my $orig = $ibx->over->query_xover(1, $ndoc);
my %nums = map {; "$_->{num}" => 1 } @$orig;
# ensure we can go up or down in shards, or stay the same:
for my $R (qw(2 4 1 3 3)) {
delete $ibx->{search}; # release old handles
my $orig = $ibx->over->query_xover(1, $ndoc);
my %nums = map {; "$_->{num}" => 1 } @$orig;
# ensure we can go up or down in shards, or stay the same:
for my $R (qw(2 4 1 3 3)) {
delete $ibx->{search}; # release old handles