viirya commented on code in PR #1602:
URL: https://github.com/apache/arrow-rs/pull/1602#discussion_r854358105
##########
arrow/src/array/array_list.rs:
##########
@@ -524,6 +516,32 @@ mod tests {
assert_eq!(list_array, another)
}
+ #[test]
+ fn test_empty_list_array() {
+ // Construct an empty value array
+ let value_data = ArrayData::builder(DataType::Int32)
+ .len(0)
+ .add_buffer(Buffer::from_iter(std::iter::empty::<i32>()))
Review Comment:
Hmm, I don't see C++ ListArray checks first slot in offsets, but it checks
the length of offsets:
https://github.com/apache/arrow/blob/c70426f73326b3852d1bd7c31d98be4743f3fcba/cpp/src/arrow/array/array_nested.cc#L111-L113
Seems it requires offsets to have non-zero length?
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