ALTER_LANGUAGE - change the definition of a procedural language

       There is no ALTERLANGUAGE statement in the SQL standard.

ALTERLANGUAGE 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 ALTERLANGUAGE.

       ALTER_LANGUAGE - change the definition of a procedural language

name
           Name of a language

       new_name
           The new name of the language

       new_owner
           The new owner of the language

       CREATE LANGUAGE (CREATE_LANGUAGE(7)), DROP LANGUAGE (DROP_LANGUAGE(7))

PostgreSQL 17.5                                       2025                                     ALTERLANGUAGE(7)

       ALTER [ PROCEDURAL ] LANGUAGE name RENAME TO new_name
       ALTER [ PROCEDURAL ] LANGUAGE name OWNER TO { new_owner | CURRENT_ROLE | CURRENT_USER | SESSION_USER }