db error in Connection.pm

[ClayBirkett]

When running bin/load_map_data.pl I get an error
DBD::Pg::db selectrow_array failed: ERROR: cross-database references are not implemented: "sgn.sgn.map_map_id_seq"
LINE 1: SELECT currval('sgn.sgn.map_map_id_seq')
at /home/production/cxgn/cxgn-corelibs/lib/CXGN/DB/Connection.pm line 71, line 1

The error can be fixed by the following changing
my ($id) = $self->selectrow_array("SELECT currval('$schema.$seq')")
to
my ($id) = $self->selectrow_array("SELECT currval('$seq')")