[pacman-dev] required by relation

Hi, All! I wrote in the arch mailing list about problem with versioned libs such as openssl and db. When I update such lib I should update all packages that depends on it, but pacman can not give me list of such packages. I see I can write trivial one line script or use gtkpacman or update whole system, but I think it is wrong when "pacman -Sy openssl db" breaks system. What do you think about it? (May be it is feature request...)