CREATE FUNCTION validateSession(session_id char(64),client_ip inet,user_agent char(40),forcedTimeout bigint,sessionTimeout bigint) RETURNS json AS $$
CREATE OR REPLACE FUNCTION public.validatesession(s_id character, client_ip inet, user_agent character, forcedtimeout bigint, sessiontimeout bigint) RETURNS json
As an aside, and going from memory, you will note that Adrian kept the "character" type in the function signature
but removed the length specifier. PostgreSQL does not store that information and so will not prevent a call from passing in a string longer than 64 characters into the function. This applies to any specification in () following a type declaration (say for numeric or timestamptz)
