Ted-Jiang commented on code in PR #4255:
URL: https://github.com/apache/arrow-datafusion/pull/4255#discussion_r1028797172
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datafusion/core/src/physical_plan/file_format/parquet/page_filter.rs:
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@@ -390,16 +405,54 @@ macro_rules! get_min_max_values_for_page_index {
match $self.col_page_indexes {
Index::NONE => None,
Index::INT32(index) => {
- let vec = &index.indexes;
- Some(Arc::new(Int32Array::from_iter(
- vec.iter().map(|x| x.$func().cloned()),
- )))
+ match $self.target_type {
+ // int32 to decimal with the precision and scale
+ Some(DataType::Decimal128(precision, scale)) => {
+ let vec = &index.indexes;
+ let vec: Vec<Option<i128>> = vec
+ .iter()
+ .map(|x| x.min().and_then(|x| Some(*x as i128)))
Review Comment:
i will add a greater than test case.
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