[GitHub] [parquet-format] emkornfield commented on a diff in pull request #197: PARQUET-2261: add statistics for better estimating unencoded/uncompressed sizes and finer grained filtering

["emkornfield (via GitHub)" <gi...@apache.org>]

emkornfield commented on code in PR #197:
URL: https://github.com/apache/parquet-format/pull/197#discussion_r1313329517


##########
src/main/thrift/parquet.thrift:
##########
@@ -764,6 +845,14 @@ struct ColumnMetaData {
    * in a single I/O.
    */
   15: optional i32 bloom_filter_length;
+
+  /**
+   * Optional statistics to help estimate total memory when converted to in
+   * memory representations. The histogram contained on these statistics can
+   * also be useful in some cases for more fine-grained nullability/list length
+   * filter pushdown.
+   */
+  16: optional SizeStatistics size_estimate_statistics;

Review Comment:
   yes. done.



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