[SQL] trigger error

[Yudie]

Hi, I',m trying to create trigger with plpgsql trigger function then I got this error message when trigger executed:   Number: -2147467259 Error while executing th query; ERROR: fmgr_info: function 1546856080: cache lookup failed   Here is the function code:   CREATE FUNCTION TRIGGER_UPDATE_AXPRDT_STATUS() RETURNS OPAQUE AS 'BEGIN   IF NEW. THEN     NEW.STATUS = ''D'';   END IF;   RETURN NEW; END;' LANGUAGE 'plpgsql';   CREATE TRIGGER TRIGGER_AXPRDT_FUTURESTATUS BEFORE UPDATE ON AXPRDT FOR EACH ROW EXECUTE PROCEDURE TRIGGER_UPDATE_AXPRDT_STATUS();     Please Help..   Yudie