Change the definition of a procedural language
ALTER [ PROCEDURAL ] LANGUAGE name RENAME TO new_name ALTER [ PROCEDURAL ] LANGUAGE name OWNER TO new_owner
ALTER LANGUAGE changes the definition of a procedural language. The only functionality is to rename the language or assign a new owner. You must be superuser or owner of the language to use ALTER LANGUAGE.
Name of a language
The new name of the language
The new owner of the language
There is no ALTER LANGUAGE statement in the SQL standard.