I have a subroutine I use to insert a records into a postgres database using DBI and DBD::Pg as a driver. I've used it for years with no problems. $dbh is an established connection, and $data is a reference to a hash with the column names and values to be inserted:

sub insertsql {
    my ($dbh,$table,$data) = @_;
    my @qm;
    my @keys;
    my @values;
    my $i = -1;
    foreach my $k (keys %$data) {
        if (defined($data->{$k})) {
            $i++;
            $keys[$i] = $k;
            $values[$i] = $data->{$k};
            $qm[$i] = '?';
        }
    }
    my $keylist = join(",",@keys);
    my $qlist = join(",",@qm);
    my $sqlstatement = "insert into $table ($keylist) values ($qlist) 
+returning id";    
    my $sth = $dbh->prepare($sqlstatement);
    $sth->execute(@values) || die $sth->errstr;
    $sth->finish();
    return;
}
[download]

I am using this to insert some crowdtangle data. After the 17th line, $sqlstatement looks like this:

insert into crowdtangle (postUrl,crowdtangle_id,statistics,account,dew
+indowfy_content,expandedLinks,score,description,message,posted,media,
+subscriberCount,updated,platform,type) values (?,?,?,?,?,?,?,?,?,?,?,
+?,?,?,?) returning id
[download]

When I execute the query I get this:

DBD::Pg::st execute failed: ERROR:  column "posturl" of relation "crow
+dtangle" does not exist
LINE 1: insert into crowdtangle (postUrl,crowdtangle_id,statistics,a..
+.
                                 ^ at c:/perlmodules/SqlSupport.pm lin
+e 70.
[download]

It is right, column posturl does not exist. The column name is postUrl with a capital U, like I had it in the query. What could be going on here?

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