Note first that you probably want my $rows = $dbh->selectall_arrayref( ... ) instead of selectrow_arrayref()
are those column names right? should they be "colIP", "colPartitionSize", "colPartitionFree" instead?
Besides that, the SQL looks fine .. do the statements "SELECT IP FROM results" and "SELECT IP FROM results GROUP BY IP" and "SELECT SUM(PartitionSize), SUM(PartitionFree) FROM results" work?
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