This is Perl module AnyEvent::DBI::Abstract::Limit. INSTALLATION AnyEvent::DBI::Abstract::Limit installation is straightforward. If your CPAN shell is set up, you should just be able to do % cpan AnyEvent::DBI::Abstract::Limit Download it, unpack it, then build it as per the usual: % perl Makefile.PL % make && make test Then install it: % make install DOCUMENTATION AnyEvent::DBI::Abstract::Limit documentation is available as in POD. So you can do: % perldoc AnyEvent::DBI::Abstract::Limit to read the documentation online with your favorite pager. Nobuo Danjou