edmondop commented on code in PR #7897:
URL: https://github.com/apache/arrow-datafusion/pull/7897#discussion_r1385967435
##########
datafusion/physical-expr/src/array_expressions.rs:
##########
@@ -1358,6 +1360,94 @@ macro_rules! to_string {
}};
}
+fn union_generic_lists<OffsetSize: OffsetSizeTrait>(
+ l: &GenericListArray<OffsetSize>,
+ r: &GenericListArray<OffsetSize>,
+) -> Result<GenericListArray<OffsetSize>, DataFusionError> {
+ let converter =
+
RowConverter::new(vec![SortField::new(l.value_type().clone())]).unwrap();
+
+ let nulls = NullBuffer::union(l.nulls(), r.nulls());
+ let field = Arc::new(Field::new(
+ "item",
+ l.value_type().to_owned(),
+ l.is_nullable(),
Review Comment:
I am looking at the ArrayRef and Lists API, I don't find how I could
retrieve the FieldRef I am looking for, where is it?
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