cyb70289 commented on code in PR #14353:
URL: https://github.com/apache/arrow/pull/14353#discussion_r1051808643
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cpp/src/parquet/column_reader.h:
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@@ -291,6 +293,8 @@ class PARQUET_EXPORT RecordReader {
/// \brief Pre-allocate space for data. Results in better flat read
performance
virtual void Reserve(int64_t num_values) = 0;
+ virtual void ReserveValues(int64_t capacity) {}
Review Comment:
Isn't it just a helper function specific to implementation?
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