emkornfield commented on code in PR #17877:
URL: https://github.com/apache/arrow/pull/17877#discussion_r1080681488
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cpp/src/parquet/column_reader.h:
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@@ -367,6 +368,7 @@ class PARQUET_EXPORT RecordReader {
uint8_t* values() const { return values_->mutable_data(); }
/// \brief Number of values written including nulls (if any)
+ /// If read_dense_for_nullable_ is true this will not include nulls.
Review Comment:
nit: please try to phrase things relative to publicly visible APIs. E.g. if
this Reader was constructed with read_dense_for_nullable set to true. I think
rephrasing the `\brief` a little bit could make sense since we essentially
contradict (including nulls) if any on the very next line.
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