[GitHub] [arrow] jp0317 commented on a diff in pull request #36649: PARQUET-2323: [C++] use bit vector to store prebuffered column chunks

[via GitHub]

jp0317 commented on code in PR #36649:
URL: https://github.com/apache/arrow/pull/36649#discussion_r1265577343


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cpp/src/parquet/file_reader.cc:
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@@ -272,7 +273,7 @@ class SerializedRowGroup : public RowGroupReader::Contents {
   std::unique_ptr<RowGroupMetaData> row_group_metadata_;
   ReaderProperties properties_;
   int row_group_ordinal_;
-  const std::unordered_set<int> prebuffered_column_chunks_;
+  std::shared_ptr<Buffer> prebuffered_column_chunks_bitmap_;

Review Comment:
   no, changed to const, thanks



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