protected CloseableIterable<Record> openParquet(
      InputFile input, Schema deleteSchema, Map<Integer, Object> idToConstant) {
    Parquet.ReadBuilder builder =
        Parquet.read(input)
            .project(deleteSchema)
            .reuseContainers()
            .createReaderFunc(
                fileSchema ->
                    GenericParquetReaders.buildReader(deleteSchema, fileSchema, idToConstant));

    return builder.build();
  }
@return The data in equity delete file
amoro-format-iceberg/src/main/java/org/apache/amoro/io/reader/MixedDeleteFilter.java