@Override
  public boolean equals(Object o) {
    if (this == o) {
      return true;
    }
    if (o == null || getClass() != o.getClass()) {
      return false;
    }
    DatasetHeader that = (DatasetHeader) o;
    return isIgnoreTimestamp == that.isIgnoreTimestamp && columnHeaders.equals(that.columnHeaders);
  }
The header of query result dataset.
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/common/header/DatasetHeader.java