+my $cust_pkg_fields =
+ join(', ', map { "cust_pkg.$_ AS $_" } fields('cust_pkg') );
+
+my $part_pkg_fields =
+ join(', ', ( map { "part_pkg.$_ AS part_pkg_$_" } fields('part_pkg') ),
+ 'setup_option.optionvalue AS part_pkg__setup_fee',
+ 'recur_option.optionvalue AS part_pkg__recur_fee',
+ );
+
+my $group_by =
+ join(', ', map "cust_pkg.$_", fields('cust_pkg') ). ', '.
+ join(', ', map "part_pkg.$_", fields('part_pkg') );
+
+my $num_svcs = '( SELECT COUNT(*) FROM cust_svc '.
+ ' WHERE cust_svc.pkgnum = cust_pkg.pkgnum ) AS num_svcs';
+
+# don't exclude cancelled packages at this stage
+my @packages = $cust_main->all_pkgs( {
+ 'select' => "$cust_pkg_fields, $part_pkg_fields, $num_svcs",
+ 'addl_from' => qq{
+ LEFT JOIN part_pkg USING ( pkgpart )
+ LEFT JOIN part_pkg_option AS setup_option
+ ON ( cust_pkg.pkgpart = setup_option.pkgpart
+ AND setup_option.optionname = 'setup_fee' )
+ LEFT JOIN part_pkg_option AS recur_option
+ ON ( cust_pkg.pkgpart = recur_option.pkgpart
+ AND recur_option.optionname = 'recur_fee' )
+ },
+} );
+
+my %change_to_from; # target pkgnum => current cust_pkg, for future changes
+my %changed_from; # old pkgnum => new cust_pkg, for past changes