my %filter = (lang => $lang);
my $cols = "ref, array_to_string(form || alt, '/'), prio, id, sub";
%rows = $db->select(_word => $cols, \%filter)->map_arrays;
defined $_->[-1] or pop @$_ for values %rows;
my %filter = (lang => $lang);
my $cols = "ref, array_to_string(form || alt, '/'), prio, id, sub";
%rows = $db->select(_word => $cols, \%filter)->map_arrays;
defined $_->[-1] or pop @$_ for values %rows;