presto-kafka/src/main/java/io/prestosql/plugin/kafka/KafkaTopicFieldDescription.java/KafkaTopicFieldDescription/getColumnHandle
class KafkaTopicFieldDescription:    KafkaColumnHandle getColumnHandle(boolean keyDecoder, int index)
    {
        return new KafkaColumnHandle(
                index,
                getName(),
                getType(),
                getMapping(),
                getDataFormat(),
                getFormatHint(),
                keyDecoder,
                isHidden(),
                false);
    }