alamb opened a new issue #1158: URL: https://github.com/apache/arrow-rs/issues/1158
**Is your feature request related to a problem or challenge? Please describe what you are trying to do.** Right now it is quite cumbersome to create a `MapArray` as one has to create an `ArrayData` from a `StructArray` . `MapArray` was contributed by @nevi-me in https://github.com/apache/arrow-rs/pull/491 https://github.com/apache/arrow-rs/blob/e898de57e4587c64387939f8a557bc5fa2dffeb8/arrow/src/array/array_map.rs#L243-L282 **Describe the solution you'd like** It would be great to be able to create a `MapArray` directly from the appropriate `StructArray`. Something like this perhaps (though other proposals more than welcome): ```rust let entry_array = StructArray::from(vec![ (keys, make_array(keys_data)), (values, make_array(values_data)), ]); let map_array = MapArray::from(&entry_array).unwrap(); ``` Where `entry_array` would need to have two fields where the first was strings The impl might look like ``` impl From<&StructArray> for MapArray { ... } ``` **Describe alternatives you've considered** A clear and concise description of any alternative solutions or features you've considered. **Additional context** https://github.com/apache/arrow-rs/pull/1149#discussion_r782433887 -- 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]
