kszucs commented on code in PR #45360:
URL: https://github.com/apache/arrow/pull/45360#discussion_r2025098659


##########
cpp/src/parquet/properties.h:
##########
@@ -245,6 +245,14 @@ class PARQUET_EXPORT ColumnProperties {
   bool page_index_enabled_;
 };
 
+struct CDCOptions {
+  int64_t min_chunk_size;
+  int64_t max_chunk_size;
+  int8_t norm_factor;
+};
+
+static constexpr CDCOptions kDefaultCdcOptions = CDCOptions{256 * 1024, 1024 * 
1024, 0};

Review Comment:
   Regarding the data page size, the default is
   ```cpp
   static constexpr int64_t kDefaultDataPageSize = 1024 * 1024;
   ```



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