presto-orc/src/main/java/io/prestosql/orc/stream/LongInputStreamV1.java/LongInputStreamV1/LongInputStreamV1
class LongInputStreamV1:    public LongInputStreamV1(OrcInputStream input, boolean signed)
    {
        this.input = input;
        this.signed = signed;
        lastReadInputCheckpoint = input.getCheckpoint();
    }