presto-redis/src/main/java/io/prestosql/plugin/redis/RedisInternalFieldDescription.java/RedisInternalFieldDescription/getColumnHandle
class RedisInternalFieldDescription:    RedisColumnHandle getColumnHandle(int index, boolean hidden)
    {
        return new RedisColumnHandle(
                index,
                getColumnName(),
                getType(),
                null,
                null,
                null,
                false,
                hidden,
                true);
    }