alamb opened a new issue, #7696: URL: https://github.com/apache/arrow-rs/issues/7696
**Is your feature request related to a problem or challenge? Please describe what you are trying to do.** As discussed by @scovich @PinkCrow007 and I on https://github.com/apache/arrow-rs/pull/7653#discussion_r2147015818 we need to figure out how to build nested objects **Describe the solution you'd like** I would like some way to create an nested structures such as lists of structs For example ```json [ { "first_name": "Jiaying", "last_name": "Li" }, { "first_name": "Malthe", "last_name": "Karbo" } ] ``` **Describe alternatives you've considered** One way would be to add `new_list` and `new_struct` methods to the existing `ListBuilder` and `StructBuilder`, something like ```rust let mut builder = VariantBuilder::new(); // create overall list let mut list = builder.new_list(); // create first object mut let obj = list.new_object(); // NOTE this is on the `list` builder not the overall builder obj.set("first_name", "Jiaying"); obj.set("last_name", "Li"); obj.finish(); // finish the first object // create second object mut let obj = list.new_object(); // NOTE this is on the `list` builder not the overall builder obj.set("first_name", "Malthe"); obj.set("last_name", "Karbo"); obj.finish(); // finish the first object // finish the overall list list.finish() let (metadata, value) = builder.fiinish(); ``` **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]
