [ CASCADE | RESTRICT ] INPUTS name The name of an existing procedural language. For backward compatibility, the name may be enclosed by single quotes. CASCADE Automatically drop objects that depend on the language (such as functions in the language). RESTRICT Refuse to drop the language if there are any dependent objects. This is the default. OUTPUTS DROP LANGUAGE This message is returned if the language is successfully dropped. ERROR: Language "name" doesn't exist This message occurs if a language called name is not found in the database. DESCRIPTION
DROP PROCEDURAL LANGUAGE will remove the definition of the previously registered procedural language called name. NOTES The DROP PROCEDURAL LANGUAGE statement is a PostgreSQL language extension. Refer to CREATE LANGUAGE [create_language(7)] for information on how to create procedural languages. USAGE
This command removes the PL/Sample language: DROP LANGUAGE plsample; COMPATIBILITY
SQL92 There is no DROP PROCEDURAL LANGUAGE in SQL92. SQL - Language Statements 2002-11-22 DROP LANGUAGE(7)