Ted-Jiang opened a new issue, #3655: URL: https://github.com/apache/arrow-rs/issues/3655
**Is your feature request related to a problem or challenge? Please describe what you are trying to do.** now Array trait only support `as_any` https://github.com/apache/arrow-rs/blob/9728c676b50b19c06643a23daba4aa4a1dc48055/arrow-array/src/array/mod.rs#L72-L106 When I implementing using copy on write to evaluate `col_x+1` binary_expr, I need cast `ArrayRef` to `PrimitiveArray` with ownership and with strong reference one😩 then pass to `unary_mut`. https://github.com/apache/arrow-rs/blob/26ea71cefab55990ffb8197707f2a8518e41412d/arrow-arith/src/arity.rs#L59-L65 So i decide using `downcast_mut` then use `mem::take()` get the ` array: PrimitiveArray<I>, ` But there no `as_any_mut` , so i try to add this func 🤔. Seems there already one in `ArrayBuilder` https://github.com/apache/arrow-rs/blob/f0be9da82cbd76da3042b426daf6c424c9560d93/arrow-array/src/builder/mod.rs#L129 **Describe the solution you'd like** <!-- A clear and concise description of what you want to happen. --> **Describe alternatives you've considered** <!-- A clear and concise description of any alternative solutions or features you've considered. --> **Additional context** <!-- Add any other context or screenshots about the feature request here. --> -- 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]
