nbruno commented on pull request #9151: URL: https://github.com/apache/arrow/pull/9151#issuecomment-764664522
@liyafan82 It might be implicitly supported, but you'd have to be aware of that implementation detail in order to work with it. It's also less fluent to work with a list of structs to imply a map in the readers / writers, rather than a dedicated map API. It was also noted as a gap in the API on the [mailing list](https://lists.apache.org/thread.html/r6e2de4be2cdea11e3f277aff2c23b2bda0782d9460d4dddf5c11f240%40%3Cuser.arrow.apache.org%3E). ---------------------------------------------------------------- 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. For queries about this service, please contact Infrastructure at: us...@infra.apache.org
