LuQQiu commented on code in PR #15039:
URL: https://github.com/apache/datafusion/pull/15039#discussion_r1982505448
##########
datafusion/functions-nested/src/array_has.rs:
##########
@@ -439,6 +439,14 @@ fn array_has_all_and_any_dispatch<O: OffsetSizeTrait>(
) -> Result<ArrayRef> {
let haystack = as_generic_list_array::<O>(haystack)?;
let needle = as_generic_list_array::<O>(needle)?;
+ if needle.values().len() == 0 {
+ let result_value = match comparison_type {
+ ComparisonType::All => true,
+ ComparisonType::Any => false,
+ };
+ let result = BooleanArray::from(vec![result_value; haystack.len()]);
Review Comment:
Using
```
if needle.values().len() == 0 {
return match comparison_type {
ComparisonType::All =>
Ok(Arc::new(BooleanBuffer::new_set(haystack.len()))),
ComparisonType::Any =>
Ok(Arc::new(BooleanBuffer::new_unset(haystack.len())))
};
}
```
Runs into
```
the trait bound `BooleanBuffer: arrow::array::Array` is not satisfied
the following other types implement trait `arrow::array::Array`:
&T
BooleanArray
DictionaryArray<T>
FixedSizeBinaryArray
FixedSizeListArray
GenericByteArray<T>
GenericByteViewArray<T>
GenericListArray<OffsetSize>
and 10 others
required for the cast from `std::sync::Arc<BooleanBuffer>` to
`std::sync::Arc<dyn arrow::array::Array>`rustc[Click for full compiler
diagnostic](rust-analyzer-diagnostics-view:/diagnostic%20message%20[0]?0#file:///Users/lu/Projects/Github/Work/datafusion/datafusion/functions-nested/src/array_has.rs)
```
So confusing about the different types loll
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