fixup! Report physical size written by the MERGE statement

Author: ebyhr

plugin/trino-delta-lake/src/main/java/io/trino/plugin/deltalake/DeltaLakeMergeSink.java

@@ -502,6 +502,7 @@ private List<Slice> rewriteFile(String sourcePath, FileDeletion deletion)
                     DATA);
 
             Optional<DataFileInfo> newFileInfo = rewriteParquetFile(sourceLocation, deletion, writer);
+            writtenBytes += writer.getWrittenBytes();
 
             DeltaLakeMergeResult result = new DeltaLakeMergeResult(deletion.partitionValues(), Optional.of(sourceReferencePath), Optional.empty(), newFileInfo);
             return ImmutableList.of(utf8Slice(mergeResultJsonCodec.toJson(result)));