@Override
  public List<Long> splitOffsets() {
    return ParquetUtil.getSplitOffsets(writer.getFooter());
  }
Returns the approximate length of the output file produced by this writer.

<p>Prior to calling {@link AdaptHiveParquetWriter#close}, the result is approximate. After
calling close, the length is exact.

@return the approximate length of the output file produced by this writer or the exact length
    if this writer is closed.
amoro-format-mixed/amoro-mixed-hive/src/main/java/org/apache/iceberg/parquet/AdaptHiveParquetWriter.java