chasingegg commented on pull request #35290: URL: https://github.com/apache/spark/pull/35290#issuecomment-1034961869
But `select a, a union select a, b` would still produce two same attr ids (like a#1, a#1) with your approach? Then `select a from (select a, a union select a, b)` will not fail. -- 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] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
