create function "pears"."TempShiftChangeOfHoursAllowed"(
in "shiftid" char(20),in "persid" char(20),in "vacid" char(20),in "timefrom" time,in "timeto" time,in "recoveryhours" integer )
returns long varchar
begin
declare "rv" long varchar;
set "rv" = '';
return("rv")
end