Hi, you might want to lowercase the language names in order to be compatible with the case restriction introduced in 9.2. or add a sentence like 'when using single quotes, the names are case sensitive (with is lowercase for most (all?) languages).
regards, Marc Mamin http://www.postgresql.org/docs/9.3/static/sql-createfunction.html lang_name The name of the language that the function is implemented in. Can be SQL, C, internal, or the name of a user-defined procedural language. For backward compatibility, the name can be enclosed by single quotes. http://www.postgresql.org/docs/current/static/release-9-2.html No longer forcibly lowercase procedural language names in CREATE FUNCTION (Robert Haas) While unquoted language identifiers are still lowercased, strings and quoted identifiers are no longer forcibly down-cased. Thus for example CREATE FUNCTION ... LANGUAGE 'C' will no longer work; it must be spelled 'c', or better omit the quotes.
