presto-kudu/src/main/java/io/prestosql/plugin/kudu/KuduRecordCursor.java/KuduRecordCursor/getCurrentRowRawData
class KuduRecordCursor:    private org.apache.kudu.util.Slice getCurrentRowRawData()
    {
        if (rowDataField != null && currentRow != null) {
            try {
                return ((org.apache.kudu.util.Slice) rowDataField.get(currentRow));
            }
            catch (IllegalAccessException e) {
                return null;
            }
        }
        else {
            return null;
        }
    }