VOTE.
New Database Server parameter, preventing the selection of unknown values (?) using operator > (GT) for an indexed field.
https://community.progress.com/businessusers/i/openedge_database_enhancements_-_tell_us_what_youd_like_to_see/new_database_server_parameter_preventing_the_selection_of_unspecified_values__using_operator__for_an_indexed_field_.aspx
