neilconway commented on code in PR #25389:
URL: https://github.com/apache/datafusion/pull/25389#discussion_r4053643193
##########
datafusion/physical-plan/src/unnest.rs:
##########
@@ -1435,15 +1444,272 @@ fn repeat_arrs_from_indices(
mod tests {
use super::*;
use arrow::array::{
- GenericListArray, Int32Array, NullBufferBuilder, OffsetSizeTrait,
StringArray,
+ BooleanArray, DictionaryArray, GenericListArray, Int32Array, MapArray,
NullArray,
+ NullBufferBuilder, OffsetSizeTrait, RunArray, StringArray,
StringViewArray,
+ UnionArray, layout,
};
use arrow::buffer::{NullBuffer, OffsetBuffer};
- use arrow::datatypes::{Field, Int32Type};
+ use arrow::datatypes::{Field, Int32Type, UnionFields};
use datafusion_common::NullHandling;
use datafusion_common::test_util::batches_to_string;
use datafusion_physical_expr_common::metrics::MetricValue;
use insta::assert_snapshot;
+ #[test]
+ fn test_flatten_struct_parent_nulls() -> Result<()> {
+ let values = Int32Array::from(vec![Some(1), Some(2), None]);
+ let mut children: Vec<ArrayRef> = vec![
+ Arc::new(values.clone()),
+ Arc::new(StringArray::from(vec![Some("x"), Some("y"), None])),
+ Arc::new(NullArray::new(3)),
+ Arc::new(RunArray::<Int32Type>::try_new(
+ &Int32Array::from(vec![2, 3]),
+ &Int32Array::from(vec![Some(1), None]),
+ )?),
+ ];
+ for offsets in [None, Some(vec![0, 1, 2].into())] {
+ children.push(Arc::new(UnionArray::try_new(
+ UnionFields::try_new([0], [Field::new("v", DataType::Int32,
true)])?,
+ vec![0, 0, 0].into(),
+ offsets,
+ vec![Arc::new(values.clone())],
+ )?));
+ }
+
+ for child in children {
+ let fields = vec![Field::new("v", child.data_type().clone(),
true)];
+ let schema =
Arc::new(Schema::new(vec![fields[0].clone().with_name("s.v")]));
+ for nulls in [None, Some(NullBuffer::from(vec![true, false,
true]))] {
+ let parent = StructArray::new(
+ fields.clone().into(),
+ vec![Arc::clone(&child)],
+ nulls.clone(),
+ );
+ let output = flatten_struct_cols(
+ &[Arc::new(parent)],
+ &schema,
+ &HashSet::from_iter([0]),
+ )?;
+ let result = output.column(0);
+ result.to_data().validate_full()?;
+ assert_eq!(result.data_type(), child.data_type());
+ if nulls.is_none() {
+ assert!(Arc::ptr_eq(result, &child));
+ } else {
+ assert_eq!(
+ result.logical_nulls(),
+ Some(NullBuffer::from(vec![
+ !child.data_type().is_null(),
+ false,
+ false,
+ ]))
+ );
+ assert_eq!(result.slice(0, 1).as_ref(), child.slice(0,
1).as_ref());
+ }
+ }
+ }
+ Ok(())
+ }
+
+ #[rstest::rstest]
Review Comment:
Do we need the rtest stuff? Seems like we can drop it.
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