Supported versions: Current (18) / 17 / 16 / 15 / 14

Development versions: 19 / 20devel

Unsupported versions: 13 / 12 / 11 / 10 / 9.6 / 9.5 / 9.4 / 9.3 / 9.2 / 9.1 / 9.0 / 8.4 / 8.3 / 8.2 / 8.1 / 8.0 / 7.4 / 7.3 / 7.2 / 7.1

Historical version. PostgreSQL 8.2 has reached end of support. See the current manual.

DROP LANGUAGE

Name

DROP LANGUAGE -- remove a procedural language

DROP [ PROCEDURAL ] LANGUAGE [ IF EXISTS ] name [ CASCADE | RESTRICT ]

DROP LANGUAGE will remove the definition of the previously registered procedural language called name.

IF EXISTS: Do not throw an error if the function does not exist. A notice is issued in this case.
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 any objects depend on it. This is the default.

This command removes the procedural language plsample:

DROP LANGUAGE plsample;

There is no DROP LANGUAGE statement in the SQL standard.

Read the upstream documentation. For corrections, first check the current manual.