tustvold opened a new issue, #3982: URL: https://github.com/apache/arrow-rs/issues/3982
**Is your feature request related to a problem or challenge? Please describe what you are trying to do.** <!-- A clear and concise description of what the problem is. Ex. I'm always frustrated when [...] (This section helps Arrow developers understand the context and *why* for this feature, in addition to the *what*) --> Currently `DataType::Union` has no protection against the same type ID appearing multiple times in its `DataType`. **Describe the solution you'd like** <!-- A clear and concise description of what you want to happen. --> We should probably validate that the `type_ids` are unique, and prevent constructing an invalid `DataType` **Describe alternatives you've considered** <!-- A clear and concise description of any alternative solutions or features you've considered. --> We could not do this, much like currently permit invalid `DataType::Decimal` #2362 **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]
