dongjoon-hyun opened a new pull request #705: URL: https://github.com/apache/orc/pull/705
### What changes were proposed in this pull request? This PR aims to use `List` instead of `Set` in `MaskDescriptionImpl`. ### Why are the changes needed? The mask can be used by multiple columns with the same types. ### How was this patch tested? Test will be added. -- 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: [email protected]
