mapleFU commented on code in PR #43595:
URL: https://github.com/apache/arrow/pull/43595#discussion_r1719243469
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cpp/src/arrow/array/statistics.h:
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@@ -47,14 +47,14 @@ struct ARROW_EXPORT ArrayStatistics {
/// \brief The minimum value, may not be set
std::optional<ValueType> min = std::nullopt;
- /// \brief Whether the minimum value is exact or not, may not be set
- std::optional<bool> is_min_exact = std::nullopt;
+ /// \brief Whether the minimum value is exact or not
Review Comment:
Sorry for late replying
> Parquet 2.9 or earlier data don't have
is_min_value_exact/is_max_value_exact
Yes
> Parquet 2.9 or earlier data use only exact min/max
I guess no, I'll send a mail to maillist to make it sure
> Parquet 2.10 or later data use exact min/max or non-exact min/max
Yes
> Parquet 2.10 or later data may use exact min/max without
is_min_value_exact/is_max_value_exact
right
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