@Override
  public boolean equals(Object o) {
    if (this == o) {
      return true;
    }
    if (o == null || getClass() != o.getClass()) {
      return false;
    }
    TsFileID that = (TsFileID) o;
    return regionId == that.regionId
        && timePartitionId == that.timePartitionId
        && timestamp == that.timestamp
        && fileVersion == that.fileVersion
        && compactionVersion == that.compactionVersion;
  }
@return a long array whose length is 3, the first long value is tsfile timestamp, the second
    long value is tsfile version, the third long value is compaction version , high 32 bit is
    in-space compaction count, low 32 bit is cross-space compaction count
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/storageengine/dataregion/tsfile/TsFileID.java