Hello, Thanks for you answer and support. Do you have any rough idea when this will be available ?
Thanks Louis ________________________________ De : David Li <[email protected]> Envoyé : mardi 26 juillet 2022 17:22 À : dl <[email protected]> Objet : Re: [C++] Scalar cast of MAP and LIST to STRING Hi Louis, It just happens they aren't implemented, I don't think there's any particular reason. I've filed ARROW-17214 [1] to track this. [1]: https://issues.apache.org/jira/browse/ARROW-17214 -David On Tue, Jul 26, 2022, at 05:19, Louis C wrote: Hello, I use scalar casts to STRING type as a way to represent easily the more complex arrow types such as STRUCT or UNION. For these types, the Scalar cast (CastTo method) is correctly implemented, giving results such as :"union{1: bool = false}" However, when casting LIST, LARGE_LIST or MAP types, it gives NotImplemented error. Is there a particular reason why it is the case ? Is it planned to make it work ? Best regards Louis C
