presto-hive/src/main/java/io/prestosql/plugin/hive/GenericHiveRecordCursor.java/GenericHiveRecordCursor/getCompletedBytes
class GenericHiveRecordCursor:    @Override
    public long getCompletedBytes()
    {
        if (!closed) {
            updateCompletedBytes();
        }
        return completedBytes;
    }