Fast alternative to yum whatprovides

If yum whatprovides /path/to/file is slow for you, try a faster alternative:

rpm -q --whatprovides /path/to/file

For example:

$ rpm -q --whatprovides /usr/bin/clibrary
speech-dispatcher-0.7.1-5.fc15.x86_64

rpm is quite fast and yum is too slow. Get back to basics!