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Cherry pick Write boolean stats for boolean columns (not i32 stats) to active_release #682

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Merged
alamb merged 1 commit into from
Aug 12, 2021
Merged

Cherry pick Write boolean stats for boolean columns (not i32 stats) to active_release #682

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12 changes: 5 additions & 7 deletions parquet/src/column/writer.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -919,7 +919,7 @@ impl<T: DataType> ColumnWriterImpl<T> {
};
match self.descr.physical_type() {
Type::INT32 => gen_stats_section!(i32, int32, min, max, distinct, nulls),
Type::BOOLEAN => gen_stats_section!(i32, int32, min, max, distinct, nulls),
Type::BOOLEAN => gen_stats_section!(bool, boolean, min, max, distinct, nulls),
Type::INT64 => gen_stats_section!(i64, int64, min, max, distinct, nulls),
Type::INT96 => gen_stats_section!(Int96, int96, min, max, distinct, nulls),
Type::FLOAT => gen_stats_section!(f32, float, min, max, distinct, nulls),
Expand Down Expand Up @@ -1691,13 +1691,11 @@ mod tests {
fn test_bool_statistics() {
let stats = statistics_roundtrip::<BoolType>(&[true, false, false, true]);
assert!(stats.has_min_max_set());
// should it be BooleanStatistics??
// https://github.com/apache/arrow-rs/issues/659
if let Statistics::Int32(stats) = stats {
assert_eq!(stats.min(), &0);
assert_eq!(stats.max(), &1);
if let Statistics::Boolean(stats) = stats {
assert_eq!(stats.min(), &false);
assert_eq!(stats.max(), &true);
} else {
panic!("expecting Statistics::Int32, got {:?}", stats);
panic!("expecting Statistics::Boolean, got {:?}", stats);
}
}

Expand Down