[Exim] 2 mysql lookups in local_domains?

My local_domains currently looks like this:


local_domains = elrond.dso.net:localhost:mysql;select domain_name from
domain where domain_name='$key'


What I'd like it to do is to check 2 tables, and return positive if
the domain ($key) exists in either table.

Is this possible? My initial experiment (below) failed, everything
was lookup deferred.

local_domains = elrond.dso.net:localhost:mysql;select domain_name from
domain where domain_name='$key':mysql;select domain_name from
other_domains where domain_name='$key'


--
Best regards,
William X Walsh <william@???>