my @uniq_ids = uniq (@old_ids);                                   # uniq_ids
#   ~~~~~~~~
my $topic = $dbh->selectrow_hashref($stmt, undef, $uniq_id[$i]);  # uniq_id
#                                                  ~~~~~~~


##</code><code>##

($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord
}map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,