@Override
  public boolean equals(Object obj) {
    if (this == obj) {
      return true;
    }
    if (!(obj instanceof Deletion)) {
      return false;
    }
    Deletion del = (Deletion) obj;
    return super.equals(obj) && del.timeRange.equals(this.timeRange);
  }
constructor of Deletion.

@param startTime start time of delete interval
@param endTime end time of delete interval
@param path time series path
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/storageengine/dataregion/modification/v1/Deletion.java