Jefffrey opened a new issue, #12031: URL: https://github.com/apache/arrow-rs/issues/12031
### Describe the bug https://github.com/apache/arrow-rs/blob/e2c48ef0dd83fa464d643e25f8e9f9177ca7316e/arrow-array/src/builder/map_builder.rs#L174-L179 https://github.com/apache/arrow-rs/blob/e2c48ef0dd83fa464d643e25f8e9f9177ca7316e/arrow-array/src/builder/map_builder.rs#L185-L191 In these methods we append offset using `as i32` cast, which in extreme cases can wrap. We should be checking this to error if it overflows, otherwise it can create an invalid map array (wraps to negative, offsets no longer valid) ### To Reproduce _No response_ ### Expected behavior _No response_ ### Additional context Identified by Dr Charles Grellois -- This is an automated message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]
