[ARROW-6643] [C#] Write no IPC buffer metadata for NullType

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: C#
• External issue URL: https://github.com/apache/arrow/issues/22994
• Assignee: Unassigned
• Reporter: Eric Erhardt
• Created: 20/Sep/19 15:51
• Updated: 11/Jan/23 07:48

Description

We need to align the C# writer (and test the reader) for NullType. See https://github.com/apache/arrow/pull/5287 and ARROW-6379.

 

>The C++ implementation has been writing 2 Buffer Flatbuffer struct values with length 0 for NullType. Rather than having dummy/placeholder Buffer I think it is more consistent to write no metadata for this type.

Issue Links

• relates to: ARROW-1636 [Format] Integration tests for null type
• relates to: ARROW-6379 [C++] Do not append any buffers when serializing NullType for IPC