@Override
  public String toString() {
    return "FileSealPayload{fileName="
        + fileName
        + ", fileLength="
        + fileLength
        + ", databaseName="
        + databaseName
        + "}";
  }
The database name of the file (for table model only).
iotdb-client/service-rpc/src/main/java/org/apache/iotdb/rpc/subscription/payload/poll/FileSealPayload.java