Virtual package bogofilter-db is provided by:
dpkg-query: no packages found matching bogofilter-sqlite dpkg-query: no packages found matching bogofilter-tokyocabinet Desired=Unknown/Install/Remove/Purge/Hold ||/ Name Version Architecture +++-==============-==========-==================================== ii bogofilter-bdb 1.2.5-1+b2 amd64 fast Bayesian spam filter (Berkeley DB) 1 packages