pvary commented on code in PR #14435:
URL: https://github.com/apache/iceberg/pull/14435#discussion_r2486782518
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core/src/main/java/org/apache/iceberg/TableProperties.java:
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@@ -167,6 +167,16 @@ private TableProperties() {}
"write.parquet.bloom-filter-max-bytes";
public static final int PARQUET_BLOOM_FILTER_MAX_BYTES_DEFAULT = 1024 * 1024;
+ /**
+ * Controls whether to use ParquetFileMerger for row-group level merging
during compaction. When
+ * enabled, Parquet files are merged at the row-group level without full
deserialization,
+ * providing significant performance improvements (up to 13x faster)
compared to traditional
+ * read-rewrite approaches.
+ */
+ public static final String PARQUET_USE_FILE_MERGER =
"write.parquet.use-file-merger";
Review Comment:
Why is this a table property?
Shouldn't this be a property for the rewrite?
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