alamb opened a new issue, #5375: URL: https://github.com/apache/arrow-rs/issues/5375
**Is your feature request related to a problem or challenge? Please describe what you are trying to do.** Recently two new types were added to the Arrow format that make it more suitable for certain types of operations on Lists Specifically when doing filtering / take with List data, creating a new `ListArray` or `LargeListArray` requires copying the underlying lists to a new, packed buffer. The "ListView" was designed to solve this limitation and recently added to the Arrow spec. **Describe the solution you'd like** I would like to implement `ListViewArray` and `LargeListViewArray` following the spec: The spec: https://arrow.apache.org/docs/format/Columnar.html#listview-layout Initially, I would suggest we get the basic types in place: - [ ] `DataType` - [ ] `Array` implementations and layout and basic construction Then as follow on PRs, add support to key kernels: - [ ] `cast` (to/from ListAray / LargeListArray) - [ ] `filter` - [ ] `take` **Describe alternatives you've considered** **Additional context** This is similar in spirit to the `StringViewArray` and `BinaryViewArray` described in https://github.com/apache/arrow-rs/issues/5374 -- 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]
