That is what http://packages.sabayon.org/show/ulogd, ... 5,standard
If you'll note, it was built with the mysql use flag.
Global: Adds extra documentation (API, Javadoc, etc). It is recommended to enable per package instead of globally
Global: Adds mySQL Database support
Local: Build MYSQL output plugin to save packets in a mysql database.
Global: Adds support for the postgresql database
Local: Build PGSQL output plugin to save packets in a postgres database.
Global: Add support for network packet capture via net-libs/libpcap
Local: Build PCAP output plugin to save packets in PCAP format. Uses the net-libs/libpcap library
Global: Adds support for sqlite - embedded sql database
Local: Build SQLITE3 output plugin to save packets in an sqlite database.
It looks like it is being maintained properly, but perhaps there is a bug in the code or in the ebuild.