presto-tpcds/src/main/java/io/prestosql/plugin/tpcds/TpcdsRecordSet.java/TpcdsRecordSet/getDouble
class TpcdsRecordSet:        @Override
        public double getDouble(int field)
        {
            checkState(row != null, "No current row");
            return parseDouble(row.get(columns.get(field).getPosition()));
        }