should be faster than using IN on large lists

lib/App/Netdisco/DB/Result/Virtual/PortMacs.pm

@@ -0,0 +1,33 @@
+use utf8;
+package App::Netdisco::DB::Result::Virtual::PortMacs;
+
+use strict;
+use warnings;
+
+use base 'DBIx::Class::Core';
+
+__PACKAGE__->table_class('DBIx::Class::ResultSource::View');
+
+__PACKAGE__->table("port_macs");
+__PACKAGE__->result_source_instance->is_virtual(1);
+__PACKAGE__->result_source_instance->view_definition(<<ENDSQL
+  SELECT all.ip, all.mac
+
+  FROM
+    (SELECT ip, mac FROM device
+      UNION
+    SELECT ip, mac FROM device_port) all
+
+  INNER JOIN
+    (SELECT unnest( ? )) locals(m)
+    ON (all.mac = locals.m ::macaddr)
+
+ENDSQL
+);
+
+__PACKAGE__->add_columns(
+  'mac' => { data_type => 'macaddr' },
+  'ip'  => { data_type => 'inet' },
+);
+
+1;