alamb commented on code in PR #10711:
URL: https://github.com/apache/datafusion/pull/10711#discussion_r1621096433
##########
datafusion/core/src/datasource/physical_plan/parquet/statistics.rs:
##########
@@ -556,8 +885,8 @@ mod test {
None,
None,
]),
- expected_min: timestamp_array([Some(1), Some(5), None]),
- expected_max: timestamp_array([Some(3), Some(9), None]),
+ expected_min: i64_array([Some(1), Some(5), None]),
Review Comment:
I see this is consistent with the existing code 👍
##########
datafusion/core/src/datasource/physical_plan/parquet/statistics.rs:
##########
@@ -211,19 +323,239 @@ pub(crate) fn min_statistics<'a, I: Iterator<Item =
Option<&'a ParquetStatistics
data_type: &DataType,
iterator: I,
) -> Result<ArrayRef> {
- let scalars = iterator
- .map(|x| x.and_then(|s| get_statistic!(s, min, min_bytes,
Some(data_type))));
- collect_scalars(data_type, scalars)
+ match data_type {
+ DataType::Boolean => Ok(Arc::new(BooleanArray::from_iter(
+ MinBooleanStatsIterator::new(iterator).map(|x| x.copied()),
+ ))),
+ DataType::Int8 => Ok(Arc::new(Int8Array::from_iter(
+ MinInt32StatsIterator::new(iterator).map(|x| {
+ x.and_then(|x| {
+ if let Ok(v) = i8::try_from(*x) {
+ Some(v)
+ } else {
+ None
+ }
+ })
+ }),
+ ))),
+ DataType::Int16 => Ok(Arc::new(Int16Array::from_iter(
+ MinInt32StatsIterator::new(iterator).map(|x| {
+ x.and_then(|x| {
+ if let Ok(v) = i16::try_from(*x) {
+ Some(v)
+ } else {
+ None
+ }
+ })
+ }),
+ ))),
+ DataType::Int32 => Ok(Arc::new(Int32Array::from_iter(
+ MinInt32StatsIterator::new(iterator).map(|x| x.copied()),
+ ))),
+ DataType::Int64 => Ok(Arc::new(Int64Array::from_iter(
+ MinInt64StatsIterator::new(iterator).map(|x| x.copied()),
+ ))),
+ DataType::UInt8 => Ok(Arc::new(UInt8Array::from_iter(
+ MinInt32StatsIterator::new(iterator).map(|x| {
+ x.and_then(|x| {
+ if let Ok(v) = u8::try_from(*x) {
+ Some(v)
+ } else {
+ None
+ }
+ })
+ }),
+ ))),
+ DataType::UInt16 => Ok(Arc::new(UInt16Array::from_iter(
+ MinInt32StatsIterator::new(iterator).map(|x| {
+ x.and_then(|x| {
+ if let Ok(v) = u16::try_from(*x) {
+ Some(v)
+ } else {
+ None
+ }
+ })
+ }),
+ ))),
+ DataType::UInt32 => Ok(Arc::new(UInt32Array::from_iter(
+ MinInt32StatsIterator::new(iterator).map(|x| x.map(|x| *x as u32)),
+ ))),
+ DataType::UInt64 => Ok(Arc::new(UInt64Array::from_iter(
+ MinInt64StatsIterator::new(iterator).map(|x| x.map(|x| *x as u64)),
+ ))),
+ DataType::Float32 => Ok(Arc::new(Float32Array::from_iter(
+ MinFloatStatsIterator::new(iterator).map(|x| x.copied()),
+ ))),
+ DataType::Float64 => Ok(Arc::new(Float64Array::from_iter(
+ MinDoubleStatsIterator::new(iterator).map(|x| x.copied()),
+ ))),
+ DataType::Date32 => Ok(Arc::new(Date32Array::from_iter(
+ MinInt32StatsIterator::new(iterator).map(|x| x.copied()),
+ ))),
+ DataType::Date64 => Ok(Arc::new(Date64Array::from_iter(
+ MinInt32StatsIterator::new(iterator)
+ .map(|x| x.map(|x| i64::from(*x) * 24 * 60 * 60 * 1000)),
+ ))),
+ DataType::Timestamp(_, _) => Ok(Arc::new(Int64Array::from_iter(
+ MinInt64StatsIterator::new(iterator).map(|x| x.copied()),
+ ))),
+ DataType::Binary => Ok(Arc::new(BinaryArray::from_iter(
+ MinByteArrayStatsIterator::new(iterator).map(|x| x.map(|x|
x.to_vec())),
+ ))),
+ DataType::Utf8 => Ok(Arc::new(StringArray::from_iter(
+ MinByteArrayStatsIterator::new(iterator).map(|x| {
+ x.and_then(|x| {
