I am plpgsql_check author and now, I am solving bug related to cached plpgsql function. I am not able fore plpgsql compilation - and sometimes the compiled version can be obsolete. As protection to false alarms, I need fresh compilation immediately before plpgsql_check call.
I need a new option "NoCache" to plpgsql_compile function. If this option will be true, then function_valid will be false.