Fix reporting of row group size by parquet writer

Output of parquet-tools
Before
Row group 25:  count: 2240892  26.32 B records  start: 1479039171  total(compressed): 56.243 MB total(uncompressed):56.243 MB

After
Row group 25:  count: 2244256  26.34 B records  start: 1479178837  total(compressed): 56.370 MB total(uncompressed):167.418 MB

Author: raunaqmorarka

lib/trino-parquet/src/main/java/io/trino/parquet/writer/ParquetWriter.java

@@ -374,9 +374,10 @@ Slice getFooter(List<RowGroup> rowGroups, MessageType messageType)
 
     private void updateRowGroups(List<ColumnMetaData> columnMetaData)
     {
-        long totalBytes = columnMetaData.stream().mapToLong(ColumnMetaData::getTotal_compressed_size).sum();
+        long totalCompressedBytes = columnMetaData.stream().mapToLong(ColumnMetaData::getTotal_compressed_size).sum();
+        long totalBytes = columnMetaData.stream().mapToLong(ColumnMetaData::getTotal_uncompressed_size).sum();
         ImmutableList<org.apache.parquet.format.ColumnChunk> columnChunks = columnMetaData.stream().map(ParquetWriter::toColumnChunk).collect(toImmutableList());
-        rowGroupBuilder.add(new RowGroup(columnChunks, totalBytes, rows));
+        rowGroupBuilder.add(new RowGroup(columnChunks, totalBytes, rows).setTotal_compressed_size(totalCompressedBytes));
     }
 
     private static org.apache.parquet.format.ColumnChunk toColumnChunk(ColumnMetaData metaData)