+ let res = std::str::from_utf8(x).map(|s|
s.to_string()).ok();
+ if res.is_none() {
+ log::debug!("Utf8 statistics is a non-UTF8 value,
ignoring it.");
+ }
+ res
+ })
+ }),
+ ))),
+ DataType::FixedSizeBinary(size) =>
Ok(Arc::new(FixedSizeBinaryArray::from(
+ MinFixedLenByteArrayStatsIterator::new(iterator).map(|x| {
+ x.and_then(|x| {
+ if x.len().try_into() == Ok(*size) {
+ Some(x)
+ } else {
+ log::debug!(
+ "FixedSizeBinary({}) statistics is a binary of
size {}, ignoring it.",
+ size,
+ x.len(),
+ );
+ None
+ }
+ })
+ }).collect::<Vec<_>>(),
+ ))),
+ _ => {
+ let scalars = iterator.map(|x| {
+ x.and_then(|s| get_statistic!(s, min, min_bytes,
Some(data_type)))
+ });
+ collect_scalars(data_type, scalars)
+ }
+ }
}
/// Extracts the max statistics from an iterator of [`ParquetStatistics`] to
an [`ArrayRef`]
pub(crate) fn max_statistics<'a, I: Iterator<Item = Option<&'a
ParquetStatistics>>>(
data_type: &DataType,
iterator: I,
) -> Result<ArrayRef> {
- let scalars = iterator
- .map(|x| x.and_then(|s| get_statistic!(s, max, max_bytes,
Some(data_type))));
- collect_scalars(data_type, scalars)
+ match data_type {
+ DataType::Boolean => Ok(Arc::new(BooleanArray::from_iter(
+ MaxBooleanStatsIterator::new(iterator).map(|x| x.copied()),
+ ))),
+ DataType::Int8 => Ok(Arc::new(Int8Array::from_iter(
+ MaxInt32StatsIterator::new(iterator).map(|x| {
+ x.and_then(|x| {
+ if let Ok(v) = i8::try_from(*x) {
+ Some(v)
+ } else {
+ None
+ }
+ })
+ }),
+ ))),
+ DataType::Int16 => Ok(Arc::new(Int16Array::from_iter(
+ MaxInt32StatsIterator::new(iterator).map(|x| {
+ x.and_then(|x| {
+ if let Ok(v) = i16::try_from(*x) {
+ Some(v)
+ } else {
+ None
+ }
+ })
+ }),
+ ))),
+ DataType::Int32 => Ok(Arc::new(Int32Array::from_iter(
+ MaxInt32StatsIterator::new(iterator).map(|x| x.copied()),
+ ))),
+ DataType::Int64 => Ok(Arc::new(Int64Array::from_iter(
+ MaxInt64StatsIterator::new(iterator).map(|x| x.copied()),
+ ))),
+ DataType::UInt8 => Ok(Arc::new(UInt8Array::from_iter(
+ MaxInt32StatsIterator::new(iterator).map(|x| {
+ x.and_then(|x| {
+ if let Ok(v) = u8::try_from(*x) {
+ Some(v)
+ } else {
+ None
+ }
+ })
+ }),
+ ))),
+ DataType::UInt16 => Ok(Arc::new(UInt16Array::from_iter(
+ MaxInt32StatsIterator::new(iterator).map(|x| {
+ x.and_then(|x| {
+ if let Ok(v) = u16::try_from(*x) {
+ Some(v)
+ } else {
+ None
+ }
+ })
+ }),
+ ))),
+ DataType::UInt32 => Ok(Arc::new(UInt32Array::from_iter(
+ MaxInt32StatsIterator::new(iterator).map(|x| x.map(|x| *x as u32)),
+ ))),
+ DataType::UInt64 => Ok(Arc::new(UInt64Array::from_iter(
+ MaxInt64StatsIterator::new(iterator).map(|x| x.map(|x| *x as u64)),
+ ))),
+ DataType::Float32 => Ok(Arc::new(Float32Array::from_iter(
+ MaxFloatStatsIterator::new(iterator).map(|x| x.copied()),
+ ))),
+ DataType::Float64 => Ok(Arc::new(Float64Array::from_iter(
+ MaxDoubleStatsIterator::new(iterator).map(|x| x.copied()),
+ ))),
+ DataType::Date32 => Ok(Arc::new(Date32Array::from_iter(
+ MaxInt32StatsIterator::new(iterator).map(|x| x.copied()),
+ ))),
+ DataType::Date64 => Ok(Arc::new(Date64Array::from_iter(
+ MaxInt32StatsIterator::new(iterator)
+ .map(|x| x.map(|x| i64::from(*x) * 24 * 60 * 60 * 1000)),
+ ))),
+ DataType::Timestamp(_, _) => Ok(Arc::new(Int64Array::from_iter(
Review Comment:
It is consistent with the existing code
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