CurtHagenlocher opened a new pull request, #36797: URL: https://github.com/apache/arrow/pull/36797
### What changes are included in this PR? Support dense and sparse unions in the C# implementation. Adds Archery support for C# unions. ### Are these changes tested? Yes ### Are there any user-facing changes? Unions are now supported in the C# implementation. **This PR includes breaking changes to public APIs.** The public APIs for the UnionArray and UnionType were changed fairly substantially. As these were previously not implemented properly, the impact of the changes ought to be minimal. The ChunkedArray and Column classes were changed to hold IArrowArrays instead of Arrays. To accomodate this, a constructor was added which may introduce ambiguity in calling code. This could be avoided by changing the overloaded constructor to instead be a factory method. This didn't seem worthwhile but could be reconsidered. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
