marvinlanhenke commented on code in PR #10801:
URL: https://github.com/apache/datafusion/pull/10801#discussion_r1628177847
##########
datafusion/core/src/datasource/physical_plan/parquet/statistics.rs:
##########
@@ -256,6 +259,13 @@ macro_rules! get_statistic {
Some(DataType::Float16) => {
Some(ScalarValue::Float16(from_bytes_to_f16(s.$bytes_func())))
}
+ Some(DataType::Interval(unit)) => {
+ match unit {
+ IntervalUnit::YearMonth =>
unimplemented!("Interval statistics not yet supported by parquet"),
Review Comment:
> in general, in rust `unimplemented!()` results in a panic which is not a
great user experience.
>
> I think this code purposely ignores errors (in order to gracefully handle
parquet files that might not have the expected statistics or that were created
from some other writer)
>
> Thus, I suggest changing these cases from `panic` to `None` (and then
adjusting the test appropriately)
>
> If we return `None`, once statistics are properly stored by the parquet-rs
writer, the test will fail on next upgrade and we can update the test with the
correct values
Yes, I see with the merge of #10711 the match arms changed; so I'll take a
look at that and adjust accordingly
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