[GitHub] [arrow-rs] jhorstmann commented on a diff in pull request #1602: Don't access and validate offset buffer in ListArray::from(ArrayData)

[GitBox]

jhorstmann commented on code in PR #1602:
URL: https://github.com/apache/arrow-rs/pull/1602#discussion_r856872978


##########
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:
   Seems like [arrow2 also requires at least one 
offset](https://github.com/jorgecarleitao/arrow2/blob/8fb3b8d3f05cdc3d51f1314cfeb9bec39196789c/src/array/specification.rs#L101)



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