public FilesStatistics getInputFilesStatistics() {
    FilesStatisticsBuilder inputBuilder = new FilesStatisticsBuilder();
    inputBuilder.addFiles(equalityDeleteSize, eqDeleteFileCnt);
    inputBuilder.addFiles(Math.max(positionDeleteSize, positionalDeleteSize), posDeleteFileCnt);
    inputBuilder.addFiles(rewriteDataSize, rewriteDataFileCnt);
    inputBuilder.addFiles(
        rewritePosDataSize, Math.max(reRowDeletedDataFileCnt, rewritePosDataFileCnt));
    return inputBuilder.build();
  }
Only position delete files will be generated
amoro-format-iceberg/src/main/java/org/apache/amoro/optimizing/MetricsSummary.java